Dec 18 17:19:57.301 INFO checking cpuio-0.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 17:19:57.301 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/cpuio/0.2.0:/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 18 17:19:57.503 INFO [stdout] 41abf2ea33d08271efd0be878123fa3ee2a3dd464db433012d512a5f7045c3a2
Dec 18 17:19:57.510 INFO running `"docker" "start" "-a" "41abf2ea33d08271efd0be878123fa3ee2a3dd464db433012d512a5f7045c3a2"`
Dec 18 17:19:58.239 INFO [stderr]     Checking cpuio v0.2.0 (/opt/crater/workdir)
Dec 18 17:19:58.469 INFO [stderr] warning: the feature `no_std` has been stable since 1.6.0 and no longer requires an attribute to enable
Dec 18 17:19:58.469 INFO [stderr]  --> src/lib.rs:4:27
Dec 18 17:19:58.469 INFO [stderr]   |
Dec 18 17:19:58.469 INFO [stderr] 4 | #![feature(asm, const_fn, no_std)]
Dec 18 17:19:58.469 INFO [stderr]   |                           ^^^^^^
Dec 18 17:19:58.469 INFO [stderr]   |
Dec 18 17:19:58.469 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 17:19:58.469 INFO [stderr] 
Dec 18 17:19:58.528 INFO [stderr] warning: the feature `no_std` has been stable since 1.6.0 and no longer requires an attribute to enable
Dec 18 17:19:58.528 INFO [stderr]  --> src/lib.rs:4:27
Dec 18 17:19:58.528 INFO [stderr]   |
Dec 18 17:19:58.528 INFO [stderr] 4 | #![feature(asm, const_fn, no_std)]
Dec 18 17:19:58.528 INFO [stderr]   |                           ^^^^^^
Dec 18 17:19:58.528 INFO [stderr]   |
Dec 18 17:19:58.528 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 17:19:58.528 INFO [stderr] 
Dec 18 17:19:58.824 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 18 17:19:59.106 INFO running `"docker" "inspect" "41abf2ea33d08271efd0be878123fa3ee2a3dd464db433012d512a5f7045c3a2"`
Dec 18 17:19:59.178 INFO running `"docker" "rm" "-f" "41abf2ea33d08271efd0be878123fa3ee2a3dd464db433012d512a5f7045c3a2"`
Dec 18 17:19:59.292 INFO [stdout] 41abf2ea33d08271efd0be878123fa3ee2a3dd464db433012d512a5f7045c3a2