[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#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdctucker%2Ffeosynth" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dctucker/feosynth on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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-5-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded midi v0.1.0
[INFO] [stderr]   Downloaded midir v0.6.2
[INFO] [stderr]   Downloaded alsa v0.2.2
[INFO] [stderr]   Downloaded coremidi-sys v2.0.2
[INFO] [stderr]   Downloaded cpal v0.12.1
[INFO] [stderr]   Downloaded midistream v0.1.0
[INFO] [stderr]   Downloaded asio-sys v0.2.0
[INFO] [stderr]   Downloaded coremidi v0.4.0
[INFO] [stderr]   Downloaded alsa v0.4.2
[INFO] [stderr]   Downloaded num-derive v0.3.1
[INFO] [stderr]   Downloaded clap v2.33.2
[INFO] [stderr]   Downloaded bindgen v0.54.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e570d5e13d21eed21dad392d3a1c46352cf5eded9c2cb31f0006390d395cb9b9
[INFO] running `Command { std: "docker" "start" "-a" "e570d5e13d21eed21dad392d3a1c46352cf5eded9c2cb31f0006390d395cb9b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e570d5e13d21eed21dad392d3a1c46352cf5eded9c2cb31f0006390d395cb9b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e570d5e13d21eed21dad392d3a1c46352cf5eded9c2cb31f0006390d395cb9b9", kill_on_drop: false }`
[INFO] [stdout] e570d5e13d21eed21dad392d3a1c46352cf5eded9c2cb31f0006390d395cb9b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ff24b256575e8efe4b86faea3fd6516fce64f7d9ed2d5ead6f46fb404401224
[INFO] running `Command { std: "docker" "start" "-a" "6ff24b256575e8efe4b86faea3fd6516fce64f7d9ed2d5ead6f46fb404401224", 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 satisfies dependency `alsa-sys = "^0.1.1"` (locked to 0.1.2) of package `alsa v0.2.2`
[INFO] [stderr]     ... which satisfies dependency `alsa = "^0.2"` (locked to 0.2.2) of package `midir v0.6.2`
[INFO] [stderr]     ... which satisfies dependency `midir = "^0.6.2"` (locked to 0.6.2) of package `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 satisfies dependency `alsa-sys = "^0.3.0"` (locked to 0.3.0) of package `alsa v0.4.2`
[INFO] [stderr]     ... which satisfies dependency `alsa = "^0.4.1"` (locked to 0.4.2) of package `cpal v0.12.1`
[INFO] [stderr]     ... which satisfies dependency `cpal = "^0.12.1"` (locked to 0.12.1) of package `feosynth v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `alsa`
[INFO] running `Command { std: "docker" "inspect" "6ff24b256575e8efe4b86faea3fd6516fce64f7d9ed2d5ead6f46fb404401224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff24b256575e8efe4b86faea3fd6516fce64f7d9ed2d5ead6f46fb404401224", kill_on_drop: false }`
[INFO] [stdout] 6ff24b256575e8efe4b86faea3fd6516fce64f7d9ed2d5ead6f46fb404401224