[INFO] updating cached repository https://github.com/fenhl/dark-mode-firefox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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 master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffenhl%2Fdark-mode-firefox" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fenhl/dark-mode-firefox on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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 /workspace/builds/worker-0/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 `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stdout] 8ab7bcd374aeab83bb44587ff23f7e0bc21174c50b3727e27bdeebc9e0800d01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8ab7bcd374aeab83bb44587ff23f7e0bc21174c50b3727e27bdeebc9e0800d01"`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.14
[INFO] [stderr]    Compiling backtrace v0.3.20
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling webextension-protocol v1.0.0 (https://github.com/fenhl/rust-webextension-protocol#fce3ba48)
[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 42.86s
[INFO] running `"docker" "inspect" "8ab7bcd374aeab83bb44587ff23f7e0bc21174c50b3727e27bdeebc9e0800d01"`
[INFO] running `"docker" "rm" "-f" "8ab7bcd374aeab83bb44587ff23f7e0bc21174c50b3727e27bdeebc9e0800d01"`
[INFO] [stdout] 8ab7bcd374aeab83bb44587ff23f7e0bc21174c50b3727e27bdeebc9e0800d01
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a40fe7cd278ad9d0ec124de623da06c5c5a55dd9a842abef12d7e3023307c4c7
[INFO] running `"docker" "start" "-a" "a40fe7cd278ad9d0ec124de623da06c5c5a55dd9a842abef12d7e3023307c4c7"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `"docker" "inspect" "a40fe7cd278ad9d0ec124de623da06c5c5a55dd9a842abef12d7e3023307c4c7"`
[INFO] running `"docker" "rm" "-f" "a40fe7cd278ad9d0ec124de623da06c5c5a55dd9a842abef12d7e3023307c4c7"`
[INFO] [stdout] a40fe7cd278ad9d0ec124de623da06c5c5a55dd9a842abef12d7e3023307c4c7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stdout] 2cf6cab0bb168473850067ad50aa20382855bc95ddf85666eaec71cc9ce4cda7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2cf6cab0bb168473850067ad50aa20382855bc95ddf85666eaec71cc9ce4cda7"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `"docker" "inspect" "2cf6cab0bb168473850067ad50aa20382855bc95ddf85666eaec71cc9ce4cda7"`
[INFO] running `"docker" "rm" "-f" "2cf6cab0bb168473850067ad50aa20382855bc95ddf85666eaec71cc9ce4cda7"`
[INFO] [stdout] 2cf6cab0bb168473850067ad50aa20382855bc95ddf85666eaec71cc9ce4cda7