[INFO] cloning repository https://github.com/VikingPingvin/Rust_Synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VikingPingvin/Rust_Synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeff2ad0dc3376fbe22444f144c18ee9d91c4000
[INFO] checking VikingPingvin/Rust_Synth against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VikingPingvin/Rust_Synth on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VikingPingvin/Rust_Synth
[INFO] finished tweaking git repo https://github.com/VikingPingvin/Rust_Synth
[INFO] tweaked toml for git repo https://github.com/VikingPingvin/Rust_Synth written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/VikingPingvin/Rust_Synth 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ole32-sys v0.2.0
[INFO] [stderr]   Downloaded cpal v0.4.5
[INFO] [stderr]   Downloaded time v0.1.37
[INFO] [stderr]   Downloaded lazy_static v0.2.8
[INFO] [stderr]   Downloaded futures v0.1.13
[INFO] [stderr]   Downloaded coreaudio-sys v0.1.2
[INFO] [stderr]   Downloaded coreaudio-rs v0.6.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.17
[INFO] [stderr]   Downloaded libc v0.2.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f9247d58f9878c6cd2d97a6c0272b71c90b37f9fc1b27e72be99a16001da34c
[INFO] running `Command { std: "docker" "start" "-a" "4f9247d58f9878c6cd2d97a6c0272b71c90b37f9fc1b27e72be99a16001da34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f9247d58f9878c6cd2d97a6c0272b71c90b37f9fc1b27e72be99a16001da34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f9247d58f9878c6cd2d97a6c0272b71c90b37f9fc1b27e72be99a16001da34c", kill_on_drop: false }`
[INFO] [stdout] 4f9247d58f9878c6cd2d97a6c0272b71c90b37f9fc1b27e72be99a16001da34c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52f08ccbf3bb132dd6ffb5a4987e9cab5d69023eb355d47e6fe0995e2c84738b
[INFO] running `Command { std: "docker" "start" "-a" "52f08ccbf3bb132dd6ffb5a4987e9cab5d69023eb355d47e6fe0995e2c84738b", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking futures v0.1.13
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking synth v0.1.0 (/opt/rustwide/workdir/dependencies/synth)
[INFO] [stderr]     Checking notesender v0.1.0 (/opt/rustwide/workdir/dependencies/notesender)
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]     Checking cpal v0.4.5
[INFO] [stderr]     Checking synth_exec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "52f08ccbf3bb132dd6ffb5a4987e9cab5d69023eb355d47e6fe0995e2c84738b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f08ccbf3bb132dd6ffb5a4987e9cab5d69023eb355d47e6fe0995e2c84738b", kill_on_drop: false }`
[INFO] [stdout] 52f08ccbf3bb132dd6ffb5a4987e9cab5d69023eb355d47e6fe0995e2c84738b
[INFO] checking VikingPingvin/Rust_Synth against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VikingPingvin/Rust_Synth on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VikingPingvin/Rust_Synth
[INFO] finished tweaking git repo https://github.com/VikingPingvin/Rust_Synth
[INFO] tweaked toml for git repo https://github.com/VikingPingvin/Rust_Synth written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/VikingPingvin/Rust_Synth 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a02958ff6f0862131e92a9b439d39b349bdc16bb6d4a9602e81eaa8c75c75481
[INFO] running `Command { std: "docker" "start" "-a" "a02958ff6f0862131e92a9b439d39b349bdc16bb6d4a9602e81eaa8c75c75481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a02958ff6f0862131e92a9b439d39b349bdc16bb6d4a9602e81eaa8c75c75481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02958ff6f0862131e92a9b439d39b349bdc16bb6d4a9602e81eaa8c75c75481", kill_on_drop: false }`
[INFO] [stdout] a02958ff6f0862131e92a9b439d39b349bdc16bb6d4a9602e81eaa8c75c75481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 476aaca8a0da2c05af0e52cc7415f507630ca5e6951023f836e3b31094da76c4
[INFO] running `Command { std: "docker" "start" "-a" "476aaca8a0da2c05af0e52cc7415f507630ca5e6951023f836e3b31094da76c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking futures v0.1.13
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking notesender v0.1.0 (/opt/rustwide/workdir/dependencies/notesender)
[INFO] [stderr]     Checking synth v0.1.0 (/opt/rustwide/workdir/dependencies/synth)
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking cpal v0.4.5
[INFO] [stderr]     Checking synth_exec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "476aaca8a0da2c05af0e52cc7415f507630ca5e6951023f836e3b31094da76c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476aaca8a0da2c05af0e52cc7415f507630ca5e6951023f836e3b31094da76c4", kill_on_drop: false }`
[INFO] [stdout] 476aaca8a0da2c05af0e52cc7415f507630ca5e6951023f836e3b31094da76c4