[INFO] cloning repository https://github.com/ruuda/mindec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruuda/mindec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Fmindec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Fmindec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 343c2a5a5c28358fc8722164600934aa963eafa7
[INFO] building ruuda/mindec against master#87788097b776f8e3662f76627944230684b671bd for pr-101591
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Fmindec" "/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/ruuda/mindec on toolchain 87788097b776f8e3662f76627944230684b671bd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/ruuda/mindec
[INFO] finished tweaking git repo https://github.com/ruuda/mindec
[INFO] tweaked toml for git repo https://github.com/ruuda/mindec written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ruuda/mindec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/ruuda/claxon`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bs1770 v1.0.0
[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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f1b698cff8a5f4cf7145e38923c52052fa5a6cef35e98637c0c6244c68c4b27
[INFO] running `Command { std: "docker" "start" "-a" "8f1b698cff8a5f4cf7145e38923c52052fa5a6cef35e98637c0c6244c68c4b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f1b698cff8a5f4cf7145e38923c52052fa5a6cef35e98637c0c6244c68c4b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f1b698cff8a5f4cf7145e38923c52052fa5a6cef35e98637c0c6244c68c4b27", kill_on_drop: false }`
[INFO] [stdout] 8f1b698cff8a5f4cf7145e38923c52052fa5a6cef35e98637c0c6244c68c4b27
[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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df1008a897b63083ff74df0bddb82469e83971ffd4a294bd2f072a13167d477f
[INFO] running `Command { std: "docker" "start" "-a" "df1008a897b63083ff74df0bddb82469e83971ffd4a294bd2f072a13167d477f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec v0.3.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling chunked_transfer v1.2.0
[INFO] [stderr]    Compiling crossbeam v0.3.2
[INFO] [stderr]    Compiling claxon v0.4.3 (https://github.com/ruuda/claxon?rev=1f868774a250f5937ae70c868d77d1b1479f1831#1f868774)
[INFO] [stderr]    Compiling bs1770 v1.0.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling sqlite3-src v0.3.0
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling sqlite3-sys v0.13.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling time v0.3.9
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling sqlite v0.26.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tiny_http v0.11.0
[INFO] [stderr]    Compiling alsa v0.6.0
[INFO] [stderr]    Compiling musium v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `value_slices` is never read
[INFO] [stdout]   --> src/search.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct Union<'a, I: 'a + WordIndex> {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 86 |     value_slices: &'a [Values],
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `len` is never used
[INFO] [stdout]    --> src/search.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.45s
[INFO] running `Command { std: "docker" "inspect" "df1008a897b63083ff74df0bddb82469e83971ffd4a294bd2f072a13167d477f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df1008a897b63083ff74df0bddb82469e83971ffd4a294bd2f072a13167d477f", kill_on_drop: false }`
[INFO] [stdout] df1008a897b63083ff74df0bddb82469e83971ffd4a294bd2f072a13167d477f
[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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+87788097b776f8e3662f76627944230684b671bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84944a0ec7f3014e47b22762b852afb08db6f83bec87e9d2682b29eaa637bc8b
[INFO] running `Command { std: "docker" "start" "-a" "84944a0ec7f3014e47b22762b852afb08db6f83bec87e9d2682b29eaa637bc8b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "84944a0ec7f3014e47b22762b852afb08db6f83bec87e9d2682b29eaa637bc8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84944a0ec7f3014e47b22762b852afb08db6f83bec87e9d2682b29eaa637bc8b", kill_on_drop: false }`
[INFO] [stdout] 84944a0ec7f3014e47b22762b852afb08db6f83bec87e9d2682b29eaa637bc8b