Dec 17 11:29:16.073 INFO checking yberreby/benchmarks against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 11:29:16.073 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/yberreby/benchmarks:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:29:16.560 INFO [stdout] edd9a2bace5c4c788a555fef2f82efa63a5917db783a69a68f226c437445837d
Dec 17 11:29:16.562 INFO running `"docker" "start" "-a" "edd9a2bace5c4c788a555fef2f82efa63a5917db783a69a68f226c437445837d"`
Dec 17 11:29:18.820 INFO [stderr]     Checking libc v0.2.8
Dec 17 11:29:19.461 INFO [stderr]     Checking rand v0.3.14
Dec 17 11:29:20.779 INFO [stderr]     Checking chan v0.1.18
Dec 17 11:29:21.297 INFO [stderr]     Checking benchmarks v0.1.0 (/opt/crater/workdir)
Dec 17 11:29:21.888 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 17 11:29:21.889 INFO [stderr]  --> benches/channels.rs:9:5
Dec 17 11:29:21.889 INFO [stderr]   |
Dec 17 11:29:21.889 INFO [stderr] 9 | use std::sync::mpsc;
Dec 17 11:29:21.889 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 17 11:29:21.889 INFO [stderr]   |
Dec 17 11:29:21.889 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:29:21.889 INFO [stderr] 
Dec 17 11:29:22.072 INFO [stderr] warning: unused variable: `sum`
Dec 17 11:29:22.072 INFO [stderr]   --> benches/channels.rs:26:9
Dec 17 11:29:22.072 INFO [stderr]    |
Dec 17 11:29:22.072 INFO [stderr] 26 |     let sum = get_data_sum(data.iter().cloned());
Dec 17 11:29:22.072 INFO [stderr]    |         ^^^ help: consider using `_sum` instead
Dec 17 11:29:22.072 INFO [stderr]    |
Dec 17 11:29:22.072 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 11:29:22.072 INFO [stderr] 
Dec 17 11:29:22.072 INFO [stderr] warning: unused variable: `data`
Dec 17 11:29:22.072 INFO [stderr]   --> benches/channels.rs:29:9
Dec 17 11:29:22.072 INFO [stderr]    |
Dec 17 11:29:22.072 INFO [stderr] 29 |     let data = data.clone();
Dec 17 11:29:22.072 INFO [stderr]    |         ^^^^ help: consider using `_data` instead
Dec 17 11:29:22.072 INFO [stderr] 
Dec 17 11:29:22.128 INFO [stderr] error[E0635]: unknown feature `str_char`
Dec 17 11:29:22.128 INFO [stderr]  --> benches/char_at.rs:2:12
Dec 17 11:29:22.128 INFO [stderr]   |
Dec 17 11:29:22.128 INFO [stderr] 2 | #![feature(str_char)]
Dec 17 11:29:22.128 INFO [stderr]   |            ^^^^^^^^
Dec 17 11:29:22.128 INFO [stderr] 
Dec 17 11:29:22.128 INFO [stderr] error: aborting due to previous error
Dec 17 11:29:22.152 INFO [stderr] error[E0635]: unknown feature `heap_api`
Dec 17 11:29:22.152 INFO [stderr]  --> benches/channels.rs:1:25
Dec 17 11:29:22.152 INFO [stderr]   |
Dec 17 11:29:22.152 INFO [stderr] 1 | #![feature(test, alloc, heap_api)]
Dec 17 11:29:22.152 INFO [stderr]   |                         ^^^^^^^^
Dec 17 11:29:22.152 INFO [stderr] 
Dec 17 11:29:22.152 INFO [stderr] error: aborting due to previous error
Dec 17 11:29:22.152 INFO [stderr] 
Dec 17 11:29:22.152 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 17 11:29:22.164 INFO [stderr] 
Dec 17 11:29:22.164 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 17 11:29:22.172 INFO [stderr] error: Could not compile `benchmarks`.
Dec 17 11:29:22.172 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 17 11:29:22.188 INFO [stderr] error: Could not compile `benchmarks`.
