[INFO] updating cached repository lucasweiblen/bluetooth-switcher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lucasweiblen/bluetooth-switcher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lucasweiblen/bluetooth-switcher" "work/ex/beta-1.38-1/sources/1.37.0/gh/lucasweiblen/bluetooth-switcher"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lucasweiblen/bluetooth-switcher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lucasweiblen/bluetooth-switcher" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lucasweiblen/bluetooth-switcher"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lucasweiblen/bluetooth-switcher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6739442e2cb52a36aba8509c07e8fc5a12213eb7
[INFO] sha for GitHub repo lucasweiblen/bluetooth-switcher: 6739442e2cb52a36aba8509c07e8fc5a12213eb7
[INFO] validating manifest of lucasweiblen/bluetooth-switcher on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lucasweiblen/bluetooth-switcher on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lucasweiblen/bluetooth-switcher
[INFO] finished frobbing lucasweiblen/bluetooth-switcher
[INFO] frobbed toml for lucasweiblen/bluetooth-switcher written to work/ex/beta-1.38-1/sources/1.37.0/gh/lucasweiblen/bluetooth-switcher/Cargo.toml
[INFO] started frobbing lucasweiblen/bluetooth-switcher
[INFO] finished frobbing lucasweiblen/bluetooth-switcher
[INFO] frobbed toml for lucasweiblen/bluetooth-switcher written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lucasweiblen/bluetooth-switcher/Cargo.toml
[INFO] crate lucasweiblen/bluetooth-switcher already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lucasweiblen/bluetooth-switcher against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lucasweiblen/bluetooth-switcher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 1f2813635ad9934d4d5ca936af665b7313c66dd3fa213fc91ce68c9acec8c886
[INFO] running `"docker" "start" "-a" "1f2813635ad9934d4d5ca936af665b7313c66dd3fa213fc91ce68c9acec8c886"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]    Compiling pipers v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling bluetooth-switcher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::process::Command`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::Command;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.91s
[INFO] running `"docker" "inspect" "1f2813635ad9934d4d5ca936af665b7313c66dd3fa213fc91ce68c9acec8c886"`
[INFO] running `"docker" "rm" "-f" "1f2813635ad9934d4d5ca936af665b7313c66dd3fa213fc91ce68c9acec8c886"`
[INFO] [stdout] 1f2813635ad9934d4d5ca936af665b7313c66dd3fa213fc91ce68c9acec8c886
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lucasweiblen/bluetooth-switcher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a34aa96d91f2b8373d758734c152eed5281d4191323e8ca09f1d3349c781764e
[INFO] running `"docker" "start" "-a" "a34aa96d91f2b8373d758734c152eed5281d4191323e8ca09f1d3349c781764e"`
[INFO] [stderr]    Compiling bluetooth-switcher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::process::Command`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::Command;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "a34aa96d91f2b8373d758734c152eed5281d4191323e8ca09f1d3349c781764e"`
[INFO] running `"docker" "rm" "-f" "a34aa96d91f2b8373d758734c152eed5281d4191323e8ca09f1d3349c781764e"`
[INFO] [stdout] a34aa96d91f2b8373d758734c152eed5281d4191323e8ca09f1d3349c781764e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lucasweiblen/bluetooth-switcher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 76e671de5511d518311c94e4826d5bd6440698ef09a298d2c91db6692093ec92
[INFO] running `"docker" "start" "-a" "76e671de5511d518311c94e4826d5bd6440698ef09a298d2c91db6692093ec92"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bluetooth_switcher-17e75a77beaabfa4
[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" "76e671de5511d518311c94e4826d5bd6440698ef09a298d2c91db6692093ec92"`
[INFO] running `"docker" "rm" "-f" "76e671de5511d518311c94e4826d5bd6440698ef09a298d2c91db6692093ec92"`
[INFO] [stdout] 76e671de5511d518311c94e4826d5bd6440698ef09a298d2c91db6692093ec92