[INFO] fetching crate egconf 0.1.0...
[INFO] checking egconf-0.1.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate egconf 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate egconf 0.1.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate egconf 0.1.0
[INFO] finished tweaking crates.io crate egconf 0.1.0
[INFO] tweaked toml for crates.io crate egconf 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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" "+90442458ac46b1d5eed752c316da25450f67285b" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15e97fef7a5f06c7aaeaf6f29b0bcc9299c7f8ba8f9543dcd1428b5e0e271547
[INFO] running `Command { std: "docker" "start" "-a" "15e97fef7a5f06c7aaeaf6f29b0bcc9299c7f8ba8f9543dcd1428b5e0e271547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15e97fef7a5f06c7aaeaf6f29b0bcc9299c7f8ba8f9543dcd1428b5e0e271547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e97fef7a5f06c7aaeaf6f29b0bcc9299c7f8ba8f9543dcd1428b5e0e271547", kill_on_drop: false }`
[INFO] [stdout] 15e97fef7a5f06c7aaeaf6f29b0bcc9299c7f8ba8f9543dcd1428b5e0e271547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 529e6a923912347f5d864f606ca653346c2bdc54d93840703f7906d945e0f9c4
[INFO] running `Command { std: "docker" "start" "-a" "529e6a923912347f5d864f606ca653346c2bdc54d93840703f7906d945e0f9c4", kill_on_drop: false }`
[INFO] [stderr]     Checking egconf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:127:29
[INFO] [stdout]     |
[INFO] [stdout] 127 |             TreeNode::Leaf{ key, value } => {
[INFO] [stdout]     |                             ^^^ help: try ignoring the field: `key: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:135:31
[INFO] [stdout]     |
[INFO] [stdout] 135 |             TreeNode::Branch{ key, children} => {
[INFO] [stdout]     |                               ^^^ help: try ignoring the field: `key: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:159:32
[INFO] [stdout]     |
[INFO] [stdout] 159 |             TreeNode::Branch { key, children } => {
[INFO] [stdout]     |                                ^^^ help: try ignoring the field: `key: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]    --> src/lib.rs:164:37
[INFO] [stdout]     |
[INFO] [stdout] 164 |                         if let Some(child) =
[INFO] [stdout]     |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:191:35
[INFO] [stdout]     |
[INFO] [stdout] 191 |             TreeNode::Leaf { key, value } => key,
[INFO] [stdout]     |                                   ^^^^^ help: try ignoring the field: `value: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]    --> src/lib.rs:192:37
[INFO] [stdout]     |
[INFO] [stdout] 192 |             TreeNode::Branch { key, children } =>
[INFO] [stdout]     |                                     ^^^^^^^^ help: try ignoring the field: `children: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:127:29
[INFO] [stdout]     |
[INFO] [stdout] 127 |             TreeNode::Leaf{ key, value } => {
[INFO] [stdout]     |                             ^^^ help: try ignoring the field: `key: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:135:31
[INFO] [stdout]     |
[INFO] [stdout] 135 |             TreeNode::Branch{ key, children} => {
[INFO] [stdout]     |                               ^^^ help: try ignoring the field: `key: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/lib.rs:159:32
[INFO] [stdout]     |
[INFO] [stdout] 159 |             TreeNode::Branch { key, children } => {
[INFO] [stdout]     |                                ^^^ help: try ignoring the field: `key: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]    --> src/lib.rs:164:37
[INFO] [stdout]     |
[INFO] [stdout] 164 |                         if let Some(child) =
[INFO] [stdout]     |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:191:35
[INFO] [stdout]     |
[INFO] [stdout] 191 |             TreeNode::Leaf { key, value } => key,
[INFO] [stdout]     |                                   ^^^^^ help: try ignoring the field: `value: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]    --> src/lib.rs:192:37
[INFO] [stdout]     |
[INFO] [stdout] 192 |             TreeNode::Branch { key, children } =>
[INFO] [stdout]     |                                     ^^^^^^^^ help: try ignoring the field: `children: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/lib.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 |     fn new(line: &'a [u8]) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "529e6a923912347f5d864f606ca653346c2bdc54d93840703f7906d945e0f9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "529e6a923912347f5d864f606ca653346c2bdc54d93840703f7906d945e0f9c4", kill_on_drop: false }`
[INFO] [stdout] 529e6a923912347f5d864f606ca653346c2bdc54d93840703f7906d945e0f9c4