Dec 17 11:29:22.188 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 17 11:29:22.448 INFO [stderr] warning: unused variable: `stdout`
Dec 17 11:29:22.448 INFO [stderr]   --> benches/stdio.rs:24:9
Dec 17 11:29:22.448 INFO [stderr]    |
Dec 17 11:29:22.448 INFO [stderr] 24 |     let stdout = stdout.lock();
Dec 17 11:29:22.448 INFO [stderr]    |         ^^^^^^ help: consider using `_stdout` instead
Dec 17 11:29:22.448 INFO [stderr]    |
Dec 17 11:29:22.448 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 11:29:22.448 INFO [stderr] 
Dec 17 11:29:22.460 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:29:22.460 INFO [stderr]   --> benches/stdio.rs:23:9
Dec 17 11:29:22.460 INFO [stderr]    |
Dec 17 11:29:22.460 INFO [stderr] 23 |     let mut stdout = std::io::stdout();
Dec 17 11:29:22.460 INFO [stderr]    |         ----^^^^^^
Dec 17 11:29:22.460 INFO [stderr]    |         |
Dec 17 11:29:22.460 INFO [stderr]    |         help: remove this `mut`
Dec 17 11:29:22.460 INFO [stderr]    |
Dec 17 11:29:22.460 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:29:22.460 INFO [stderr] 
Dec 17 11:29:22.462 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:29:22.462 INFO [stderr]   --> benches/stdio.rs:43:9
Dec 17 11:29:22.462 INFO [stderr]    |
Dec 17 11:29:22.462 INFO [stderr] 43 |     let mut stdout = io::stdout();
Dec 17 11:29:22.463 INFO [stderr]    |         ----^^^^^^
Dec 17 11:29:22.463 INFO [stderr]    |         |
Dec 17 11:29:22.463 INFO [stderr]    |         help: remove this `mut`
Dec 17 11:29:22.463 INFO [stderr] 
Dec 17 11:29:22.463 INFO [stderr] error[E0635]: unknown feature `str_char`
Dec 17 11:29:22.463 INFO [stderr]  --> benches/stdio.rs:4:12
Dec 17 11:29:22.463 INFO [stderr]   |
Dec 17 11:29:22.463 INFO [stderr] 4 | #![feature(str_char)]
Dec 17 11:29:22.463 INFO [stderr]   |            ^^^^^^^^
Dec 17 11:29:22.463 INFO [stderr] 
Dec 17 11:29:22.479 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:29:22.479 INFO [stderr]   --> benches/stdio.rs:35:9
Dec 17 11:29:22.479 INFO [stderr]    |
Dec 17 11:29:22.479 INFO [stderr] 35 |         stdout.write(TEST_STR.as_bytes());
Dec 17 11:29:22.479 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:29:22.479 INFO [stderr]    |
Dec 17 11:29:22.479 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:29:22.479 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:29:22.479 INFO [stderr] 
Dec 17 11:29:22.479 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:29:22.479 INFO [stderr]   --> benches/stdio.rs:46:9
Dec 17 11:29:22.479 INFO [stderr]    |
Dec 17 11:29:22.479 INFO [stderr] 46 |         stdout.write(TEST_STR.as_bytes());
Dec 17 11:29:22.479 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:29:22.479 INFO [stderr]    |
Dec 17 11:29:22.479 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:29:22.479 INFO [stderr] 
Dec 17 11:29:22.481 INFO [stderr] error: aborting due to previous error
Dec 17 11:29:22.482 INFO [stderr] 
Dec 17 11:29:22.482 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 17 11:29:22.494 INFO [stderr] error: Could not compile `benchmarks`.
Dec 17 11:29:22.494 INFO [stderr] 
Dec 17 11:29:22.494 INFO [stderr] To learn more, run the command again with --verbose.
Dec 17 11:29:23.362 INFO running `"docker" "inspect" "edd9a2bace5c4c788a555fef2f82efa63a5917db783a69a68f226c437445837d"`
Dec 17 11:29:23.728 INFO running `"docker" "rm" "-f" "edd9a2bace5c4c788a555fef2f82efa63a5917db783a69a68f226c437445837d"`
Dec 17 11:29:24.056 INFO [stdout] edd9a2bace5c4c788a555fef2f82efa63a5917db783a69a68f226c437445837d