Oct 12 17:20:39.523 INFO checking mitsuhiko/systemfd against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 17:20:39.524 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 17:20:39.966 INFO blam! 065acd2ce5331de6f5f8f943efc93c138392e6d045f3db9fba31f27b7ef09694
Oct 12 17:20:39.968 INFO running `"docker" "start" "-a" "065acd2ce5331de6f5f8f943efc93c138392e6d045f3db9fba31f27b7ef09694"`
Oct 12 17:20:41.157 INFO kablam! usermod: no changes
Oct 12 17:20:41.460 INFO kablam!     Checking termios v0.2.2
Oct 12 17:20:41.461 INFO kablam!     Checking clicolors-control v0.2.0
Oct 12 17:20:41.468 INFO kablam!     Checking regex v0.2.11
Oct 12 17:20:41.468 INFO kablam!     Checking regex v1.0.0
Oct 12 17:20:41.468 INFO kablam!     Checking nix v0.10.0
Oct 12 17:20:45.940 INFO kablam!     Checking console v0.6.1
Oct 12 17:20:50.628 INFO kablam!     Checking systemfd v0.3.0 (/source)
Oct 12 17:20:52.096 INFO kablam! warning: struct is never constructed: `QuietExit`
Oct 12 17:20:52.096 INFO kablam!  --> src/utils.rs:5:1
Oct 12 17:20:52.096 INFO kablam!   |
Oct 12 17:20:52.096 INFO kablam! 5 | pub struct QuietExit(pub i32);
Oct 12 17:20:52.096 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 17:20:52.096 INFO kablam!   |
Oct 12 17:20:52.096 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 17:20:52.096 INFO kablam! 
Oct 12 17:20:52.096 INFO kablam! warning: unused attribute
Oct 12 17:20:52.096 INFO kablam!  --> src/utils.rs:4:1
Oct 12 17:20:52.096 INFO kablam!   |
Oct 12 17:20:52.096 INFO kablam! 4 | #[ignore(dead_code)]
Oct 12 17:20:52.096 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Oct 12 17:20:52.096 INFO kablam!   |
Oct 12 17:20:52.096 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Oct 12 17:20:52.096 INFO kablam! 
Oct 12 17:20:52.176 INFO kablam! warning: struct is never constructed: `QuietExit`
Oct 12 17:20:52.176 INFO kablam!  --> src/utils.rs:5:1
Oct 12 17:20:52.176 INFO kablam!   |
Oct 12 17:20:52.176 INFO kablam! 5 | pub struct QuietExit(pub i32);
Oct 12 17:20:52.176 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 17:20:52.176 INFO kablam!   |
Oct 12 17:20:52.176 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 17:20:52.176 INFO kablam! 
Oct 12 17:20:52.176 INFO kablam! warning: unused attribute
Oct 12 17:20:52.176 INFO kablam!  --> src/utils.rs:4:1
Oct 12 17:20:52.176 INFO kablam!   |
Oct 12 17:20:52.176 INFO kablam! 4 | #[ignore(dead_code)]
Oct 12 17:20:52.176 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Oct 12 17:20:52.176 INFO kablam!   |
Oct 12 17:20:52.176 INFO kablam!   = note: #[warn(unused_attributes)] on by default
Oct 12 17:20:52.176 INFO kablam! 
Oct 12 17:20:52.212 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.01s
Oct 12 17:20:52.224 INFO kablam! su: No module specific data is present
Oct 12 17:20:52.565 INFO running `"docker" "rm" "-f" "065acd2ce5331de6f5f8f943efc93c138392e6d045f3db9fba31f27b7ef09694"`
Oct 12 17:20:52.756 INFO blam! 065acd2ce5331de6f5f8f943efc93c138392e6d045f3db9fba31f27b7ef09694