[INFO] cloning repository https://github.com/0xlax/PNGChunk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xlax/PNGChunk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlax%2FPNGChunk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlax%2FPNGChunk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13d95ff801f8d775bb00f898176ccf5c30fa1e0a
[INFO] checking 0xlax/PNGChunk against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlax%2FPNGChunk" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xlax/PNGChunk
[INFO] finished tweaking git repo https://github.com/0xlax/PNGChunk
[INFO] tweaked toml for git repo https://github.com/0xlax/PNGChunk written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xlax/PNGChunk on toolchain e117153a45c546e883c1f91d82611775fcaeffe0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xlax/PNGChunk 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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b9ceb4c8d3b82f2b980f0d65d94036420960d2cdaa508430705530e2d70228d
[INFO] running `Command { std: "docker" "start" "-a" "7b9ceb4c8d3b82f2b980f0d65d94036420960d2cdaa508430705530e2d70228d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b9ceb4c8d3b82f2b980f0d65d94036420960d2cdaa508430705530e2d70228d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b9ceb4c8d3b82f2b980f0d65d94036420960d2cdaa508430705530e2d70228d", kill_on_drop: false }`
[INFO] [stdout] 7b9ceb4c8d3b82f2b980f0d65d94036420960d2cdaa508430705530e2d70228d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e28b8d1b60407d2026ae5b4630c1ed6231d2353232874d4ca70e34b503ca08d1
[INFO] running `Command { std: "docker" "start" "-a" "e28b8d1b60407d2026ae5b4630c1ed6231d2353232874d4ca70e34b503ca08d1", kill_on_drop: false }`
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking crc v3.3.0
[INFO] [stderr]     Checking png v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Chunk` is never constructed
[INFO] [stdout]  --> src/chunk.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Chunk {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `length`, `chunk_type`, `data_as_string`, and `crc` are never used
[INFO] [stdout]   --> src/chunk.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Chunk {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 60 |     pub fn new(chunk_type: ChunkType, data: Vec<u8>) -> Chunk {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn length(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn chunk_type(&self) -> &ChunkType {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn data_as_string(&self) -> Result<String, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     pub fn crc(&self) -> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunkType` is never constructed
[INFO] [stdout]  --> src/chunk_type.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ChunkType {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunkParseError` is never constructed
[INFO] [stdout]   --> src/chunk_type.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct ChunkParseError;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `bytes`, `is_critical`, `is_public`, `is_reserved_bit_valid`, `is_safe_to_copy`, and `is_valid` are never used
[INFO] [stdout]   --> src/chunk_type.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl ChunkType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn bytes(&self) -> [u8; 4]  {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_critical(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn is_public(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "e28b8d1b60407d2026ae5b4630c1ed6231d2353232874d4ca70e34b503ca08d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28b8d1b60407d2026ae5b4630c1ed6231d2353232874d4ca70e34b503ca08d1", kill_on_drop: false }`
[INFO] [stdout] e28b8d1b60407d2026ae5b4630c1ed6231d2353232874d4ca70e34b503ca08d1
