[INFO] fetching crate appconfig 0.1.4...
[INFO] checking appconfig-0.1.4 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate appconfig 0.1.4 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate appconfig 0.1.4 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate appconfig 0.1.4
[INFO] finished tweaking crates.io crate appconfig 0.1.4
[INFO] tweaked toml for crates.io crate appconfig 0.1.4 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e368bb4010a8701e4b89a3f55c9bb53a3795f607a6763618951391409074b0d9
[INFO] running `Command { std: "docker" "start" "-a" "e368bb4010a8701e4b89a3f55c9bb53a3795f607a6763618951391409074b0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e368bb4010a8701e4b89a3f55c9bb53a3795f607a6763618951391409074b0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e368bb4010a8701e4b89a3f55c9bb53a3795f607a6763618951391409074b0d9", kill_on_drop: false }`
[INFO] [stdout] e368bb4010a8701e4b89a3f55c9bb53a3795f607a6763618951391409074b0d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d09c93f536cdc72ba8224c59b310cf7dd495cdea06244003cc99aba454c9482
[INFO] running `Command { std: "docker" "start" "-a" "6d09c93f536cdc72ba8224c59b310cf7dd495cdea06244003cc99aba454c9482", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking anyhow v1.0.48
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking appconfig v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]   --> src/lib.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 | use std::{cell::RefCell, error::Error, ops::Deref, path::PathBuf, rc::Rc};
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]   --> src/lib.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 | use std::{cell::RefCell, error::Error, ops::Deref, path::PathBuf, rc::Rc};
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` 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 33.41s
[INFO] running `Command { std: "docker" "inspect" "6d09c93f536cdc72ba8224c59b310cf7dd495cdea06244003cc99aba454c9482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d09c93f536cdc72ba8224c59b310cf7dd495cdea06244003cc99aba454c9482", kill_on_drop: false }`
[INFO] [stdout] 6d09c93f536cdc72ba8224c59b310cf7dd495cdea06244003cc99aba454c9482