[INFO] cloning repository https://github.com/alexcrichton/rust-ci-timing-tracker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexcrichton/rust-ci-timing-tracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-ci-timing-tracker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-ci-timing-tracker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff5862f472483b243cbf5094461f549efaf1a9f5
[INFO] checking alexcrichton/rust-ci-timing-tracker against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Frust-ci-timing-tracker" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexcrichton/rust-ci-timing-tracker on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexcrichton/rust-ci-timing-tracker
[INFO] finished tweaking git repo https://github.com/alexcrichton/rust-ci-timing-tracker
[INFO] tweaked toml for git repo https://github.com/alexcrichton/rust-ci-timing-tracker written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/alexcrichton/rust-ci-timing-tracker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57047e53109eef8aae725817b2aca848f14af16d88716f7daf796bfc6b181b5b
[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" "57047e53109eef8aae725817b2aca848f14af16d88716f7daf796bfc6b181b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57047e53109eef8aae725817b2aca848f14af16d88716f7daf796bfc6b181b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57047e53109eef8aae725817b2aca848f14af16d88716f7daf796bfc6b181b5b", kill_on_drop: false }`
[INFO] [stdout] 57047e53109eef8aae725817b2aca848f14af16d88716f7daf796bfc6b181b5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16171a9ccb6cc06b6bfae4efb474dede9976c220480dcd4265ed199a99bfe174
[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" "16171a9ccb6cc06b6bfae4efb474dede9976c220480dcd4265ed199a99bfe174", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.59s
[INFO] running `Command { std: "docker" "inspect" "16171a9ccb6cc06b6bfae4efb474dede9976c220480dcd4265ed199a99bfe174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16171a9ccb6cc06b6bfae4efb474dede9976c220480dcd4265ed199a99bfe174", kill_on_drop: false }`
[INFO] [stdout] 16171a9ccb6cc06b6bfae4efb474dede9976c220480dcd4265ed199a99bfe174