[INFO] cloning repository https://github.com/jcswart/keep-trying
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jcswart/keep-trying" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcswart%2Fkeep-trying", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcswart%2Fkeep-trying'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3503567dcb2f33e0657dc381c097bdf0516b22f0
[INFO] checking jcswart/keep-trying against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcswart%2Fkeep-trying" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jcswart/keep-trying on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jcswart/keep-trying
[INFO] finished tweaking git repo https://github.com/jcswart/keep-trying
[INFO] tweaked toml for git repo https://github.com/jcswart/keep-trying written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jcswart/keep-trying already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded socket2 v0.3.3
[INFO] [stderr]   Downloaded miow v0.3.1
[INFO] [stderr]   Downloaded tokio-process v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f8ef66a220de2a9529982c34617efa1932cd60f00e6a86a7892827f5269232d
[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" "0f8ef66a220de2a9529982c34617efa1932cd60f00e6a86a7892827f5269232d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f8ef66a220de2a9529982c34617efa1932cd60f00e6a86a7892827f5269232d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f8ef66a220de2a9529982c34617efa1932cd60f00e6a86a7892827f5269232d", kill_on_drop: false }`
[INFO] [stdout] 0f8ef66a220de2a9529982c34617efa1932cd60f00e6a86a7892827f5269232d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0d6aca0235af147f171cb0db894177b4a0cb5d588bae2111e5fd0b1b7a0d694
[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" "c0d6aca0235af147f171cb0db894177b4a0cb5d588bae2111e5fd0b1b7a0d694", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.37
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking mio v0.6.13
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking tokio-signal v0.1.4
[INFO] [stderr]     Checking tokio-process v0.1.5
[INFO] [stderr]     Checking kt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.44s
[INFO] running `Command { std: "docker" "inspect" "c0d6aca0235af147f171cb0db894177b4a0cb5d588bae2111e5fd0b1b7a0d694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d6aca0235af147f171cb0db894177b4a0cb5d588bae2111e5fd0b1b7a0d694", kill_on_drop: false }`
[INFO] [stdout] c0d6aca0235af147f171cb0db894177b4a0cb5d588bae2111e5fd0b1b7a0d694