Dec 19 21:53:10.127 INFO checking Siosm/ffto against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:53:10.127 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Siosm/ffto:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:53:10.592 INFO [stdout] 55fafe24106acf2664e97523395c8cc640e8fcc050c4862a37a104181656bf68
Dec 19 21:53:10.592 INFO running `"docker" "start" "-a" "55fafe24106acf2664e97523395c8cc640e8fcc050c4862a37a104181656bf68"`
Dec 19 21:53:12.530 INFO [stderr]    Compiling syn v0.14.7
Dec 19 21:53:21.288 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 19 21:53:24.782 INFO [stderr]     Checking structopt v0.2.10
Dec 19 21:53:25.316 INFO [stderr]     Checking ffto v0.0.2 (/opt/crater/workdir)
Dec 19 21:53:26.305 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 21:53:26.305 INFO [stderr]  --> src/main.rs:6:1
Dec 19 21:53:26.305 INFO [stderr]   |
Dec 19 21:53:26.305 INFO [stderr] 6 | #[macro_use]
Dec 19 21:53:26.305 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 21:53:26.305 INFO [stderr]   |
Dec 19 21:53:26.312 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:53:26.312 INFO [stderr] 
Dec 19 21:53:26.359 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 21:53:26.359 INFO [stderr]  --> src/main.rs:6:1
Dec 19 21:53:26.360 INFO [stderr]   |
Dec 19 21:53:26.360 INFO [stderr] 6 | #[macro_use]
Dec 19 21:53:26.360 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 21:53:26.361 INFO [stderr]   |
Dec 19 21:53:26.361 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:53:26.368 INFO [stderr] 
Dec 19 21:53:26.682 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.24s
Dec 19 21:53:27.882 INFO running `"docker" "inspect" "55fafe24106acf2664e97523395c8cc640e8fcc050c4862a37a104181656bf68"`
Dec 19 21:53:28.210 INFO running `"docker" "rm" "-f" "55fafe24106acf2664e97523395c8cc640e8fcc050c4862a37a104181656bf68"`
Dec 19 21:53:28.580 INFO [stdout] 55fafe24106acf2664e97523395c8cc640e8fcc050c4862a37a104181656bf68