Nov 28 00:33:50.511 INFO checking mitsuhiko/systemfd against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 00:33:50.513 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 00:33:50.928 INFO [stdout] 4c846623f87d1d0398e93b980c8d62991f8095e686f5c0b944313ba14d75adb6
Nov 28 00:33:50.930 INFO running `"docker" "start" "-a" "4c846623f87d1d0398e93b980c8d62991f8095e686f5c0b944313ba14d75adb6"`
Nov 28 00:33:52.021 INFO [stderr] usermod: no changes
Nov 28 00:33:52.241 INFO [stderr]     Checking nix v0.10.0
Nov 28 00:33:52.241 INFO [stderr]     Checking regex v0.2.11
Nov 28 00:33:52.242 INFO [stderr]     Checking regex v1.0.0
Nov 28 00:33:57.321 INFO [stderr]     Checking console v0.6.1
Nov 28 00:34:00.521 INFO [stderr]     Checking systemfd v0.3.0 (/source)
Nov 28 00:34:02.064 INFO [stderr] warning: struct is never constructed: `QuietExit`
Nov 28 00:34:02.064 INFO [stderr]  --> src/utils.rs:5:1
Nov 28 00:34:02.064 INFO [stderr]   |
Nov 28 00:34:02.064 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Nov 28 00:34:02.064 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:02.064 INFO [stderr]   |
Nov 28 00:34:02.064 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 00:34:02.064 INFO [stderr] 
Nov 28 00:34:02.072 INFO [stderr] warning: unused attribute
Nov 28 00:34:02.072 INFO [stderr]  --> src/utils.rs:4:1
Nov 28 00:34:02.072 INFO [stderr]   |
Nov 28 00:34:02.072 INFO [stderr] 4 | #[ignore(dead_code)]
Nov 28 00:34:02.072 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:02.072 INFO [stderr]   |
Nov 28 00:34:02.072 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 28 00:34:02.072 INFO [stderr] 
Nov 28 00:34:02.235 INFO [stderr] warning: struct is never constructed: `QuietExit`
Nov 28 00:34:02.235 INFO [stderr]  --> src/utils.rs:5:1
Nov 28 00:34:02.235 INFO [stderr]   |
Nov 28 00:34:02.235 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Nov 28 00:34:02.235 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:02.235 INFO [stderr]   |
Nov 28 00:34:02.235 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 00:34:02.235 INFO [stderr] 
Nov 28 00:34:02.243 INFO [stderr] warning: unused attribute
Nov 28 00:34:02.243 INFO [stderr]  --> src/utils.rs:4:1
Nov 28 00:34:02.243 INFO [stderr]   |
Nov 28 00:34:02.243 INFO [stderr] 4 | #[ignore(dead_code)]
Nov 28 00:34:02.243 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:02.244 INFO [stderr]   |
Nov 28 00:34:02.244 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 28 00:34:02.244 INFO [stderr] 
Nov 28 00:34:02.282 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.23s
Nov 28 00:34:02.293 INFO [stderr] su: No module specific data is present
Nov 28 00:34:03.364 INFO running `"docker" "inspect" "4c846623f87d1d0398e93b980c8d62991f8095e686f5c0b944313ba14d75adb6"`
Nov 28 00:34:03.587 INFO running `"docker" "rm" "-f" "4c846623f87d1d0398e93b980c8d62991f8095e686f5c0b944313ba14d75adb6"`
Nov 28 00:34:03.796 INFO [stdout] 4c846623f87d1d0398e93b980c8d62991f8095e686f5c0b944313ba14d75adb6