Dec 17 17:44:27.119 INFO checking pkgw/serenv against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:44:27.119 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/gh/pkgw/serenv:/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 17:44:27.432 INFO [stdout] a3d2e5871b4561d3851ff33b21182e7c74638bde01d44d58d31cd3ae613b763e
Dec 17 17:44:27.434 INFO running `"docker" "start" "-a" "a3d2e5871b4561d3851ff33b21182e7c74638bde01d44d58d31cd3ae613b763e"`
Dec 17 17:44:28.193 INFO [stderr]    Compiling cc v1.0.24
Dec 17 17:44:28.194 INFO [stderr]     Checking bincode v1.0.1
Dec 17 17:44:33.041 INFO [stderr]    Compiling backtrace-sys v0.1.24
Dec 17 17:44:35.607 INFO [stderr]     Checking backtrace v0.3.9
Dec 17 17:44:36.089 INFO [stderr]     Checking failure v0.1.2
Dec 17 17:44:36.689 INFO [stderr]     Checking serenv v0.1.0 (/opt/crater/workdir)
Dec 17 17:44:37.588 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 17:44:37.588 INFO [stderr]   --> src/main.rs:14:1
Dec 17 17:44:37.588 INFO [stderr]    |
Dec 17 17:44:37.588 INFO [stderr] 14 | #[macro_use] extern crate structopt;
Dec 17 17:44:37.588 INFO [stderr]    | ^^^^^^^^^^^^
Dec 17 17:44:37.588 INFO [stderr]    |
Dec 17 17:44:37.588 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 17:44:37.588 INFO [stderr] 
Dec 17 17:44:37.616 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 17:44:37.628 INFO [stderr]   --> src/main.rs:14:1
Dec 17 17:44:37.628 INFO [stderr]    |
Dec 17 17:44:37.628 INFO [stderr] 14 | #[macro_use] extern crate structopt;
Dec 17 17:44:37.628 INFO [stderr]    | ^^^^^^^^^^^^
Dec 17 17:44:37.628 INFO [stderr]    |
Dec 17 17:44:37.628 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 17:44:37.628 INFO [stderr] 
Dec 17 17:44:38.138 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.03s
Dec 17 17:44:39.373 INFO running `"docker" "inspect" "a3d2e5871b4561d3851ff33b21182e7c74638bde01d44d58d31cd3ae613b763e"`
Dec 17 17:44:39.642 INFO running `"docker" "rm" "-f" "a3d2e5871b4561d3851ff33b21182e7c74638bde01d44d58d31cd3ae613b763e"`
Dec 17 17:44:39.892 INFO [stdout] a3d2e5871b4561d3851ff33b21182e7c74638bde01d44d58d31cd3ae613b763e