[INFO] fetching crate async-channel 1.5.1...
[INFO] checking async-channel-1.5.1 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate async-channel 1.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async-channel 1.5.1 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6aab272b5e908f34a9830976e6a244974b8b33873ca13154d1580c6b2cb8b53b
[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" "6aab272b5e908f34a9830976e6a244974b8b33873ca13154d1580c6b2cb8b53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aab272b5e908f34a9830976e6a244974b8b33873ca13154d1580c6b2cb8b53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aab272b5e908f34a9830976e6a244974b8b33873ca13154d1580c6b2cb8b53b", kill_on_drop: false }`
[INFO] [stdout] 6aab272b5e908f34a9830976e6a244974b8b33873ca13154d1580c6b2cb8b53b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] 211bffd5eef10e9e5c826f19acb56a18150718e283c43cf9b8a2dd5bc5a17e53
[INFO] running `Command { std: "docker" "start" "-a" "211bffd5eef10e9e5c826f19acb56a18150718e283c43cf9b8a2dd5bc5a17e53", kill_on_drop: false }`
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking event-listener v2.5.1
[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 fastrand v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking once_cell v1.5.2
[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 v1.11.2
[INFO] [stderr]     Checking blocking v0.6.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.79s
[INFO] running `Command { std: "docker" "inspect" "211bffd5eef10e9e5c826f19acb56a18150718e283c43cf9b8a2dd5bc5a17e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211bffd5eef10e9e5c826f19acb56a18150718e283c43cf9b8a2dd5bc5a17e53", kill_on_drop: false }`
[INFO] [stdout] 211bffd5eef10e9e5c826f19acb56a18150718e283c43cf9b8a2dd5bc5a17e53