[INFO] fetching crate aktoro-flow-channel 0.0.0...
[INFO] checking aktoro-flow-channel-0.0.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate aktoro-flow-channel 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate aktoro-flow-channel 0.0.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aktoro-flow-channel 0.0.0
[INFO] finished tweaking crates.io crate aktoro-flow-channel 0.0.0
[INFO] tweaked toml for crates.io crate aktoro-flow-channel 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6506e128cc49202d32d2d7d9c347774ddae94babd2c3dc9f700fcad296241004
[INFO] running `Command { std: "docker" "start" "-a" "6506e128cc49202d32d2d7d9c347774ddae94babd2c3dc9f700fcad296241004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6506e128cc49202d32d2d7d9c347774ddae94babd2c3dc9f700fcad296241004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6506e128cc49202d32d2d7d9c347774ddae94babd2c3dc9f700fcad296241004", kill_on_drop: false }`
[INFO] [stdout] 6506e128cc49202d32d2d7d9c347774ddae94babd2c3dc9f700fcad296241004
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9af754c7eaf14b54ece1751a957d66101873de2d3f5dd015af5d23367b0669eb
[INFO] running `Command { std: "docker" "start" "-a" "9af754c7eaf14b54ece1751a957d66101873de2d3f5dd015af5d23367b0669eb", kill_on_drop: false }`
[INFO] [stderr]     Checking aktoro-flow-channel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "9af754c7eaf14b54ece1751a957d66101873de2d3f5dd015af5d23367b0669eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af754c7eaf14b54ece1751a957d66101873de2d3f5dd015af5d23367b0669eb", kill_on_drop: false }`
[INFO] [stdout] 9af754c7eaf14b54ece1751a957d66101873de2d3f5dd015af5d23367b0669eb