[INFO] cloning repository https://github.com/troglodytto/ping
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/troglodytto/ping" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroglodytto%2Fping", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroglodytto%2Fping'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f8e75e78fe650a816f1bf4973402fce4e03230c
[INFO] checking troglodytto/ping against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroglodytto%2Fping" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/troglodytto/ping
[INFO] finished tweaking git repo https://github.com/troglodytto/ping
[INFO] tweaked toml for git repo https://github.com/troglodytto/ping written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/troglodytto/ping on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/troglodytto/ping 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 964a4bea9842400479273130c23601020bf2339d33aa4c784b3c9548840c8ac9
[INFO] running `Command { std: "docker" "start" "-a" "964a4bea9842400479273130c23601020bf2339d33aa4c784b3c9548840c8ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "964a4bea9842400479273130c23601020bf2339d33aa4c784b3c9548840c8ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964a4bea9842400479273130c23601020bf2339d33aa4c784b3c9548840c8ac9", kill_on_drop: false }`
[INFO] [stdout] 964a4bea9842400479273130c23601020bf2339d33aa4c784b3c9548840c8ac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f59e12d71cc4d9c7a3094f0953cf6ee1bbb0a420a8913b22d2a0e4902c65b272
[INFO] running `Command { std: "docker" "start" "-a" "f59e12d71cc4d9c7a3094f0953cf6ee1bbb0a420a8913b22d2a0e4902c65b272", kill_on_drop: false }`
[INFO] [stderr]     Checking ping v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `cursor` is never read
[INFO] [stdout]    --> src/main.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     cursor += chunk.chunk_size;
[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: fields `length`, `chunk_type`, and `checksum` are never read
[INFO] [stdout]    --> src/main.rs:99:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | struct Chunk<'a> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 99  |     length: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 100 |     chunk_type: ChunkType,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 101 |     data: &'a [u8],
[INFO] [stdout] 102 |     checksum: [u8; 4],
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Chunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | struct ImageHeader<'a> {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 148 |     raw_chunk: &'a Chunk<'a>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 149 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 150 |     width: u32,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 151 |     bit_depth: u8,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 152 |     color_type: ColorType,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 153 |     compression_method: CompressionMethod,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 154 |     filter_method: FilterMethod,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 155 |     interlace_method: InterlaceMethod,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ImageHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:107:20
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn parse(file: &[u8]) -> Chunk {
[INFO] [stdout]     |                    ^^^^^     ----- the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn parse(file: &[u8]) -> Chunk<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cursor` is never read
[INFO] [stdout]    --> src/main.rs:203:5
[INFO] [stdout]     |
[INFO] [stdout] 203 |     cursor += chunk.chunk_size;
[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: fields `length`, `chunk_type`, and `checksum` are never read
[INFO] [stdout]    --> src/main.rs:99:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | struct Chunk<'a> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 99  |     length: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 100 |     chunk_type: ChunkType,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 101 |     data: &'a [u8],
[INFO] [stdout] 102 |     checksum: [u8; 4],
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Chunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | struct ImageHeader<'a> {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 148 |     raw_chunk: &'a Chunk<'a>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 149 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 150 |     width: u32,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 151 |     bit_depth: u8,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 152 |     color_type: ColorType,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 153 |     compression_method: CompressionMethod,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 154 |     filter_method: FilterMethod,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 155 |     interlace_method: InterlaceMethod,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ImageHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:107:20
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn parse(file: &[u8]) -> Chunk {
[INFO] [stdout]     |                    ^^^^^     ----- the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn parse(file: &[u8]) -> Chunk<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "f59e12d71cc4d9c7a3094f0953cf6ee1bbb0a420a8913b22d2a0e4902c65b272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f59e12d71cc4d9c7a3094f0953cf6ee1bbb0a420a8913b22d2a0e4902c65b272", kill_on_drop: false }`
[INFO] [stdout] f59e12d71cc4d9c7a3094f0953cf6ee1bbb0a420a8913b22d2a0e4902c65b272
