[INFO] cloning repository https://github.com/holsee/rust_fas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/holsee/rust_fas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholsee%2Frust_fas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholsee%2Frust_fas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9470500964d566ab5838c0fcaf43b1450c7f8646
[INFO] checking holsee/rust_fas against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholsee%2Frust_fas" "/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/holsee/rust_fas on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/holsee/rust_fas
[INFO] finished tweaking git repo https://github.com/holsee/rust_fas
[INFO] tweaked toml for git repo https://github.com/holsee/rust_fas written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/holsee/rust_fas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b78866999ded1a6b248f621dae1e332f03e99d96ccfbb2a8f7f49324d426c8d
[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" "2b78866999ded1a6b248f621dae1e332f03e99d96ccfbb2a8f7f49324d426c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b78866999ded1a6b248f621dae1e332f03e99d96ccfbb2a8f7f49324d426c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b78866999ded1a6b248f621dae1e332f03e99d96ccfbb2a8f7f49324d426c8d", kill_on_drop: false }`
[INFO] [stdout] 2b78866999ded1a6b248f621dae1e332f03e99d96ccfbb2a8f7f49324d426c8d
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ed48c688552733867d2725e02e3814d4bf3544f979e59b963bd483f1bca95a
[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" "f4ed48c688552733867d2725e02e3814d4bf3544f979e59b963bd483f1bca95a", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.13
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking tokio-timer v0.1.1
[INFO] [stderr]     Checking futures-cpupool v0.1.5
[INFO] [stderr]     Checking prime_time v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "f4ed48c688552733867d2725e02e3814d4bf3544f979e59b963bd483f1bca95a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ed48c688552733867d2725e02e3814d4bf3544f979e59b963bd483f1bca95a", kill_on_drop: false }`
[INFO] [stdout] f4ed48c688552733867d2725e02e3814d4bf3544f979e59b963bd483f1bca95a