[INFO] cloning repository https://github.com/dctucker/feosynth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dctucker/feosynth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdctucker%2Ffeosynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdctucker%2Ffeosynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a6bc81a7e1c352d0b963270c4f99a34cc0cb242
[INFO] checking dctucker/feosynth against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdctucker%2Ffeosynth" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dctucker/feosynth on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dctucker/feosynth
[INFO] finished tweaking git repo https://github.com/dctucker/feosynth
[INFO] tweaked toml for git repo https://github.com/dctucker/feosynth written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dctucker/feosynth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.3.1
[INFO] [stderr]   Downloaded cpal v0.12.1
[INFO] [stderr]   Downloaded alsa v0.2.2
[INFO] [stderr]   Downloaded midir v0.6.2
[INFO] [stderr]   Downloaded alsa-sys v0.3.0
[INFO] [stderr]   Downloaded midi v0.1.0
[INFO] [stderr]   Downloaded asio-sys v0.2.0
[INFO] [stderr]   Downloaded midistream v0.1.0
[INFO] [stderr]   Downloaded alsa v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bf25ff0a65996ea51074c61726d30a4f859d7470933d569933a6f22d4ec9fc2
[INFO] running `Command { std: "docker" "start" "-a" "6bf25ff0a65996ea51074c61726d30a4f859d7470933d569933a6f22d4ec9fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf25ff0a65996ea51074c61726d30a4f859d7470933d569933a6f22d4ec9fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf25ff0a65996ea51074c61726d30a4f859d7470933d569933a6f22d4ec9fc2", kill_on_drop: false }`
[INFO] [stdout] 6bf25ff0a65996ea51074c61726d30a4f859d7470933d569933a6f22d4ec9fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e1d32ec966bf8b44f9d7a1b00f4bb39c1f1f01022e3491556719ba0bbbfc837
[INFO] running `Command { std: "docker" "start" "-a" "4e1d32ec966bf8b44f9d7a1b00f4bb39c1f1f01022e3491556719ba0bbbfc837", kill_on_drop: false }`
[INFO] [stderr] error: multiple packages link to native library `alsa`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `alsa-sys v0.1.2`
[INFO] [stderr]     ... which is depended on by `alsa v0.2.2`
[INFO] [stderr]     ... which is depended on by `midir v0.6.2`
[INFO] [stderr]     ... which is depended on by `feosynth v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `alsa`
[INFO] [stderr] 
[INFO] [stderr] package `alsa-sys v0.3.0`
[INFO] [stderr]     ... which is depended on by `alsa v0.4.2`
[INFO] [stderr]     ... which is depended on by `cpal v0.12.1`
[INFO] [stderr]     ... which is depended on by `feosynth v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `alsa`
[INFO] running `Command { std: "docker" "inspect" "4e1d32ec966bf8b44f9d7a1b00f4bb39c1f1f01022e3491556719ba0bbbfc837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e1d32ec966bf8b44f9d7a1b00f4bb39c1f1f01022e3491556719ba0bbbfc837", kill_on_drop: false }`
[INFO] [stdout] 4e1d32ec966bf8b44f9d7a1b00f4bb39c1f1f01022e3491556719ba0bbbfc837