[INFO] fetching crate trees-lang 0.2.5...
[INFO] building trees-lang-0.2.5 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate trees-lang 0.2.5 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate trees-lang 0.2.5
[INFO] finished tweaking crates.io crate trees-lang 0.2.5
[INFO] tweaked toml for crates.io crate trees-lang 0.2.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trees-lang 0.2.5 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trees-lang 0.2.5 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fa4ab3e66b26bb4de0c78391633a3e76e94d1501587231b43c7c6c772babd2c
[INFO] running `Command { std: "docker" "start" "-a" "2fa4ab3e66b26bb4de0c78391633a3e76e94d1501587231b43c7c6c772babd2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fa4ab3e66b26bb4de0c78391633a3e76e94d1501587231b43c7c6c772babd2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa4ab3e66b26bb4de0c78391633a3e76e94d1501587231b43c7c6c772babd2c", kill_on_drop: false }`
[INFO] [stdout] 2fa4ab3e66b26bb4de0c78391633a3e76e94d1501587231b43c7c6c772babd2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55d603b79175bf8bcc68b97b88723ea74c05d26805915c6ec59cb8c04518975c
[INFO] running `Command { std: "docker" "start" "-a" "55d603b79175bf8bcc68b97b88723ea74c05d26805915c6ec59cb8c04518975c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling trees-lang v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/compile.rs:569:3
[INFO] [stdout]     |
[INFO] [stdout] 569 |   config: &CompileConfig,
[INFO] [stdout]     |   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "55d603b79175bf8bcc68b97b88723ea74c05d26805915c6ec59cb8c04518975c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d603b79175bf8bcc68b97b88723ea74c05d26805915c6ec59cb8c04518975c", kill_on_drop: false }`
[INFO] [stdout] 55d603b79175bf8bcc68b97b88723ea74c05d26805915c6ec59cb8c04518975c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82b6b56ec9e64a1a3e6f4068a7b814278184663e645bcee001e7c3567a3a73c9
[INFO] running `Command { std: "docker" "start" "-a" "82b6b56ec9e64a1a3e6f4068a7b814278184663e645bcee001e7c3567a3a73c9", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/compile.rs:569:3
[INFO] [stdout]     |
[INFO] [stdout] 569 |   config: &CompileConfig,
[INFO] [stdout]     |   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling trees-lang v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/compile.rs:569:3
[INFO] [stdout]     |
[INFO] [stdout] 569 |   config: &CompileConfig,
[INFO] [stdout]     |   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "82b6b56ec9e64a1a3e6f4068a7b814278184663e645bcee001e7c3567a3a73c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82b6b56ec9e64a1a3e6f4068a7b814278184663e645bcee001e7c3567a3a73c9", kill_on_drop: false }`
[INFO] [stdout] 82b6b56ec9e64a1a3e6f4068a7b814278184663e645bcee001e7c3567a3a73c9
