[INFO] fetching crate whats-a-png 0.1.1...
[INFO] checking whats-a-png-0.1.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate whats-a-png 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate whats-a-png 0.1.1
[INFO] finished tweaking crates.io crate whats-a-png 0.1.1
[INFO] tweaked toml for crates.io crate whats-a-png 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate whats-a-png 0.1.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate whats-a-png 0.1.1 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 766901f6035316f7dd248bfe949bb32cd4b0fde948c2cf6fd0ae9f8fdd211202
[INFO] running `Command { std: "docker" "start" "-a" "766901f6035316f7dd248bfe949bb32cd4b0fde948c2cf6fd0ae9f8fdd211202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "766901f6035316f7dd248bfe949bb32cd4b0fde948c2cf6fd0ae9f8fdd211202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "766901f6035316f7dd248bfe949bb32cd4b0fde948c2cf6fd0ae9f8fdd211202", kill_on_drop: false }`
[INFO] [stdout] 766901f6035316f7dd248bfe949bb32cd4b0fde948c2cf6fd0ae9f8fdd211202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e0f3d769963fb94dd92fdc505b0a0999c47d2ab3263b0535d96442f9beab108
[INFO] running `Command { std: "docker" "start" "-a" "3e0f3d769963fb94dd92fdc505b0a0999c47d2ab3263b0535d96442f9beab108", kill_on_drop: false }`
[INFO] [stderr]     Checking whats-a-png v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `info` is never read
[INFO] [stdout]   --> src/png.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct PngImage {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 33 |     pub info: PNGInfo,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/png.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct PNGInfo {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 46 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 47 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 48 |     pub bit_depth: u8,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 49 |     pub color_type: u8,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 50 |     pub compression_method: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 51 |     pub filter_method: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 52 |     pub interlace_method: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `info` is never read
[INFO] [stdout]   --> src/png.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct PngImage {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 33 |     pub info: PNGInfo,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/png.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct PNGInfo {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 46 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 47 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 48 |     pub bit_depth: u8,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 49 |     pub color_type: u8,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 50 |     pub compression_method: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 51 |     pub filter_method: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 52 |     pub interlace_method: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "3e0f3d769963fb94dd92fdc505b0a0999c47d2ab3263b0535d96442f9beab108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e0f3d769963fb94dd92fdc505b0a0999c47d2ab3263b0535d96442f9beab108", kill_on_drop: false }`
[INFO] [stdout] 3e0f3d769963fb94dd92fdc505b0a0999c47d2ab3263b0535d96442f9beab108