[INFO] updating cached repository https://github.com/fenhl/dark-mode-firefox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84a38a6520ed68ef4bdcda3567f3f69af18b4b99
[INFO] testing fenhl/dark-mode-firefox against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffenhl%2Fdark-mode-firefox" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fenhl/dark-mode-firefox on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fenhl/dark-mode-firefox
[INFO] finished tweaking git repo https://github.com/fenhl/dark-mode-firefox
[INFO] tweaked toml for git repo https://github.com/fenhl/dark-mode-firefox written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/fenhl/dark-mode-firefox already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5939173a322a0888df76f03df2fb112cc0d9a21863a0603c8492bdefc5d66bdc
[INFO] running `"docker" "start" "-a" "5939173a322a0888df76f03df2fb112cc0d9a21863a0603c8492bdefc5d66bdc"`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling rustc-demangle v0.1.14
[INFO] [stderr]    Compiling backtrace v0.3.20
[INFO] [stderr]    Compiling webextension-protocol v1.0.0 (https://github.com/fenhl/rust-webextension-protocol#fce3ba48)
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling dark-mode v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.01s
[INFO] running `"docker" "inspect" "5939173a322a0888df76f03df2fb112cc0d9a21863a0603c8492bdefc5d66bdc"`
[INFO] running `"docker" "rm" "-f" "5939173a322a0888df76f03df2fb112cc0d9a21863a0603c8492bdefc5d66bdc"`
[INFO] [stdout] 5939173a322a0888df76f03df2fb112cc0d9a21863a0603c8492bdefc5d66bdc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 28231882a7fafcddd9793b394bd7f7a78641732d415e1c93ee80e7dca4c43a2a
[INFO] running `"docker" "start" "-a" "28231882a7fafcddd9793b394bd7f7a78641732d415e1c93ee80e7dca4c43a2a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `"docker" "inspect" "28231882a7fafcddd9793b394bd7f7a78641732d415e1c93ee80e7dca4c43a2a"`
[INFO] running `"docker" "rm" "-f" "28231882a7fafcddd9793b394bd7f7a78641732d415e1c93ee80e7dca4c43a2a"`
[INFO] [stdout] 28231882a7fafcddd9793b394bd7f7a78641732d415e1c93ee80e7dca4c43a2a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 735d9ef4c4f673ff2c83d08f543f6776f5409a319d22a91bdede99c53f9f5c17
[INFO] running `"docker" "start" "-a" "735d9ef4c4f673ff2c83d08f543f6776f5409a319d22a91bdede99c53f9f5c17"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `"docker" "inspect" "735d9ef4c4f673ff2c83d08f543f6776f5409a319d22a91bdede99c53f9f5c17"`
[INFO] running `"docker" "rm" "-f" "735d9ef4c4f673ff2c83d08f543f6776f5409a319d22a91bdede99c53f9f5c17"`
[INFO] [stdout] 735d9ef4c4f673ff2c83d08f543f6776f5409a319d22a91bdede99c53f9f5c17