[INFO] crate bitfields 0.2.0 is already in cache
[INFO] testing bitfields-0.2.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate bitfields 0.2.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate bitfields 0.2.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bitfields 0.2.0
[INFO] finished tweaking crates.io crate bitfields 0.2.0
[INFO] tweaked toml for crates.io crate bitfields 0.2.0 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] db487effeb9121b84d06569498b887e0f8aa41f2c72039f600771be39be47a0b
[INFO] running `"docker" "start" "-a" "db487effeb9121b84d06569498b887e0f8aa41f2c72039f600771be39be47a0b"`
[INFO] [stderr]    Compiling bitfields v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `byte_bit_offset`
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn byte_bit_offset(idx: usize) -> (usize, usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_bit`
[INFO] [stderr]    --> src/lib.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn test_bit(target: &u8, pos: usize) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_bit`
[INFO] [stderr]    --> src/lib.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn set_bit(target: &mut u8, pos: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unset_bit`
[INFO] [stderr]    --> src/lib.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn unset_bit(target: &mut u8, pos: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `toggle_bit`
[INFO] [stderr]    --> src/lib.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn toggle_bit(target: &mut u8, pos: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "db487effeb9121b84d06569498b887e0f8aa41f2c72039f600771be39be47a0b"`
[INFO] running `"docker" "rm" "-f" "db487effeb9121b84d06569498b887e0f8aa41f2c72039f600771be39be47a0b"`
[INFO] [stdout] db487effeb9121b84d06569498b887e0f8aa41f2c72039f600771be39be47a0b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] cec31c6b422c5f0c897d03586bd93bca1cf24d46df272669185633a25bca8736
[INFO] running `"docker" "start" "-a" "cec31c6b422c5f0c897d03586bd93bca1cf24d46df272669185633a25bca8736"`
[INFO] [stderr]    Compiling bitfields v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:394:13
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let mut storage = vec![0u8];
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `byte_bit_offset`
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn byte_bit_offset(idx: usize) -> (usize, usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "cec31c6b422c5f0c897d03586bd93bca1cf24d46df272669185633a25bca8736"`
[INFO] running `"docker" "rm" "-f" "cec31c6b422c5f0c897d03586bd93bca1cf24d46df272669185633a25bca8736"`
[INFO] [stdout] cec31c6b422c5f0c897d03586bd93bca1cf24d46df272669185633a25bca8736
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 30e3c98f75a011302faf0efda6ee03a943eec2560decbcc54eb06c6307c7ae80
[INFO] running `"docker" "start" "-a" "30e3c98f75a011302faf0efda6ee03a943eec2560decbcc54eb06c6307c7ae80"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bitfields-4ef567c669cffe67
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test bit_twiddles::twiddle_tests::get ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::set ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::set_to ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::test ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::unset ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::toggle ... ok
[INFO] [stdout] test tests::corrupted_read ... ok
[INFO] [stdout] test tests::overwrite ... ok
[INFO] [stdout] test tests::invalid_field ... ok
[INFO] [stdout] test tests::store_and_retrieve ... ok
[INFO] [stdout] test tests::store_too_wide ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::set_to_with_large_pos ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::unset_with_large_pos ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::toggle_with_large_pos ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::set_with_large_pos ... ok
[INFO] [stdout] test bit_twiddles::twiddle_tests::get_with_large_pos ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bitfields
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "30e3c98f75a011302faf0efda6ee03a943eec2560decbcc54eb06c6307c7ae80"`
[INFO] running `"docker" "rm" "-f" "30e3c98f75a011302faf0efda6ee03a943eec2560decbcc54eb06c6307c7ae80"`
[INFO] [stdout] 30e3c98f75a011302faf0efda6ee03a943eec2560decbcc54eb06c6307c7ae80