[INFO] fetching crate lts 0.3.1...
[INFO] checking lts-0.3.1 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate lts 0.3.1 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate lts 0.3.1 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lts 0.3.1
[INFO] finished tweaking crates.io crate lts 0.3.1
[INFO] tweaked toml for crates.io crate lts 0.3.1 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate crates.io crate lts 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 001e92727651b93f97e52877527a5861fde26393bb9d98d4a9e8263b56c6df9f
[INFO] running `Command { std: "docker" "start" "-a" "001e92727651b93f97e52877527a5861fde26393bb9d98d4a9e8263b56c6df9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "001e92727651b93f97e52877527a5861fde26393bb9d98d4a9e8263b56c6df9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001e92727651b93f97e52877527a5861fde26393bb9d98d4a9e8263b56c6df9f", kill_on_drop: false }`
[INFO] [stdout] 001e92727651b93f97e52877527a5861fde26393bb9d98d4a9e8263b56c6df9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ae65d982df58386e8d405cb0c1328c83c2d95b8dc46dde87dca2d8abbf3bb9c
[INFO] running `Command { std: "docker" "start" "-a" "7ae65d982df58386e8d405cb0c1328c83c2d95b8dc46dde87dca2d8abbf3bb9c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking lts v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/regfork.rs:318:21
[INFO] [stdout]     |
[INFO] [stdout] 318 |         if let Some(path) = CargoConfig::cargo_private_custom_git_repo_path(&self.git_checkout) {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/regfork.rs:318:21
[INFO] [stdout]     |
[INFO] [stdout] 318 |         if let Some(path) = CargoConfig::cargo_private_custom_git_repo_path(&self.git_checkout) {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[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 15.09s
[INFO] running `Command { std: "docker" "inspect" "7ae65d982df58386e8d405cb0c1328c83c2d95b8dc46dde87dca2d8abbf3bb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae65d982df58386e8d405cb0c1328c83c2d95b8dc46dde87dca2d8abbf3bb9c", kill_on_drop: false }`
[INFO] [stdout] 7ae65d982df58386e8d405cb0c1328c83c2d95b8dc46dde87dca2d8abbf3bb9c