[INFO] cloning repository https://github.com/bwiklund/rust-png-decoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bwiklund/rust-png-decoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwiklund%2Frust-png-decoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwiklund%2Frust-png-decoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32b34355c65f69046dfab0b772ff348131ac334a
[INFO] checking bwiklund/rust-png-decoder against master#2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbwiklund%2Frust-png-decoder" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bwiklund/rust-png-decoder
[INFO] finished tweaking git repo https://github.com/bwiklund/rust-png-decoder
[INFO] tweaked toml for git repo https://github.com/bwiklund/rust-png-decoder written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bwiklund/rust-png-decoder on toolchain 2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bwiklund/rust-png-decoder 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" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f1b3fe3c58380b6a854236b57abb4ec642b46b9ddb01e0d9f3c8b40d75bae99
[INFO] running `Command { std: "docker" "start" "-a" "5f1b3fe3c58380b6a854236b57abb4ec642b46b9ddb01e0d9f3c8b40d75bae99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f1b3fe3c58380b6a854236b57abb4ec642b46b9ddb01e0d9f3c8b40d75bae99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f1b3fe3c58380b6a854236b57abb4ec642b46b9ddb01e0d9f3c8b40d75bae99", kill_on_drop: false }`
[INFO] [stdout] 5f1b3fe3c58380b6a854236b57abb4ec642b46b9ddb01e0d9f3c8b40d75bae99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fde85760849637a9466107f273524e24d66ef3fc8fe028069a47dd730e7af0d4
[INFO] running `Command { std: "docker" "start" "-a" "fde85760849637a9466107f273524e24d66ef3fc8fe028069a47dd730e7af0d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking png v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `len` and `crc` are never read
[INFO] [stdout]   --> src/chunks.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ChunkRaw {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |   pub ty: [u8; 4],
[INFO] [stdout] 16 |   pub len: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 17 |   pub crc: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `depth`, `compression`, `filter`, and `interlace` are never read
[INFO] [stdout]   --> src/chunks.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct ChunkIHDR {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 83 |   pub depth: u8,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 84 |   pub color: u8,
[INFO] [stdout] 85 |   pub compression: u8,
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 86 |   pub filter: u8,
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 87 |   pub interlace: u8,
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChunkIHDR` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IDAT` is never constructed
[INFO] [stdout]    --> src/chunks.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct IDAT {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rendering_intent` is never read
[INFO] [stdout]    --> src/chunks.rs:116:7
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct SRGB {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 116 |   pub rendering_intent: u8,
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SRGB` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `len` and `crc` are never read
[INFO] [stdout]   --> src/chunks.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ChunkRaw {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |   pub ty: [u8; 4],
[INFO] [stdout] 16 |   pub len: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 17 |   pub crc: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `depth`, `compression`, `filter`, and `interlace` are never read
[INFO] [stdout]   --> src/chunks.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct ChunkIHDR {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 83 |   pub depth: u8,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 84 |   pub color: u8,
[INFO] [stdout] 85 |   pub compression: u8,
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 86 |   pub filter: u8,
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 87 |   pub interlace: u8,
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChunkIHDR` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IDAT` is never constructed
[INFO] [stdout]    --> src/chunks.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct IDAT {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rendering_intent` is never read
[INFO] [stdout]    --> src/chunks.rs:116:7
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct SRGB {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 116 |   pub rendering_intent: u8,
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SRGB` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "fde85760849637a9466107f273524e24d66ef3fc8fe028069a47dd730e7af0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fde85760849637a9466107f273524e24d66ef3fc8fe028069a47dd730e7af0d4", kill_on_drop: false }`
[INFO] [stdout] fde85760849637a9466107f273524e24d66ef3fc8fe028069a47dd730e7af0d4