Dec 19 08:53:04.609 INFO checking shterrett/rust-concurrency-tutorial against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 08:53:04.609 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/shterrett/rust-concurrency-tutorial:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:53:05.150 INFO [stdout] ca4d4a68799bcd5714bac9f9ecb9e25cb62c8722e2958ffd29dfac101447aded
Dec 19 08:53:05.152 INFO running `"docker" "start" "-a" "ca4d4a68799bcd5714bac9f9ecb9e25cb62c8722e2958ffd29dfac101447aded"`
Dec 19 08:53:07.764 INFO [stderr]     Checking chan v0.1.19
Dec 19 08:53:08.436 INFO [stderr]     Checking rust-concurrency-tutorial v0.1.0 (/opt/crater/workdir)
Dec 19 08:53:08.636 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 08:53:08.636 INFO [stderr]  --> src/main.rs:1:1
Dec 19 08:53:08.636 INFO [stderr]   |
Dec 19 08:53:08.636 INFO [stderr] 1 | #[macro_use]
Dec 19 08:53:08.636 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 08:53:08.636 INFO [stderr]   |
Dec 19 08:53:08.636 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 08:53:08.637 INFO [stderr] 
Dec 19 08:53:08.673 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 08:53:08.673 INFO [stderr]  --> src/main.rs:1:1
Dec 19 08:53:08.673 INFO [stderr]   |
Dec 19 08:53:08.673 INFO [stderr] 1 | #[macro_use]
Dec 19 08:53:08.673 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 08:53:08.673 INFO [stderr]   |
Dec 19 08:53:08.673 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 08:53:08.673 INFO [stderr] 
Dec 19 08:53:08.904 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Dec 19 08:53:10.151 INFO running `"docker" "inspect" "ca4d4a68799bcd5714bac9f9ecb9e25cb62c8722e2958ffd29dfac101447aded"`
Dec 19 08:53:10.452 INFO running `"docker" "rm" "-f" "ca4d4a68799bcd5714bac9f9ecb9e25cb62c8722e2958ffd29dfac101447aded"`
Dec 19 08:53:10.788 INFO [stdout] ca4d4a68799bcd5714bac9f9ecb9e25cb62c8722e2958ffd29dfac101447aded