[INFO] cloning repository https://github.com/exvacuum/dithord
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/exvacuum/dithord" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexvacuum%2Fdithord", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexvacuum%2Fdithord'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cb36c09f79e655f2590f238ad0d3d6227b747c2
[INFO] checking exvacuum/dithord against master#7606c13961ddc1174b70638e934df0439b7dc515 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexvacuum%2Fdithord" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exvacuum/dithord on toolchain 7606c13961ddc1174b70638e934df0439b7dc515
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7606c13961ddc1174b70638e934df0439b7dc515" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/exvacuum/dithord
[INFO] finished tweaking git repo https://github.com/exvacuum/dithord
[INFO] tweaked toml for git repo https://github.com/exvacuum/dithord written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/exvacuum/dithord 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" "+7606c13961ddc1174b70638e934df0439b7dc515" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking exvacuum/dithord against try#ae973628c64ab60398819bcc1fd9f08ae68ad5b5 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexvacuum%2Fdithord" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exvacuum/dithord on toolchain ae973628c64ab60398819bcc1fd9f08ae68ad5b5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/exvacuum/dithord
[INFO] finished tweaking git repo https://github.com/exvacuum/dithord
[INFO] tweaked toml for git repo https://github.com/exvacuum/dithord written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/exvacuum/dithord 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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c22515935a4354e7964d48917109ef2e9177220f5963113f1c991183c9191b22
[INFO] running `Command { std: "docker" "start" "-a" "c22515935a4354e7964d48917109ef2e9177220f5963113f1c991183c9191b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c22515935a4354e7964d48917109ef2e9177220f5963113f1c991183c9191b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c22515935a4354e7964d48917109ef2e9177220f5963113f1c991183c9191b22", kill_on_drop: false }`
[INFO] [stdout] c22515935a4354e7964d48917109ef2e9177220f5963113f1c991183c9191b22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04d7fbf1b8912d660802bd831c1cb95e2ec94128291d5b1bc6b46f10183dafc7
[INFO] running `Command { std: "docker" "start" "-a" "04d7fbf1b8912d660802bd831c1cb95e2ec94128291d5b1bc6b46f10183dafc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.3
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]     Checking tiff v0.9.0
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking dithord v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.80s
[INFO] running `Command { std: "docker" "inspect" "04d7fbf1b8912d660802bd831c1cb95e2ec94128291d5b1bc6b46f10183dafc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d7fbf1b8912d660802bd831c1cb95e2ec94128291d5b1bc6b46f10183dafc7", kill_on_drop: false }`
[INFO] [stdout] 04d7fbf1b8912d660802bd831c1cb95e2ec94128291d5b1bc6b46f10183dafc7