[INFO] cloning repository https://github.com/flauntingspade4/PNGme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flauntingspade4/PNGme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflauntingspade4%2FPNGme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflauntingspade4%2FPNGme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5af6ea38eb20ad78dd26ed6517597bc794da6c8f
[INFO] checking flauntingspade4/PNGme against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflauntingspade4%2FPNGme" "/workspace/builds/worker-117/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-117/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flauntingspade4/PNGme on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flauntingspade4/PNGme
[INFO] finished tweaking git repo https://github.com/flauntingspade4/PNGme
[INFO] tweaked toml for git repo https://github.com/flauntingspade4/PNGme written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate git repo https://github.com/flauntingspade4/PNGme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 052d830f67257c468a7e9334fe02ad156b9b64d56ae10dbbb84f8d2b5b0eb2e5
[INFO] running `Command { std: "docker" "start" "-a" "052d830f67257c468a7e9334fe02ad156b9b64d56ae10dbbb84f8d2b5b0eb2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "052d830f67257c468a7e9334fe02ad156b9b64d56ae10dbbb84f8d2b5b0eb2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "052d830f67257c468a7e9334fe02ad156b9b64d56ae10dbbb84f8d2b5b0eb2e5", kill_on_drop: false }`
[INFO] [stdout] 052d830f67257c468a7e9334fe02ad156b9b64d56ae10dbbb84f8d2b5b0eb2e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 530886352c7853cbdd3285071c2da860fb4f527eecc27024e02b41d8818ef5b7
[INFO] running `Command { std: "docker" "start" "-a" "530886352c7853cbdd3285071c2da860fb4f527eecc27024e02b41d8818ef5b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking PNGme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::array::TryFromSliceError`
[INFO] [stdout]  --> src/chunk.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::array::TryFromSliceError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::TryFromSliceError`
[INFO] [stdout]  --> src/png.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{array::TryFromSliceError, convert::TryFrom};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::array::TryFromSliceError`
[INFO] [stdout]  --> src/chunk.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::array::TryFromSliceError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::TryFromSliceError`
[INFO] [stdout]  --> src/png.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{array::TryFromSliceError, convert::TryFrom};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append_chunk`
[INFO] [stdout]   --> src/png.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn append_chunk(&mut self, chunk: Chunk) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_chunk`
[INFO] [stdout]   --> src/png.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn remove_chunk(&mut self, chunk_type: &str) -> Option<Chunk> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `chunk_by_type`
[INFO] [stdout]   --> src/png.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn chunk_by_type(&self, chunk_type: &str) -> Option<&Chunk> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "530886352c7853cbdd3285071c2da860fb4f527eecc27024e02b41d8818ef5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530886352c7853cbdd3285071c2da860fb4f527eecc27024e02b41d8818ef5b7", kill_on_drop: false }`
[INFO] [stdout] 530886352c7853cbdd3285071c2da860fb4f527eecc27024e02b41d8818ef5b7