[INFO] fetching crate async-channel 1.5.1...
[INFO] checking async-channel-1.5.1 against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] extracting crate async-channel 1.5.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate async-channel 1.5.1 on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-channel 1.5.1
[INFO] finished tweaking crates.io crate async-channel 1.5.1
[INFO] tweaked toml for crates.io crate async-channel 1.5.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c888fbd5d909d437f23f03930089eb3becf51b7afd3dd9538aac32eb2c8bd5b7
[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" "c888fbd5d909d437f23f03930089eb3becf51b7afd3dd9538aac32eb2c8bd5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c888fbd5d909d437f23f03930089eb3becf51b7afd3dd9538aac32eb2c8bd5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c888fbd5d909d437f23f03930089eb3becf51b7afd3dd9538aac32eb2c8bd5b7", kill_on_drop: false }`
[INFO] [stdout] c888fbd5d909d437f23f03930089eb3becf51b7afd3dd9538aac32eb2c8bd5b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b31f9ca966c50b4d564d9ac6f9673803a67d0e9e199a72780ea2bcf28627cbbb
[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" "b31f9ca966c50b4d564d9ac6f9673803a67d0e9e199a72780ea2bcf28627cbbb", kill_on_drop: false }`
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking easy-parallel v3.1.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking async-channel v1.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking blocking v0.6.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.16s
[INFO] running `Command { std: "docker" "inspect" "b31f9ca966c50b4d564d9ac6f9673803a67d0e9e199a72780ea2bcf28627cbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31f9ca966c50b4d564d9ac6f9673803a67d0e9e199a72780ea2bcf28627cbbb", kill_on_drop: false }`
[INFO] [stdout] b31f9ca966c50b4d564d9ac6f9673803a67d0e9e199a72780ea2bcf28627cbbb