[INFO] cloning repository https://github.com/fenhl/dark-mode-firefox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fenhl/dark-mode-firefox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffenhl%2Fdark-mode-firefox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffenhl%2Fdark-mode-firefox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84a38a6520ed68ef4bdcda3567f3f69af18b4b99
[INFO] checking fenhl/dark-mode-firefox against try#7306d3110618f84a6a4662b9e2cc4fd0d9b02da8 for pr-97346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffenhl%2Fdark-mode-firefox" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fenhl/dark-mode-firefox on toolchain 7306d3110618f84a6a4662b9e2cc4fd0d9b02da8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-10/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58276b530e5dc19981618953d6f1880b26e937e03f888c3b3a23905ff89fd250
[INFO] running `Command { std: "docker" "start" "-a" "58276b530e5dc19981618953d6f1880b26e937e03f888c3b3a23905ff89fd250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58276b530e5dc19981618953d6f1880b26e937e03f888c3b3a23905ff89fd250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58276b530e5dc19981618953d6f1880b26e937e03f888c3b3a23905ff89fd250", kill_on_drop: false }`
[INFO] [stdout] 58276b530e5dc19981618953d6f1880b26e937e03f888c3b3a23905ff89fd250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78af2dd2e19c31c6f66e94085aa5e9a970b77f6303f12959b963f02242b9813d
[INFO] running `Command { std: "docker" "start" "-a" "78af2dd2e19c31c6f66e94085aa5e9a970b77f6303f12959b963f02242b9813d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling backtrace v0.3.20
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking webextension-protocol v1.0.0 (https://github.com/fenhl/rust-webextension-protocol#fce3ba48)
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]     Checking dark-mode v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.43s
[INFO] running `Command { std: "docker" "inspect" "78af2dd2e19c31c6f66e94085aa5e9a970b77f6303f12959b963f02242b9813d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78af2dd2e19c31c6f66e94085aa5e9a970b77f6303f12959b963f02242b9813d", kill_on_drop: false }`
[INFO] [stdout] 78af2dd2e19c31c6f66e94085aa5e9a970b77f6303f12959b963f02242b9813d