[INFO] cloning repository https://github.com/willm/synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willm/synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillm%2Fsynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillm%2Fsynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90117207ab0192906878880b03af91f753813d65
[INFO] testing willm/synth against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillm%2Fsynth" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willm/synth on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/willm/synth
[INFO] finished tweaking git repo https://github.com/willm/synth
[INFO] tweaked toml for git repo https://github.com/willm/synth written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/willm/synth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coremidi-sys v2.0.2
[INFO] [stderr]   Downloaded coremidi v0.4.0
[INFO] [stderr]   Downloaded midir v0.6.2
[INFO] [stderr]   Downloaded alsa v0.4.2
[INFO] [stderr]   Downloaded alsa v0.2.2
[INFO] [stderr]   Downloaded alsa-sys v0.3.0
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.5
[INFO] [stderr]   Downloaded memalloc v0.1.0
[INFO] [stderr]   Downloaded cpal v0.12.0
[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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d1e66ecee4c2e12ff8b8fcbab88f6a7668f23683b272b53b668bb8f8a5169c7
[INFO] running `Command { std: "docker" "start" "-a" "9d1e66ecee4c2e12ff8b8fcbab88f6a7668f23683b272b53b668bb8f8a5169c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d1e66ecee4c2e12ff8b8fcbab88f6a7668f23683b272b53b668bb8f8a5169c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1e66ecee4c2e12ff8b8fcbab88f6a7668f23683b272b53b668bb8f8a5169c7", kill_on_drop: false }`
[INFO] [stdout] 9d1e66ecee4c2e12ff8b8fcbab88f6a7668f23683b272b53b668bb8f8a5169c7
[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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a2e045a792bed83b715dab9868276b17ae446205584e345dad611076ebc5b5a
[INFO] running `Command { std: "docker" "start" "-a" "9a2e045a792bed83b715dab9868276b17ae446205584e345dad611076ebc5b5a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 `synth 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 v0.12.0`
[INFO] [stderr]     ... which satisfies dependency `cpal = "^0.12.0"` (locked to 0.12.0) of package `synth v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `alsa`
[INFO] running `Command { std: "docker" "inspect" "9a2e045a792bed83b715dab9868276b17ae446205584e345dad611076ebc5b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a2e045a792bed83b715dab9868276b17ae446205584e345dad611076ebc5b5a", kill_on_drop: false }`
[INFO] [stdout] 9a2e045a792bed83b715dab9868276b17ae446205584e345dad611076ebc5b5a