[INFO] cloning repository https://github.com/mexus/cancellable-read
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mexus/cancellable-read" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmexus%2Fcancellable-read", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmexus%2Fcancellable-read'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62743a48d5b3fa161fc753481fb27d0d78b14aaf
[INFO] checking mexus/cancellable-read against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmexus%2Fcancellable-read" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mexus/cancellable-read on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mexus/cancellable-read
[INFO] finished tweaking git repo https://github.com/mexus/cancellable-read
[INFO] tweaked toml for git repo https://github.com/mexus/cancellable-read written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mexus/cancellable-read already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slab v0.3.0
[INFO] [stderr]   Downloaded net2 v0.2.32
[INFO] [stderr]   Downloaded bytes v0.4.6
[INFO] [stderr]   Downloaded futures v0.1.18
[INFO] [stderr]   Downloaded mio v0.6.13
[INFO] [stderr]   Downloaded tokio-signal v0.1.4
[INFO] [stderr]   Downloaded libc v0.2.37
[INFO] [stderr]   Downloaded scoped-tls v0.1.0
[INFO] [stderr]   Downloaded tokio-io v0.1.5
[INFO] [stderr]   Downloaded log v0.4.1
[INFO] [stderr]   Downloaded mio-uds v0.6.4
[INFO] [stderr]   Downloaded lazycell v0.6.0
[INFO] [stderr]   Downloaded slab v0.4.0
[INFO] [stderr]   Downloaded tokio-core v0.1.12
[INFO] [stderr]   Downloaded tokio-stdin-stdout v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cee48320a33e36f771cf540aed8a9c1a16efc6baa008c3f8dc3080e5bc5f04bd
[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" "cee48320a33e36f771cf540aed8a9c1a16efc6baa008c3f8dc3080e5bc5f04bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cee48320a33e36f771cf540aed8a9c1a16efc6baa008c3f8dc3080e5bc5f04bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee48320a33e36f771cf540aed8a9c1a16efc6baa008c3f8dc3080e5bc5f04bd", kill_on_drop: false }`
[INFO] [stdout] cee48320a33e36f771cf540aed8a9c1a16efc6baa008c3f8dc3080e5bc5f04bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 962a842b99db8642047ac8e2e3c28a7d49613395547a827239ad1f8e7d5f8a96
[INFO] running `Command { std: "docker" "start" "-a" "962a842b99db8642047ac8e2e3c28a7d49613395547a827239ad1f8e7d5f8a96", kill_on_drop: false }`
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking tokio-stdin-stdout v0.1.1
[INFO] [stderr]     Checking tokio-signal v0.1.4
[INFO] [stderr]     Checking async-stdio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "962a842b99db8642047ac8e2e3c28a7d49613395547a827239ad1f8e7d5f8a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "962a842b99db8642047ac8e2e3c28a7d49613395547a827239ad1f8e7d5f8a96", kill_on_drop: false }`
[INFO] [stdout] 962a842b99db8642047ac8e2e3c28a7d49613395547a827239ad1f8e7d5f8a96