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Send textual profile data to stderr, not stdout

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This makes it possible to run with RUSTFLAGS="-Zself-profile" without
having to redirect compiler output; otherwise Cargo will error out due
to non-empty compiler stdout.
This commit is contained in:
Mark Rousskov 2018-12-05 21:48:25 -07:00
parent b866f7d258
commit 84443a3a24
1 changed files with 3 additions and 3 deletions
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6
src/librustc/util/profiling.rs
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@ -11,7 +11,7 @@
use session::config::Options;
use std::fs;
use std::io::{self, StdoutLock, Write};
use std::io::{self, StderrLock, Write};
use std::time::{Duration, Instant};
macro_rules! define_categories {
@ -61,7 +61,7 @@ macro_rules! define_categories {
}
}
fn print(&self, lock: &mut StdoutLock<'_>) {
fn print(&self, lock: &mut StderrLock<'_>) {
writeln!(lock, "| Phase | Time (ms) | Queries | Hits (%) |")
.unwrap();
writeln!(lock, "| ---------------- | -------------- | -------------- | -------- |")
@ -235,7 +235,7 @@ impl SelfProfiler {
self.timer_stack.is_empty(),
"there were timers running when print_results() was called");
let out = io::stdout();
let out = io::stderr();
let mut lock = out.lock();
let crate_name =