[INFO] cloning repository https://github.com/emre-ergun/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emre-ergun/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femre-ergun%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femre-ergun%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4a3e6dfb753150e61e4767673911fe5b52d10cc
[INFO] checking emre-ergun/pngme against try#50f413885985a8b0a0b6ca0766a0aedd45304953 for pr-155657
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femre-ergun%2Fpngme" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emre-ergun/pngme
[INFO] finished tweaking git repo https://github.com/emre-ergun/pngme
[INFO] tweaked toml for git repo https://github.com/emre-ergun/pngme written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emre-ergun/pngme on toolchain 50f413885985a8b0a0b6ca0766a0aedd45304953
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emre-ergun/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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 482822186a1a09d1ed43d1badfc331ad4280e43615404c6dc6ee529fbc59d976
[INFO] running `Command { std: "docker" "start" "-a" "482822186a1a09d1ed43d1badfc331ad4280e43615404c6dc6ee529fbc59d976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "482822186a1a09d1ed43d1badfc331ad4280e43615404c6dc6ee529fbc59d976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482822186a1a09d1ed43d1badfc331ad4280e43615404c6dc6ee529fbc59d976", kill_on_drop: false }`
[INFO] [stdout] 482822186a1a09d1ed43d1badfc331ad4280e43615404c6dc6ee529fbc59d976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28b8c62d906c62fb690509db2fa3e3f7d0597605a5dd0faf7c900f38d953c3c8
[INFO] running `Command { std: "docker" "start" "-a" "28b8c62d906c62fb690509db2fa3e3f7d0597605a5dd0faf7c900f38d953c3c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]     Checking thiserror v2.0.16
[INFO] [stderr]     Checking pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ChunkType` is never constructed
[INFO] [stdout]  --> src/chunk_type.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ChunkType([u8; 4]);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkTypeError` is never used
[INFO] [stdout]   --> src/chunk_type.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum ChunkTypeError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `bytes`, `is_valid`, `is_critical`, `is_public`, `is_reserved_bit_valid`, and `is_safe_to_copy` are never used
[INFO] [stdout]   --> src/chunk_type.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl ChunkType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 49 |     fn bytes(&self) -> [u8; 4] {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn is_valid(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn is_critical(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn is_public(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.90s
[INFO] running `Command { std: "docker" "inspect" "28b8c62d906c62fb690509db2fa3e3f7d0597605a5dd0faf7c900f38d953c3c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28b8c62d906c62fb690509db2fa3e3f7d0597605a5dd0faf7c900f38d953c3c8", kill_on_drop: false }`
[INFO] [stdout] 28b8c62d906c62fb690509db2fa3e3f7d0597605a5dd0faf7c900f38d953c3c8
