[INFO] updating cached repository fenhl/dark-mode-firefox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fenhl/dark-mode-firefox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fenhl/dark-mode-firefox" "work/ex/beta-1.37-6/sources/1.36.0/gh/fenhl/dark-mode-firefox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/fenhl/dark-mode-firefox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fenhl/dark-mode-firefox" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fenhl/dark-mode-firefox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fenhl/dark-mode-firefox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84a38a6520ed68ef4bdcda3567f3f69af18b4b99
[INFO] sha for GitHub repo fenhl/dark-mode-firefox: 84a38a6520ed68ef4bdcda3567f3f69af18b4b99
[INFO] validating manifest of fenhl/dark-mode-firefox on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fenhl/dark-mode-firefox on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fenhl/dark-mode-firefox
[INFO] finished frobbing fenhl/dark-mode-firefox
[INFO] frobbed toml for fenhl/dark-mode-firefox written to work/ex/beta-1.37-6/sources/1.36.0/gh/fenhl/dark-mode-firefox/Cargo.toml
[INFO] started frobbing fenhl/dark-mode-firefox
[INFO] finished frobbing fenhl/dark-mode-firefox
[INFO] frobbed toml for fenhl/dark-mode-firefox written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fenhl/dark-mode-firefox/Cargo.toml
[INFO] crate fenhl/dark-mode-firefox already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fenhl/dark-mode-firefox against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fenhl/dark-mode-firefox:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8e107080b80790e4831b1751666d02eb418fd0c920e869bfa8b581323e5b760c
[INFO] running `"docker" "start" "-a" "8e107080b80790e4831b1751666d02eb418fd0c920e869bfa8b581323e5b760c"`
[INFO] [stderr]    Compiling backtrace v0.3.20
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling webextension-protocol v1.0.0 (https://github.com/fenhl/rust-webextension-protocol#fce3ba48)
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling dark-mode v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.51s
[INFO] running `"docker" "inspect" "8e107080b80790e4831b1751666d02eb418fd0c920e869bfa8b581323e5b760c"`
[INFO] running `"docker" "rm" "-f" "8e107080b80790e4831b1751666d02eb418fd0c920e869bfa8b581323e5b760c"`
[INFO] [stdout] 8e107080b80790e4831b1751666d02eb418fd0c920e869bfa8b581323e5b760c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fenhl/dark-mode-firefox:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b9ddebbddf9264014c2730645e7c9922d62195ae03cd4883c3ee5f123d50243
[INFO] running `"docker" "start" "-a" "4b9ddebbddf9264014c2730645e7c9922d62195ae03cd4883c3ee5f123d50243"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `"docker" "inspect" "4b9ddebbddf9264014c2730645e7c9922d62195ae03cd4883c3ee5f123d50243"`
[INFO] running `"docker" "rm" "-f" "4b9ddebbddf9264014c2730645e7c9922d62195ae03cd4883c3ee5f123d50243"`
[INFO] [stdout] 4b9ddebbddf9264014c2730645e7c9922d62195ae03cd4883c3ee5f123d50243
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fenhl/dark-mode-firefox:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 52c1c71bc2e3a3feb6d51859d458562049eeeaaf1cb5adaa3ee782db2881d82e
[INFO] running `"docker" "start" "-a" "52c1c71bc2e3a3feb6d51859d458562049eeeaaf1cb5adaa3ee782db2881d82e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `"docker" "inspect" "52c1c71bc2e3a3feb6d51859d458562049eeeaaf1cb5adaa3ee782db2881d82e"`
[INFO] running `"docker" "rm" "-f" "52c1c71bc2e3a3feb6d51859d458562049eeeaaf1cb5adaa3ee782db2881d82e"`
[INFO] [stdout] 52c1c71bc2e3a3feb6d51859d458562049eeeaaf1cb5adaa3ee782db2881d82e