Dec 12 17:33:22.627 INFO checking bitfields-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 17:33:22.627 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 17:33:23.046 INFO [stdout] c76383aa91638f9b7901359c046fa61a546946bde001e0381c64b04ba3ab0739
Dec 12 17:33:23.048 INFO running `"docker" "start" "-a" "c76383aa91638f9b7901359c046fa61a546946bde001e0381c64b04ba3ab0739"`
Dec 12 17:33:24.436 INFO [stderr] usermod: no changes
Dec 12 17:33:24.488 INFO [stderr]     Checking bitfields v0.1.0 (/source)
Dec 12 17:33:25.192 INFO [stderr] warning: function is never used: `byte_bit_offset`
Dec 12 17:33:25.192 INFO [stderr]    --> src/lib.rs:107:5
Dec 12 17:33:25.192 INFO [stderr]     |
Dec 12 17:33:25.192 INFO [stderr] 107 |     pub fn byte_bit_offset(idx: usize) -> (usize, usize) {
Dec 12 17:33:25.192 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:33:25.192 INFO [stderr]     |
Dec 12 17:33:25.192 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 17:33:25.192 INFO [stderr] 
Dec 12 17:33:25.192 INFO [stderr] warning: function is never used: `test_bit`
Dec 12 17:33:25.192 INFO [stderr]    --> src/lib.rs:115:5
Dec 12 17:33:25.192 INFO [stderr]     |
Dec 12 17:33:25.192 INFO [stderr] 115 |     pub fn test_bit(target: &u8, pos: usize) -> bool {
Dec 12 17:33:25.192 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:33:25.192 INFO [stderr] 
Dec 12 17:33:25.192 INFO [stderr] warning: function is never used: `set_bit`
Dec 12 17:33:25.192 INFO [stderr]    --> src/lib.rs:119:5
Dec 12 17:33:25.193 INFO [stderr]     |
Dec 12 17:33:25.193 INFO [stderr] 119 |     pub fn set_bit(target: &mut u8, pos: usize) {
Dec 12 17:33:25.193 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:33:25.193 INFO [stderr] 
Dec 12 17:33:25.193 INFO [stderr] warning: function is never used: `unset_bit`
Dec 12 17:33:25.193 INFO [stderr]    --> src/lib.rs:127:5
Dec 12 17:33:25.193 INFO [stderr]     |
Dec 12 17:33:25.193 INFO [stderr] 127 |     pub fn unset_bit(target: &mut u8, pos: usize) {
Dec 12 17:33:25.193 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:33:25.193 INFO [stderr] 
Dec 12 17:33:25.193 INFO [stderr] warning: function is never used: `toggle_bit`
Dec 12 17:33:25.193 INFO [stderr]    --> src/lib.rs:131:5
Dec 12 17:33:25.193 INFO [stderr]     |
Dec 12 17:33:25.193 INFO [stderr] 131 |     pub fn toggle_bit(target: &mut u8, pos: usize) {
Dec 12 17:33:25.193 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:33:25.193 INFO [stderr] 
Dec 12 17:33:25.541 INFO [stderr] warning: variable does not need to be mutable
Dec 12 17:33:25.541 INFO [stderr]    --> src/lib.rs:396:13
Dec 12 17:33:25.541 INFO [stderr]     |
Dec 12 17:33:25.541 INFO [stderr] 396 |         let mut storage = vec![0u8];
Dec 12 17:33:25.541 INFO [stderr]     |             ----^^^^^^^
Dec 12 17:33:25.541 INFO [stderr]     |             |
Dec 12 17:33:25.541 INFO [stderr]     |             help: remove this `mut`
Dec 12 17:33:25.541 INFO [stderr]     |
Dec 12 17:33:25.541 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 17:33:25.541 INFO [stderr] 
Dec 12 17:33:25.542 INFO [stderr] warning: function is never used: `byte_bit_offset`
Dec 12 17:33:25.542 INFO [stderr]    --> src/lib.rs:107:5
Dec 12 17:33:25.542 INFO [stderr]     |
Dec 12 17:33:25.542 INFO [stderr] 107 |     pub fn byte_bit_offset(idx: usize) -> (usize, usize) {
Dec 12 17:33:25.542 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:33:25.542 INFO [stderr]     |
Dec 12 17:33:25.542 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 17:33:25.542 INFO [stderr] 
Dec 12 17:33:25.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 12 17:33:25.592 INFO [stderr] su: No module specific data is present
Dec 12 17:33:26.074 INFO running `"docker" "inspect" "c76383aa91638f9b7901359c046fa61a546946bde001e0381c64b04ba3ab0739"`
Dec 12 17:33:26.516 INFO running `"docker" "rm" "-f" "c76383aa91638f9b7901359c046fa61a546946bde001e0381c64b04ba3ab0739"`
Dec 12 17:33:26.808 INFO [stdout] c76383aa91638f9b7901359c046fa61a546946bde001e0381c64b04ba3ab0739