Sep 21 02:06:12.619 INFO checking tac-0.2.3 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 02:06:12.619 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 02:06:12.619 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 02:06:12.865 INFO blam! 8d3b8b97b05f3eb008afe88b2149e5b200e7bb6bf0a86fd5f23addb31c49947b
Sep 21 02:06:12.867 INFO running `"docker" "start" "-a" "8d3b8b97b05f3eb008afe88b2149e5b200e7bb6bf0a86fd5f23addb31c49947b"`
Sep 21 02:06:13.754 INFO kablam! usermod: no changes
Sep 21 02:06:13.795 INFO kablam!     Checking memmap v0.5.2
Sep 21 02:06:14.170 INFO kablam!     Checking tac v0.2.3 (/source)
Sep 21 02:06:14.587 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:06:14.587 INFO kablam!   --> src/main.rs:64:16
Sep 21 02:06:14.587 INFO kablam!    |
Sep 21 02:06:14.587 INFO kablam! 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Sep 21 02:06:14.587 INFO kablam!    |                ----^^^^^^
Sep 21 02:06:14.587 INFO kablam!    |                |
Sep 21 02:06:14.587 INFO kablam!    |                help: remove this `mut`
Sep 21 02:06:14.587 INFO kablam!    |
Sep 21 02:06:14.587 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 02:06:14.588 INFO kablam! 
Sep 21 02:06:14.616 INFO kablam! warning: variable does not need to be mutable
Sep 21 02:06:14.616 INFO kablam!   --> src/main.rs:64:16
Sep 21 02:06:14.616 INFO kablam!    |
Sep 21 02:06:14.616 INFO kablam! 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Sep 21 02:06:14.616 INFO kablam!    |                ----^^^^^^
Sep 21 02:06:14.616 INFO kablam!    |                |
Sep 21 02:06:14.616 INFO kablam!    |                help: remove this `mut`
Sep 21 02:06:14.616 INFO kablam!    |
Sep 21 02:06:14.616 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 02:06:14.616 INFO kablam! 
Sep 21 02:06:14.640 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Sep 21 02:06:14.644 INFO kablam! su: No module specific data is present
Sep 21 02:06:15.317 INFO running `"docker" "rm" "-f" "8d3b8b97b05f3eb008afe88b2149e5b200e7bb6bf0a86fd5f23addb31c49947b"`
Sep 21 02:06:15.424 INFO blam! 8d3b8b97b05f3eb008afe88b2149e5b200e7bb6bf0a86fd5f23addb31c49947b