[INFO] cloning repository https://github.com/thoughtbot/complexity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thoughtbot/complexity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthoughtbot%2Fcomplexity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthoughtbot%2Fcomplexity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6f6f5ac8383bed796b763b754b4c9f393be432b
[INFO] checking thoughtbot/complexity against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthoughtbot%2Fcomplexity" "/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/thoughtbot/complexity on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thoughtbot/complexity
[INFO] finished tweaking git repo https://github.com/thoughtbot/complexity
[INFO] tweaked toml for git repo https://github.com/thoughtbot/complexity written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/thoughtbot/complexity already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca2a61961a952f699d10b407eb9999cece24b1c0a8f405c7a7578a3be5a9500b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca2a61961a952f699d10b407eb9999cece24b1c0a8f405c7a7578a3be5a9500b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca2a61961a952f699d10b407eb9999cece24b1c0a8f405c7a7578a3be5a9500b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca2a61961a952f699d10b407eb9999cece24b1c0a8f405c7a7578a3be5a9500b", kill_on_drop: false }`
[INFO] [stdout] ca2a61961a952f699d10b407eb9999cece24b1c0a8f405c7a7578a3be5a9500b
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed9ccb1b2a590812af09e3e3e3e7aac05a097dbe48589e143a3caede47129037
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed9ccb1b2a590812af09e3e3e3e7aac05a097dbe48589e143a3caede47129037", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking totems v0.2.7
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.18
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking mimalloc v0.1.22
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking complexity v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.51s
[INFO] running `Command { std: "docker" "inspect" "ed9ccb1b2a590812af09e3e3e3e7aac05a097dbe48589e143a3caede47129037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9ccb1b2a590812af09e3e3e3e7aac05a097dbe48589e143a3caede47129037", kill_on_drop: false }`
[INFO] [stdout] ed9ccb1b2a590812af09e3e3e3e7aac05a097dbe48589e143a3caede47129037