[INFO] cloning repository https://github.com/motherofdaemons/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/motherofdaemons/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotherofdaemons%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotherofdaemons%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dcc89e1008318695b22ae14c92cebb2b8c3b8d43
[INFO] checking motherofdaemons/pngme against master#bd71213cf0a765705e7d72a099151bd4eb465ccb for pr-123864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotherofdaemons%2Fpngme" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/motherofdaemons/pngme on toolchain bd71213cf0a765705e7d72a099151bd4eb465ccb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/motherofdaemons/pngme
[INFO] finished tweaking git repo https://github.com/motherofdaemons/pngme
[INFO] tweaked toml for git repo https://github.com/motherofdaemons/pngme written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/motherofdaemons/pngme 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" "+bd71213cf0a765705e7d72a099151bd4eb465ccb" "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 motherofdaemons/pngme against try#c0f799aeda763fc507814da0dc46c2dde7ca9133 for pr-123864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotherofdaemons%2Fpngme" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/motherofdaemons/pngme on toolchain c0f799aeda763fc507814da0dc46c2dde7ca9133
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/motherofdaemons/pngme
[INFO] finished tweaking git repo https://github.com/motherofdaemons/pngme
[INFO] tweaked toml for git repo https://github.com/motherofdaemons/pngme written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/motherofdaemons/pngme 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" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95e35f4f674c65f6b6645d919ea2a8a12830419ac9381ccee1658c5f0b438633
[INFO] running `Command { std: "docker" "start" "-a" "95e35f4f674c65f6b6645d919ea2a8a12830419ac9381ccee1658c5f0b438633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95e35f4f674c65f6b6645d919ea2a8a12830419ac9381ccee1658c5f0b438633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e35f4f674c65f6b6645d919ea2a8a12830419ac9381ccee1658c5f0b438633", kill_on_drop: false }`
[INFO] [stdout] 95e35f4f674c65f6b6645d919ea2a8a12830419ac9381ccee1658c5f0b438633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c0f799aeda763fc507814da0dc46c2dde7ca9133" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca1ff3bdd0543279150da2699570a97f6083b0ee10afdbafefc61b020dd56fec
[INFO] running `Command { std: "docker" "start" "-a" "ca1ff3bdd0543279150da2699570a97f6083b0ee10afdbafefc61b020dd56fec", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking clap v3.2.22
[INFO] [stderr]     Checking pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `data` is never used
[INFO] [stdout]    --> src/chunk.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 87  | impl Chunk {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn data(&self) -> &[u8] {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.64s
[INFO] running `Command { std: "docker" "inspect" "ca1ff3bdd0543279150da2699570a97f6083b0ee10afdbafefc61b020dd56fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1ff3bdd0543279150da2699570a97f6083b0ee10afdbafefc61b020dd56fec", kill_on_drop: false }`
[INFO] [stdout] ca1ff3bdd0543279150da2699570a97f6083b0ee10afdbafefc61b020dd56fec