[INFO] fetching crate vpk0 0.8.1...
[INFO] checking vpk0-0.8.1 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate vpk0 0.8.1 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate vpk0 0.8.1 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vpk0 0.8.1
[INFO] finished tweaking crates.io crate vpk0 0.8.1
[INFO] tweaked toml for crates.io crate vpk0 0.8.1 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36d73eba684c5966f91cb1390a2b92f3a4f2f3e8c3c3e0804ea0c552dd146b89
[INFO] running `Command { std: "docker" "start" "-a" "36d73eba684c5966f91cb1390a2b92f3a4f2f3e8c3c3e0804ea0c552dd146b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d73eba684c5966f91cb1390a2b92f3a4f2f3e8c3c3e0804ea0c552dd146b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d73eba684c5966f91cb1390a2b92f3a4f2f3e8c3c3e0804ea0c552dd146b89", kill_on_drop: false }`
[INFO] [stdout] 36d73eba684c5966f91cb1390a2b92f3a4f2f3e8c3c3e0804ea0c552dd146b89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eacb8dbd8f746d33eb489fc4510ed2ea070b18c478f98ea3ccfcf95e2b3d96c2
[INFO] running `Command { std: "docker" "start" "-a" "eacb8dbd8f746d33eb489fc4510ed2ea070b18c478f98ea3ccfcf95e2b3d96c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking bitstream-io v0.8.5
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking vpk0 v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `lookahead`
[INFO] [stdout]    --> src/encode/lzss.rs:293:5
[INFO] [stdout]     |
[INFO] [stdout] 293 |     lookahead: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lookahead`
[INFO] [stdout]    --> src/encode/lzss.rs:293:5
[INFO] [stdout]     |
[INFO] [stdout] 293 |     lookahead: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_ahead`
[INFO] [stdout]    --> src/encode/lzss.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 297 |     max_ahead: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_ahead`
[INFO] [stdout]    --> src/encode/lzss.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 297 |     max_ahead: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "eacb8dbd8f746d33eb489fc4510ed2ea070b18c478f98ea3ccfcf95e2b3d96c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eacb8dbd8f746d33eb489fc4510ed2ea070b18c478f98ea3ccfcf95e2b3d96c2", kill_on_drop: false }`
[INFO] [stdout] eacb8dbd8f746d33eb489fc4510ed2ea070b18c478f98ea3ccfcf95e2b3d96c2