Nov 29 22:13:35.500 INFO checking mitsuhiko/systemfd against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 22:13:35.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 29 22:13:35.807 INFO [stdout] 2c129a1eeb0c714d6d5c55b89777f03490e3e228c9612104689ce7c73ab95341
Nov 29 22:13:35.812 INFO running `"docker" "start" "-a" "2c129a1eeb0c714d6d5c55b89777f03490e3e228c9612104689ce7c73ab95341"`
Nov 29 22:13:36.489 INFO [stderr] usermod: no changes
Nov 29 22:13:36.629 INFO [stderr]     Checking clap v2.31.2
Nov 29 22:13:36.629 INFO [stderr]     Checking nix v0.10.0
Nov 29 22:13:36.629 INFO [stderr]     Checking regex v0.2.11
Nov 29 22:13:36.629 INFO [stderr]     Checking regex v1.0.0
Nov 29 22:13:40.688 INFO [stderr]     Checking console v0.6.1
Nov 29 22:13:46.672 INFO [stderr]     Checking systemfd v0.3.0 (/source)
Nov 29 22:13:48.564 INFO [stderr] warning: struct is never constructed: `QuietExit`
Nov 29 22:13:48.564 INFO [stderr]  --> src/utils.rs:5:1
Nov 29 22:13:48.564 INFO [stderr]   |
Nov 29 22:13:48.564 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Nov 29 22:13:48.564 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:13:48.564 INFO [stderr]   |
Nov 29 22:13:48.564 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 22:13:48.564 INFO [stderr] 
Nov 29 22:13:48.564 INFO [stderr] warning: unused attribute
Nov 29 22:13:48.564 INFO [stderr]  --> src/utils.rs:4:1
Nov 29 22:13:48.564 INFO [stderr]   |
Nov 29 22:13:48.564 INFO [stderr] 4 | #[ignore(dead_code)]
Nov 29 22:13:48.564 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 29 22:13:48.564 INFO [stderr]   |
Nov 29 22:13:48.564 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 29 22:13:48.564 INFO [stderr] 
Nov 29 22:13:48.648 INFO [stderr] warning: struct is never constructed: `QuietExit`
Nov 29 22:13:48.648 INFO [stderr]  --> src/utils.rs:5:1
Nov 29 22:13:48.648 INFO [stderr]   |
Nov 29 22:13:48.648 INFO [stderr] 5 | pub struct QuietExit(pub i32);
Nov 29 22:13:48.648 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:13:48.648 INFO [stderr]   |
Nov 29 22:13:48.648 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 22:13:48.648 INFO [stderr] 
Nov 29 22:13:48.648 INFO [stderr] warning: unused attribute
Nov 29 22:13:48.652 INFO [stderr]  --> src/utils.rs:4:1
Nov 29 22:13:48.652 INFO [stderr]   |
Nov 29 22:13:48.652 INFO [stderr] 4 | #[ignore(dead_code)]
Nov 29 22:13:48.652 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 29 22:13:48.652 INFO [stderr]   |
Nov 29 22:13:48.652 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Nov 29 22:13:48.652 INFO [stderr] 
Nov 29 22:13:48.694 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.19s
Nov 29 22:13:48.708 INFO [stderr] su: No module specific data is present
Nov 29 22:13:49.408 INFO running `"docker" "inspect" "2c129a1eeb0c714d6d5c55b89777f03490e3e228c9612104689ce7c73ab95341"`
Nov 29 22:13:49.714 INFO running `"docker" "rm" "-f" "2c129a1eeb0c714d6d5c55b89777f03490e3e228c9612104689ce7c73ab95341"`
Nov 29 22:13:50.003 INFO [stdout] 2c129a1eeb0c714d6d5c55b89777f03490e3e228c9612104689ce7c73ab95341