[INFO] fetching crate a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab 0.0.2...
[INFO] checking a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab-0.0.2 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab 0.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab 0.0.2 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab 0.0.2
[INFO] finished tweaking crates.io crate a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab 0.0.2
[INFO] tweaked toml for crates.io crate a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab 0.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb259cedaef1b17e7aa5f98b5ee81724341fd327c0edca451bc2b8439f17fcc0
[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" "eb259cedaef1b17e7aa5f98b5ee81724341fd327c0edca451bc2b8439f17fcc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb259cedaef1b17e7aa5f98b5ee81724341fd327c0edca451bc2b8439f17fcc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb259cedaef1b17e7aa5f98b5ee81724341fd327c0edca451bc2b8439f17fcc0", kill_on_drop: false }`
[INFO] [stdout] eb259cedaef1b17e7aa5f98b5ee81724341fd327c0edca451bc2b8439f17fcc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4637a942a5eecbfdb58b6b55448e01b5d142251c62cdc7ca08d6a27d9f12f113
[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" "4637a942a5eecbfdb58b6b55448e01b5d142251c62cdc7ca08d6a27d9f12f113", kill_on_drop: false }`
[INFO] [stderr]     Checking aaccd987c5ef83481d6f63eb63c835e61c02443986457edbbfc53aaec v0.0.1
[INFO] [stderr]     Checking a5d242220f7f25178acf3b9f2f43e08121ef4ea3b67c08585e7fc94ab v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `indent`
[INFO] [stdout]  --> src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn dep_tree(indent: usize) {
[INFO] [stdout]   |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_indent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `indent`
[INFO] [stdout]  --> src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn dep_tree(indent: usize) {
[INFO] [stdout]   |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_indent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "4637a942a5eecbfdb58b6b55448e01b5d142251c62cdc7ca08d6a27d9f12f113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4637a942a5eecbfdb58b6b55448e01b5d142251c62cdc7ca08d6a27d9f12f113", kill_on_drop: false }`
[INFO] [stdout] 4637a942a5eecbfdb58b6b55448e01b5d142251c62cdc7ca08d6a27d9f12f113