[INFO] fetching crate audio_thread_priority 0.34.0...
[INFO] checking audio_thread_priority-0.34.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate audio_thread_priority 0.34.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate audio_thread_priority 0.34.0
[INFO] finished tweaking crates.io crate audio_thread_priority 0.34.0
[INFO] tweaked toml for crates.io crate audio_thread_priority 0.34.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate audio_thread_priority 0.34.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate audio_thread_priority 0.34.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bb48c6e91dae34287842f6ef8df63e5439f83d4f9d99a91f34688e1d06a858c
[INFO] running `Command { std: "docker" "start" "-a" "4bb48c6e91dae34287842f6ef8df63e5439f83d4f9d99a91f34688e1d06a858c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb48c6e91dae34287842f6ef8df63e5439f83d4f9d99a91f34688e1d06a858c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb48c6e91dae34287842f6ef8df63e5439f83d4f9d99a91f34688e1d06a858c", kill_on_drop: false }`
[INFO] [stdout] 4bb48c6e91dae34287842f6ef8df63e5439f83d4f9d99a91f34688e1d06a858c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b8e3e4c64b599028394554a6a04c054cdd6fb41c80b4a7e6462f1770b4a0e46
[INFO] running `Command { std: "docker" "start" "-a" "5b8e3e4c64b599028394554a6a04c054cdd6fb41c80b4a7e6462f1770b4a0e46", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling libdbus-sys v0.1.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking dbus v0.6.4
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking audio_thread_priority v0.34.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/rt_linux.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 |           rlim_cur: request
[INFO] [stdout]     |  ___________________^
[INFO] [stdout] 160 | |             .try_into()
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/rt_linux.rs:162:19
[INFO] [stdout]     |
[INFO] [stdout] 162 |           rlim_max: max
[INFO] [stdout]     |  ___________________^
[INFO] [stdout] 163 | |             .try_into()
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_thread_priority` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5b8e3e4c64b599028394554a6a04c054cdd6fb41c80b4a7e6462f1770b4a0e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8e3e4c64b599028394554a6a04c054cdd6fb41c80b4a7e6462f1770b4a0e46", kill_on_drop: false }`
[INFO] [stdout] 5b8e3e4c64b599028394554a6a04c054cdd6fb41c80b4a7e6462f1770b4a0e46