[INFO] fetching crate kira 0.5.2...
[INFO] checking kira-0.5.2 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate kira 0.5.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate kira 0.5.2 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kira 0.5.2
[INFO] finished tweaking crates.io crate kira 0.5.2
[INFO] tweaked toml for crates.io crate kira 0.5.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f94268ba19819f5b83bd59d9712c511e0dd40634279ece1162a153c783b720f8
[INFO] running `Command { std: "docker" "start" "-a" "f94268ba19819f5b83bd59d9712c511e0dd40634279ece1162a153c783b720f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f94268ba19819f5b83bd59d9712c511e0dd40634279ece1162a153c783b720f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f94268ba19819f5b83bd59d9712c511e0dd40634279ece1162a153c783b720f8", kill_on_drop: false }`
[INFO] [stdout] f94268ba19819f5b83bd59d9712c511e0dd40634279ece1162a153c783b720f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 34d9a92a6613339880738ef5dd2dc60f17bb0967ceca3765ec05d0777a97dfce
[INFO] running `Command { std: "docker" "start" "-a" "34d9a92a6613339880738ef5dd2dc60f17bb0967ceca3765ec05d0777a97dfce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking basedrop v0.1.1
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking ringbuf v0.2.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking kira v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write`, `stderr`
[INFO] [stdout]   --> src/manager/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::{stderr, Write},
[INFO] [stdout]    |          ^^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instant::Instant`
[INFO] [stdout]   --> src/manager/mod.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use instant::Instant;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DROP_CLEANUP_TIMEOUT_MILLIS`
[INFO] [stdout]   --> src/manager/mod.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | const DROP_CLEANUP_TIMEOUT_MILLIS: u64 = 1000;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quit_signal_producer`
[INFO] [stdout]    --> src/manager/mod.rs:121:2
[INFO] [stdout]     |
[INFO] [stdout] 121 |     quit_signal_producer: Producer<bool>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.39s
[INFO] running `Command { std: "docker" "inspect" "34d9a92a6613339880738ef5dd2dc60f17bb0967ceca3765ec05d0777a97dfce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d9a92a6613339880738ef5dd2dc60f17bb0967ceca3765ec05d0777a97dfce", kill_on_drop: false }`
[INFO] [stdout] 34d9a92a6613339880738ef5dd2dc60f17bb0967ceca3765ec05d0777a97dfce