[INFO] fetching crate async-channel 1.6.1...
[INFO] checking async-channel-1.6.1 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate async-channel 1.6.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate async-channel 1.6.1 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-channel 1.6.1
[INFO] finished tweaking crates.io crate async-channel 1.6.1
[INFO] tweaked toml for crates.io crate async-channel 1.6.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fa7cc2042dce2825078f458985ad0dbc626338184836c813f6bb0677fb22f9b
[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" "2fa7cc2042dce2825078f458985ad0dbc626338184836c813f6bb0677fb22f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fa7cc2042dce2825078f458985ad0dbc626338184836c813f6bb0677fb22f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa7cc2042dce2825078f458985ad0dbc626338184836c813f6bb0677fb22f9b", kill_on_drop: false }`
[INFO] [stdout] 2fa7cc2042dce2825078f458985ad0dbc626338184836c813f6bb0677fb22f9b
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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] 146295e9457c65dc3388ffde6dd05ead2ae5066a7379214a5eb0acd19a1eb2af
[INFO] running `Command { std: "docker" "start" "-a" "146295e9457c65dc3388ffde6dd05ead2ae5066a7379214a5eb0acd19a1eb2af", kill_on_drop: false }`
[INFO] [stderr]     Checking easy-parallel v3.1.0
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking async-channel v1.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "146295e9457c65dc3388ffde6dd05ead2ae5066a7379214a5eb0acd19a1eb2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146295e9457c65dc3388ffde6dd05ead2ae5066a7379214a5eb0acd19a1eb2af", kill_on_drop: false }`
[INFO] [stdout] 146295e9457c65dc3388ffde6dd05ead2ae5066a7379214a5eb0acd19a1eb2af