Aug 17 08:53:49.527 INFO checking tac-0.2.3 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 08:53:49.527 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 08:53:49.527 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 08:53:49.528 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-6/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/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=500" "-e" "CMD=cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 08:53:49.783 INFO blam! 6bbecfc6e9ce36ea441d48adbec10314494b2aba6f112d62aa08e6f45e6ad5d4
Aug 17 08:53:49.786 INFO running `"docker" "start" "-a" "6bbecfc6e9ce36ea441d48adbec10314494b2aba6f112d62aa08e6f45e6ad5d4"`
Aug 17 08:53:50.749 INFO kablam!     Checking memmap v0.5.2
Aug 17 08:53:50.756 INFO kablam!     Checking uuid v0.4.0
Aug 17 08:53:52.374 INFO kablam!     Checking tac v0.2.3 (file:///source)
Aug 17 08:53:53.401 INFO kablam! warning: variable does not need to be mutable
Aug 17 08:53:53.401 INFO kablam!   --> src/main.rs:64:16
Aug 17 08:53:53.401 INFO kablam!    |
Aug 17 08:53:53.401 INFO kablam! 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Aug 17 08:53:53.401 INFO kablam!    |                ----^^^^^^
Aug 17 08:53:53.401 INFO kablam!    |                |
Aug 17 08:53:53.401 INFO kablam!    |                help: remove this `mut`
Aug 17 08:53:53.401 INFO kablam!    |
Aug 17 08:53:53.401 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 17 08:53:53.401 INFO kablam! 
Aug 17 08:53:53.419 INFO kablam! warning: variable does not need to be mutable
Aug 17 08:53:53.419 INFO kablam!   --> src/main.rs:64:16
Aug 17 08:53:53.420 INFO kablam!    |
Aug 17 08:53:53.420 INFO kablam! 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Aug 17 08:53:53.420 INFO kablam!    |                ----^^^^^^
Aug 17 08:53:53.420 INFO kablam!    |                |
Aug 17 08:53:53.420 INFO kablam!    |                help: remove this `mut`
Aug 17 08:53:53.420 INFO kablam!    |
Aug 17 08:53:53.420 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 17 08:53:53.420 INFO kablam! 
Aug 17 08:53:53.555 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
Aug 17 08:53:53.563 INFO kablam! su: No module specific data is present
Aug 17 08:53:54.073 INFO running `"docker" "rm" "-f" "6bbecfc6e9ce36ea441d48adbec10314494b2aba6f112d62aa08e6f45e6ad5d4"`
Aug 17 08:53:54.256 INFO blam! 6bbecfc6e9ce36ea441d48adbec10314494b2aba6f112d62aa08e6f45e6ad5d4