Dec 04 14:02:27.488 INFO checking mitsuhiko/systemfd against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 14:02:27.489 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 14:02:27.867 INFO [stdout] 46f7504c3168bf80f3188537a0bee519796b448a663615ba28309d77864f0c31
Dec 04 14:02:27.873 INFO running `"docker" "start" "-a" "46f7504c3168bf80f3188537a0bee519796b448a663615ba28309d77864f0c31"`
Dec 04 14:02:28.455 INFO [stderr] usermod: no changes
Dec 04 14:02:28.627 INFO [stderr]     Checking termios v0.2.2
Dec 04 14:02:28.627 INFO [stderr]     Checking clicolors-control v0.2.0
Dec 04 14:02:28.627 INFO [stderr]     Checking regex v1.0.0
Dec 04 14:02:28.627 INFO [stderr]     Checking failure v0.1.1
Dec 04 14:02:29.145 INFO [stderr]     Checking console v0.6.1
Dec 04 14:02:31.109 INFO [stderr]     Checking systemfd v0.3.0 (/source)
Dec 04 14:02:33.015 INFO [stderr] warning: struct is never constructed: `QuietExit`
Dec 04 14:02:33.015 INFO [stderr]  --> src/utils.rs:5:1
Dec 04 14:02:33.015 INFO [stderr]   |
Dec 04 14:02:33.015 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Dec 04 14:02:33.015 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:02:33.015 INFO [stderr]   |
Dec 04 14:02:33.015 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 14:02:33.015 INFO [stderr] 
Dec 04 14:02:33.021 INFO [stderr] warning: unused attribute
Dec 04 14:02:33.021 INFO [stderr]  --> src/utils.rs:4:1
Dec 04 14:02:33.021 INFO [stderr]   |
Dec 04 14:02:33.021 INFO [stderr] 4 | #[ignore(dead_code)]
Dec 04 14:02:33.021 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 04 14:02:33.021 INFO [stderr]   |
Dec 04 14:02:33.021 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 04 14:02:33.021 INFO [stderr] 
Dec 04 14:02:33.035 INFO [stderr] warning: struct is never constructed: `QuietExit`
Dec 04 14:02:33.035 INFO [stderr]  --> src/utils.rs:5:1
Dec 04 14:02:33.035 INFO [stderr]   |
Dec 04 14:02:33.036 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Dec 04 14:02:33.039 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:02:33.039 INFO [stderr]   |
Dec 04 14:02:33.039 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 14:02:33.039 INFO [stderr] 
Dec 04 14:02:33.039 INFO [stderr] warning: unused attribute
Dec 04 14:02:33.039 INFO [stderr]  --> src/utils.rs:4:1
Dec 04 14:02:33.039 INFO [stderr]   |
Dec 04 14:02:33.039 INFO [stderr] 4 | #[ignore(dead_code)]
Dec 04 14:02:33.039 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 04 14:02:33.039 INFO [stderr]   |
Dec 04 14:02:33.039 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 04 14:02:33.039 INFO [stderr] 
Dec 04 14:02:33.091 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
Dec 04 14:02:33.102 INFO [stderr] su: No module specific data is present
Dec 04 14:02:33.890 INFO running `"docker" "inspect" "46f7504c3168bf80f3188537a0bee519796b448a663615ba28309d77864f0c31"`
Dec 04 14:02:34.287 INFO running `"docker" "rm" "-f" "46f7504c3168bf80f3188537a0bee519796b448a663615ba28309d77864f0c31"`
Dec 04 14:02:34.683 INFO [stdout] 46f7504c3168bf80f3188537a0bee519796b448a663615ba28309d77864f0c31