[INFO] cloning repository https://github.com/adamrodger/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamrodger/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamrodger%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamrodger%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cbc9e5663b046b7edca075a94b0b0871ffea140
[INFO] checking adamrodger/pngme against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamrodger%2Fpngme" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/adamrodger/pngme
[INFO] finished tweaking git repo https://github.com/adamrodger/pngme
[INFO] tweaked toml for git repo https://github.com/adamrodger/pngme written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/adamrodger/pngme on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/adamrodger/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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f367eb15261a0ed3d00f1bfa6237070eb780e5990fe4186e940377032c3a4840
[INFO] running `Command { std: "docker" "start" "-a" "f367eb15261a0ed3d00f1bfa6237070eb780e5990fe4186e940377032c3a4840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f367eb15261a0ed3d00f1bfa6237070eb780e5990fe4186e940377032c3a4840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f367eb15261a0ed3d00f1bfa6237070eb780e5990fe4186e940377032c3a4840", kill_on_drop: false }`
[INFO] [stdout] f367eb15261a0ed3d00f1bfa6237070eb780e5990fe4186e940377032c3a4840
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 300368d2705c4b7e37451e552566b35f552154eace5fa4a1ea5b4879c610d5c0
[INFO] running `Command { std: "docker" "start" "-a" "300368d2705c4b7e37451e552566b35f552154eace5fa4a1ea5b4879c610d5c0", kill_on_drop: false }`
[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: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/chunk_type.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout]    |                       ^                                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout] 23 +             .all(|&b| b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z') );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/chunk_type.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout]    |                       ^                                                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 68 -             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout] 68 +             .all(|&b| b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z') );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/chunk_type.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout]    |                       ^                                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout] 23 +             .all(|&b| b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z') );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/chunk_type.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout] 68 |             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout]    |                       ^                                                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 68 -             .all(|&b| (b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z')));
[INFO] [stdout] 68 +             .all(|&b| b >= b'a' && b <= b'z' || (b >= b'A' && b <= b'Z') );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk` is never constructed
[INFO] [stdout]   --> src/chunk.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | 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: multiple associated items are never used
[INFO] [stdout]   --> src/chunk.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Chunk {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 16 |     pub const DATA_LENGTH_BYTES: usize = 4;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     pub const CHUNK_TYPE_BYTES: usize = 4;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |     pub const CRC_BYTES: usize = 4;
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub const METADATA_BYTES: usize =
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn new(chunk_type: ChunkType, data: Vec<u8>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn length(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chunk_type(&self) -> &ChunkType {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn data(&self) -> &[u8] {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn crc(&self) -> u32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn data_as_string(&self) -> Result<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn as_bytes(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkError` is never used
[INFO] [stdout]    --> src/chunk.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub enum ChunkError {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunkType` is never constructed
[INFO] [stdout]  --> src/chunk_type.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ChunkType {
[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:14:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl ChunkType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 13 |     /// Bytes encoding the chunk type
[INFO] [stdout] 14 |     pub fn bytes(&self) -> [u8; 4] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn is_critical(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_public(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkTypeError` is never used
[INFO] [stdout]   --> src/chunk_type.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub enum ChunkTypeError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Png` is never constructed
[INFO] [stdout]  --> src/png.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Png {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/png.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Png {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 10 |     pub const STANDARD_HEADER: [u8; 8] = [137, 80, 78, 71, 13, 10, 26, 10];
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |     fn from_chunks(chunks: Vec<Chunk>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn append_chunk(&mut self, chunk: Chunk) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn remove_chunk(&mut self, chunk_type: &str) -> Result<Chunk> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn header(&self) -> &[u8; 8] {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn chunks(&self) -> &[Chunk] {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn chunk_by_type(&self, chunk_type: &str) -> Option<&Chunk> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn as_bytes(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PngError` is never used
[INFO] [stdout]   --> src/png.rs:91:10
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub enum PngError {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `data` is never used
[INFO] [stdout]   --> src/chunk.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn data(&self) -> &[u8] {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "300368d2705c4b7e37451e552566b35f552154eace5fa4a1ea5b4879c610d5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300368d2705c4b7e37451e552566b35f552154eace5fa4a1ea5b4879c610d5c0", kill_on_drop: false }`
[INFO] [stdout] 300368d2705c4b7e37451e552566b35f552154eace5fa4a1ea5b4879c610d5c0