Nov 28 00:33:50.197 INFO checking mitsuhiko/systemfd against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:33:50.199 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 00:33:50.685 INFO [stdout] 55fe53796a5973a605a7cdab74913396711f816d214d304cb86b158eac5b0cd2
Nov 28 00:33:50.690 INFO running `"docker" "start" "-a" "55fe53796a5973a605a7cdab74913396711f816d214d304cb86b158eac5b0cd2"`
Nov 28 00:33:51.912 INFO [stderr] usermod: no changes
Nov 28 00:33:52.058 INFO [stderr]     Checking clap v2.31.2
Nov 28 00:33:52.058 INFO [stderr]     Checking nix v0.10.0
Nov 28 00:33:52.058 INFO [stderr]     Checking regex v0.2.11
Nov 28 00:33:52.064 INFO [stderr]     Checking regex v1.0.0
Nov 28 00:33:52.068 INFO [stderr]     Checking failure v0.1.1
Nov 28 00:33:57.364 INFO [stderr]     Checking console v0.6.1
Nov 28 00:34:01.632 INFO [stderr]     Checking systemfd v0.3.0 (/source)
Nov 28 00:34:03.225 INFO [stderr] warning: struct is never constructed: `QuietExit`
Nov 28 00:34:03.225 INFO [stderr]  --> src/utils.rs:5:1
Nov 28 00:34:03.225 INFO [stderr]   |
Nov 28 00:34:03.225 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Nov 28 00:34:03.225 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:03.225 INFO [stderr]   |
Nov 28 00:34:03.225 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 00:34:03.225 INFO [stderr] 
Nov 28 00:34:03.231 INFO [stderr] warning: unused attribute
Nov 28 00:34:03.231 INFO [stderr]  --> src/utils.rs:4:1
Nov 28 00:34:03.231 INFO [stderr]   |
Nov 28 00:34:03.231 INFO [stderr] 4 | #[ignore(dead_code)]
Nov 28 00:34:03.231 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:03.231 INFO [stderr]   |
Nov 28 00:34:03.231 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 28 00:34:03.231 INFO [stderr] 
Nov 28 00:34:03.380 INFO [stderr] warning: struct is never constructed: `QuietExit`
Nov 28 00:34:03.380 INFO [stderr]  --> src/utils.rs:5:1
Nov 28 00:34:03.380 INFO [stderr]   |
Nov 28 00:34:03.380 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Nov 28 00:34:03.380 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:03.380 INFO [stderr]   |
Nov 28 00:34:03.380 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 00:34:03.380 INFO [stderr] 
Nov 28 00:34:03.389 INFO [stderr] warning: unused attribute
Nov 28 00:34:03.390 INFO [stderr]  --> src/utils.rs:4:1
Nov 28 00:34:03.390 INFO [stderr]   |
Nov 28 00:34:03.390 INFO [stderr] 4 | #[ignore(dead_code)]
Nov 28 00:34:03.390 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:34:03.390 INFO [stderr]   |
Nov 28 00:34:03.390 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 28 00:34:03.390 INFO [stderr] 
Nov 28 00:34:03.408 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.47s
Nov 28 00:34:03.422 INFO [stderr] su: No module specific data is present
Nov 28 00:34:04.639 INFO running `"docker" "inspect" "55fe53796a5973a605a7cdab74913396711f816d214d304cb86b158eac5b0cd2"`
Nov 28 00:34:04.888 INFO running `"docker" "rm" "-f" "55fe53796a5973a605a7cdab74913396711f816d214d304cb86b158eac5b0cd2"`
Nov 28 00:34:05.241 INFO [stdout] 55fe53796a5973a605a7cdab74913396711f816d214d304cb86b158eac5b0cd2