[INFO] cloning repository https://github.com/Kadphol/pngme-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kadphol/pngme-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKadphol%2Fpngme-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKadphol%2Fpngme-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 577e379cf51a8c2ab43ba7fcaf3670ddad0b8722
[INFO] checking Kadphol/pngme-tutorial/577e379cf51a8c2ab43ba7fcaf3670ddad0b8722 against master#2aabf3ce0569dd7c8c2d2a27944850056dcf2566 for pr-156508
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKadphol%2Fpngme-tutorial" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kadphol/pngme-tutorial
[INFO] finished tweaking git repo https://github.com/Kadphol/pngme-tutorial
[INFO] tweaked toml for git repo https://github.com/Kadphol/pngme-tutorial written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kadphol/pngme-tutorial on toolchain 2aabf3ce0569dd7c8c2d2a27944850056dcf2566
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kadphol/pngme-tutorial 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" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2412e3ccf4848ab4defc4ec477d5d391b4b80bcec75a2d3eafe2f2e87f212420
[INFO] running `Command { std: "docker" "start" "-a" "2412e3ccf4848ab4defc4ec477d5d391b4b80bcec75a2d3eafe2f2e87f212420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2412e3ccf4848ab4defc4ec477d5d391b4b80bcec75a2d3eafe2f2e87f212420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2412e3ccf4848ab4defc4ec477d5d391b4b80bcec75a2d3eafe2f2e87f212420", kill_on_drop: false }`
[INFO] [stdout] 2412e3ccf4848ab4defc4ec477d5d391b4b80bcec75a2d3eafe2f2e87f212420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4a1241b98223c19d8ac1ed607cb1a15035a10a1646ae20f1ca0c46506399bb
[INFO] running `Command { std: "docker" "start" "-a" "5f4a1241b98223c19d8ac1ed607cb1a15035a10a1646ae20f1ca0c46506399bb", kill_on_drop: false }`
[INFO] [stderr]     Checking pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ChunkType` is never constructed
[INFO] [stdout]   --> src/chunk_type.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub 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: multiple associated items are never used
[INFO] [stdout]   --> src/chunk_type.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl ChunkType {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 58 |     pub fn from(bytes: [u8; 4]) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn bytes(&self) -> [u8; 4] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn is_critical(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn is_public(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn is_valid_byte(byte: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/chunk_type.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunkType` is never constructed
[INFO] [stdout]   --> src/chunk_type.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub 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: multiple associated items are never used
[INFO] [stdout]   --> src/chunk_type.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl ChunkType {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 58 |     pub fn from(bytes: [u8; 4]) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn bytes(&self) -> [u8; 4] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn is_critical(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn is_public(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn is_valid_byte(byte: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/chunk_type.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_from_bytes` is never used
[INFO] [stdout]    --> src/chunk_type.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |         pub fn test_chunk_type_from_bytes() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_from_str` is never used
[INFO] [stdout]    --> src/chunk_type.rs:115:16
[INFO] [stdout]     |
[INFO] [stdout] 115 |         pub fn test_chunk_type_from_str() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_critical` is never used
[INFO] [stdout]    --> src/chunk_type.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout] 122 |         pub fn test_chunk_type_is_critical() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_not_critical` is never used
[INFO] [stdout]    --> src/chunk_type.rs:128:16
[INFO] [stdout]     |
[INFO] [stdout] 128 |         pub fn test_chunk_type_is_not_critical() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_public` is never used
[INFO] [stdout]    --> src/chunk_type.rs:134:16
[INFO] [stdout]     |
[INFO] [stdout] 134 |         pub fn test_chunk_type_is_public() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_not_public` is never used
[INFO] [stdout]    --> src/chunk_type.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |         pub fn test_chunk_type_is_not_public() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_reserved_bit_valid` is never used
[INFO] [stdout]    --> src/chunk_type.rs:146:16
[INFO] [stdout]     |
[INFO] [stdout] 146 |         pub fn test_chunk_type_is_reserved_bit_valid() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_reserved_bit_invalid` is never used
[INFO] [stdout]    --> src/chunk_type.rs:152:16
[INFO] [stdout]     |
[INFO] [stdout] 152 |         pub fn test_chunk_type_is_reserved_bit_invalid() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_safe_to_copy` is never used
[INFO] [stdout]    --> src/chunk_type.rs:158:16
[INFO] [stdout]     |
[INFO] [stdout] 158 |         pub fn test_chunk_type_is_safe_to_copy() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_is_unsafe_to_copy` is never used
[INFO] [stdout]    --> src/chunk_type.rs:164:16
[INFO] [stdout]     |
[INFO] [stdout] 164 |         pub fn test_chunk_type_is_unsafe_to_copy() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_valid_chunk_is_valid` is never used
[INFO] [stdout]    --> src/chunk_type.rs:170:16
[INFO] [stdout]     |
[INFO] [stdout] 170 |         pub fn test_valid_chunk_is_valid() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_invalid_chunk_is_valid` is never used
[INFO] [stdout]    --> src/chunk_type.rs:176:16
[INFO] [stdout]     |
[INFO] [stdout] 176 |         pub fn test_invalid_chunk_is_valid() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_string` is never used
[INFO] [stdout]    --> src/chunk_type.rs:185:16
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn test_chunk_type_string() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chunk_type_trait_impls` is never used
[INFO] [stdout]    --> src/chunk_type.rs:191:16
[INFO] [stdout]     |
[INFO] [stdout] 191 |         pub fn test_chunk_type_trait_impls() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "5f4a1241b98223c19d8ac1ed607cb1a15035a10a1646ae20f1ca0c46506399bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4a1241b98223c19d8ac1ed607cb1a15035a10a1646ae20f1ca0c46506399bb", kill_on_drop: false }`
[INFO] [stdout] 5f4a1241b98223c19d8ac1ed607cb1a15035a10a1646ae20f1ca0c46506399bb
