[INFO] crate led_bargraph 0.2.1 is already in cache
[INFO] testing led_bargraph-0.2.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate led_bargraph 0.2.1 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate led_bargraph 0.2.1 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 led_bargraph 0.2.1
[INFO] finished tweaking crates.io crate led_bargraph 0.2.1
[INFO] tweaked toml for crates.io crate led_bargraph 0.2.1 written to work/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 127579766cf349d7768a584e446a44199f03f0dec09fd34770d2b1ee11f6fc3a
[INFO] running `"docker" "start" "-a" "127579766cf349d7768a584e446a44199f03f0dec09fd34770d2b1ee11f6fc3a"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling sysfs_gpio v0.5.4
[INFO] [stderr]    Compiling i2cdev v0.4.2
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling slog-scope v4.1.2
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling slog-stdlog v3.0.5
[INFO] [stderr]    Compiling ht16k33 v0.3.0
[INFO] [stderr]    Compiling slog-term v2.4.1
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling linux-embedded-hal v0.2.2
[INFO] [stderr]    Compiling led_bargraph v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:477:17
[INFO] [stderr]     |
[INFO] [stderr] 477 |             let mut color = match led {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 17.71s
[INFO] running `"docker" "inspect" "127579766cf349d7768a584e446a44199f03f0dec09fd34770d2b1ee11f6fc3a"`
[INFO] running `"docker" "rm" "-f" "127579766cf349d7768a584e446a44199f03f0dec09fd34770d2b1ee11f6fc3a"`
[INFO] [stdout] 127579766cf349d7768a584e446a44199f03f0dec09fd34770d2b1ee11f6fc3a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 9d395bee6e9b59b85df0a81248f0a669135e34d1ad6e04a742cb073d75b15348
[INFO] running `"docker" "start" "-a" "9d395bee6e9b59b85df0a81248f0a669135e34d1ad6e04a742cb073d75b15348"`
[INFO] [stderr]    Compiling led_bargraph v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:477:17
[INFO] [stderr]     |
[INFO] [stderr] 477 |             let mut color = match led {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "9d395bee6e9b59b85df0a81248f0a669135e34d1ad6e04a742cb073d75b15348"`
[INFO] running `"docker" "rm" "-f" "9d395bee6e9b59b85df0a81248f0a669135e34d1ad6e04a742cb073d75b15348"`
[INFO] [stdout] 9d395bee6e9b59b85df0a81248f0a669135e34d1ad6e04a742cb073d75b15348
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 00f84c01005682afbfcbbd3cbbae52316780ecb055129cb442f4e5845a09023f
[INFO] running `"docker" "start" "-a" "00f84c01005682afbfcbbd3cbbae52316780ecb055129cb442f4e5845a09023f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/led_bargraph-2589c6da0a0ecf81
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::initialize ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::set_blink ... ok
[INFO] [stdout] test tests::update ... ok
[INFO] [stdout] test tests::show ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/led_bargraph-08cb37437c99354e
[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] [stderr]    Doc-tests led_bargraph
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Bargraph<I2C>::new (line 66) ... ok
[INFO] [stdout] test src/lib.rs - Bargraph<I2C>::set_blink (line 230) ... ok
[INFO] [stdout] test src/lib.rs - Bargraph<I2C>::clear (line 138) ... ok
[INFO] [stdout] test src/lib.rs - Bargraph<I2C>::initialize (line 110) ... ok
[INFO] [stdout] test src/lib.rs - Bargraph<I2C>::show (line 259) ... ok
[INFO] [stdout] test src/lib.rs - Bargraph<I2C>::update (line 176) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "00f84c01005682afbfcbbd3cbbae52316780ecb055129cb442f4e5845a09023f"`
[INFO] running `"docker" "rm" "-f" "00f84c01005682afbfcbbd3cbbae52316780ecb055129cb442f4e5845a09023f"`
[INFO] [stdout] 00f84c01005682afbfcbbd3cbbae52316780ecb055129cb442f4e5845a09023f