[INFO] cloning repository https://github.com/CharonWu/Cover-Art-Changer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CharonWu/Cover-Art-Changer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharonWu%2FCover-Art-Changer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharonWu%2FCover-Art-Changer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34257f890c50c7d7ee2e18d6f223fb105db614db
[INFO] building CharonWu/Cover-Art-Changer against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharonWu%2FCover-Art-Changer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CharonWu/Cover-Art-Changer on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CharonWu/Cover-Art-Changer
[INFO] finished tweaking git repo https://github.com/CharonWu/Cover-Art-Changer
[INFO] tweaked toml for git repo https://github.com/CharonWu/Cover-Art-Changer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CharonWu/Cover-Art-Changer 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b7af37eb538e84882fec407439468b4d884b7a106ace918b6d2454f8067878d
[INFO] running `Command { std: "docker" "start" "-a" "8b7af37eb538e84882fec407439468b4d884b7a106ace918b6d2454f8067878d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b7af37eb538e84882fec407439468b4d884b7a106ace918b6d2454f8067878d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b7af37eb538e84882fec407439468b4d884b7a106ace918b6d2454f8067878d", kill_on_drop: false }`
[INFO] [stdout] 8b7af37eb538e84882fec407439468b4d884b7a106ace918b6d2454f8067878d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a1c61f8b148d3786a56dd9fc43c94ff14b682ceef27eec15c6af50076a90f3d
[INFO] running `Command { std: "docker" "start" "-a" "1a1c61f8b148d3786a56dd9fc43c94ff14b682ceef27eec15c6af50076a90f3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cover_art_changer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/audio/flac.rs:20:51
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> FlacStream<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 20 |     pub fn from_file(filepath: &'a str) -> Result<FlacStream, ReadFileError> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/audio/flac.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata_length`
[INFO] [stdout]    --> src/audio/flac.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let metadata_length = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pic_description`
[INFO] [stdout]    --> src/audio/flac.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 217 |         let pic_description =
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pic_description`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pic_width`
[INFO] [stdout]    --> src/audio/flac.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let pic_width = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pic_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pic_height`
[INFO] [stdout]    --> src/audio/flac.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let pic_height = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pic_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_depth`
[INFO] [stdout]    --> src/audio/flac.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let color_depth = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_index`
[INFO] [stdout]    --> src/audio/flac.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |         let color_index = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `audio_files` is never read
[INFO] [stdout]   --> src/audio/mod.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |             let mut audio_files: Vec<String> = Vec::new();
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]  --> src/image/mod.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |             Err(e) => Err(ReadFileError::FilePathError(
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Image` should have a snake case name
[INFO] [stdout]  --> src/image/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Image {
[INFO] [stdout]   |         ^^^^^ help: convert the identifier to snake case (notice the capitalization): `image`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "1a1c61f8b148d3786a56dd9fc43c94ff14b682ceef27eec15c6af50076a90f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a1c61f8b148d3786a56dd9fc43c94ff14b682ceef27eec15c6af50076a90f3d", kill_on_drop: false }`
[INFO] [stdout] 1a1c61f8b148d3786a56dd9fc43c94ff14b682ceef27eec15c6af50076a90f3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11f39b97d3b1037edb0d5204733e0e7d98e089157f3b8ff0c42edf74c6d4c66b
[INFO] running `Command { std: "docker" "start" "-a" "11f39b97d3b1037edb0d5204733e0e7d98e089157f3b8ff0c42edf74c6d4c66b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cover_art_changer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/audio/flac.rs:20:51
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> FlacStream<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 20 |     pub fn from_file(filepath: &'a str) -> Result<FlacStream, ReadFileError> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/audio/flac.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata_length`
[INFO] [stdout]    --> src/audio/flac.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let metadata_length = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pic_description`
[INFO] [stdout]    --> src/audio/flac.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 217 |         let pic_description =
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pic_description`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pic_width`
[INFO] [stdout]    --> src/audio/flac.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let pic_width = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pic_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pic_height`
[INFO] [stdout]    --> src/audio/flac.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let pic_height = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pic_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_depth`
[INFO] [stdout]    --> src/audio/flac.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let color_depth = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_index`
[INFO] [stdout]    --> src/audio/flac.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |         let color_index = bytes_to_u32(&stream[pic_block_i..(pic_block_i + 4)]);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `audio_files` is never read
[INFO] [stdout]   --> src/audio/mod.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |             let mut audio_files: Vec<String> = Vec::new();
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]  --> src/image/mod.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |             Err(e) => Err(ReadFileError::FilePathError(
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Image` should have a snake case name
[INFO] [stdout]  --> src/image/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Image {
[INFO] [stdout]   |         ^^^^^ help: convert the identifier to snake case (notice the capitalization): `image`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "11f39b97d3b1037edb0d5204733e0e7d98e089157f3b8ff0c42edf74c6d4c66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f39b97d3b1037edb0d5204733e0e7d98e089157f3b8ff0c42edf74c6d4c66b", kill_on_drop: false }`
[INFO] [stdout] 11f39b97d3b1037edb0d5204733e0e7d98e089157f3b8ff0c42edf74c6d4c66b
