[INFO] fetching crate midir 0.7.0...
[INFO] checking midir-0.7.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate midir 0.7.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate midir 0.7.0 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate midir 0.7.0
[INFO] finished tweaking crates.io crate midir 0.7.0
[INFO] tweaked toml for crates.io crate midir 0.7.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate midir 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82470f40ea0a66cd36eae653998a9990348511c5263801986df1a0c23e83c6b0
[INFO] running `Command { std: "docker" "start" "-a" "82470f40ea0a66cd36eae653998a9990348511c5263801986df1a0c23e83c6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82470f40ea0a66cd36eae653998a9990348511c5263801986df1a0c23e83c6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82470f40ea0a66cd36eae653998a9990348511c5263801986df1a0c23e83c6b0", kill_on_drop: false }`
[INFO] [stdout] 82470f40ea0a66cd36eae653998a9990348511c5263801986df1a0c23e83c6b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a55930a3c6270df8f51793b1836c543b4dafa77434bfb4b862484fffed1ee53b
[INFO] running `Command { std: "docker" "start" "-a" "a55930a3c6270df8f51793b1836c543b4dafa77434bfb4b862484fffed1ee53b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking memalloc v0.1.0
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]     Checking alsa v0.4.2
[INFO] [stderr]     Checking midir v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.64s
[INFO] running `Command { std: "docker" "inspect" "a55930a3c6270df8f51793b1836c543b4dafa77434bfb4b862484fffed1ee53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55930a3c6270df8f51793b1836c543b4dafa77434bfb4b862484fffed1ee53b", kill_on_drop: false }`
[INFO] [stdout] a55930a3c6270df8f51793b1836c543b4dafa77434bfb4b862484fffed1ee53b