[INFO] cloning repository https://github.com/kogai/gzip-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kogai/gzip-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkogai%2Fgzip-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkogai%2Fgzip-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f8f9d64b67260b9820438425f245e961218b862
[INFO] checking kogai/gzip-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkogai%2Fgzip-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kogai/gzip-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kogai/gzip-rs
[INFO] finished tweaking git repo https://github.com/kogai/gzip-rs
[INFO] tweaked toml for git repo https://github.com/kogai/gzip-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/kogai/gzip-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b85d38616f29afcff7fcd0c2126f8c81ee9b97f86e8af8634bd7bf91bc68d786
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b85d38616f29afcff7fcd0c2126f8c81ee9b97f86e8af8634bd7bf91bc68d786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b85d38616f29afcff7fcd0c2126f8c81ee9b97f86e8af8634bd7bf91bc68d786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b85d38616f29afcff7fcd0c2126f8c81ee9b97f86e8af8634bd7bf91bc68d786", kill_on_drop: false }`
[INFO] [stdout] b85d38616f29afcff7fcd0c2126f8c81ee9b97f86e8af8634bd7bf91bc68d786
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6211eb319158e0b9ce1a4d4763d6938308fb4ec88059f6b74950f19fcbf57f2c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6211eb319158e0b9ce1a4d4763d6938308fb4ec88059f6b74950f19fcbf57f2c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking gzip-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `raw`
[INFO] [stdout]  --> src/lz77.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn compose(raw: &[u8]) -> Vec<Code> {
[INFO] [stdout]   |                ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Character`
[INFO] [stdout]  --> src/lz77.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   Character(u8),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Pair`
[INFO] [stdout]  --> src/lz77.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   Pair(u16, u32), // (len, pos)
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compose`
[INFO] [stdout]  --> src/lz77.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn compose(raw: &[u8]) -> Vec<Code> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `raw`
[INFO] [stdout]  --> src/lz77.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn compose(raw: &[u8]) -> Vec<Code> {
[INFO] [stdout]   |                ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "6211eb319158e0b9ce1a4d4763d6938308fb4ec88059f6b74950f19fcbf57f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6211eb319158e0b9ce1a4d4763d6938308fb4ec88059f6b74950f19fcbf57f2c", kill_on_drop: false }`
[INFO] [stdout] 6211eb319158e0b9ce1a4d4763d6938308fb4ec88059f6b74950f19fcbf57f2c