[INFO] fetching crate prs-lib 0.2.15...
[INFO] checking prs-lib-0.2.15 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate prs-lib 0.2.15 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate prs-lib 0.2.15 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prs-lib 0.2.15
[INFO] finished tweaking crates.io crate prs-lib 0.2.15
[INFO] tweaked toml for crates.io crate prs-lib 0.2.15 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86b9037e23b83ff8a24686f735cb02767c0839715a665bab4c01620c9883b4a0
[INFO] running `Command { std: "docker" "start" "-a" "86b9037e23b83ff8a24686f735cb02767c0839715a665bab4c01620c9883b4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86b9037e23b83ff8a24686f735cb02767c0839715a665bab4c01620c9883b4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86b9037e23b83ff8a24686f735cb02767c0839715a665bab4c01620c9883b4a0", kill_on_drop: false }`
[INFO] [stdout] 86b9037e23b83ff8a24686f735cb02767c0839715a665bab4c01620c9883b4a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03b1f9cc987a36860ca0f81f9d2757829b88fcb5ab5418cf594d9035c10e8954
[INFO] running `Command { std: "docker" "start" "-a" "03b1f9cc987a36860ca0f81f9d2757829b88fcb5ab5418cf594d9035c10e8954", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling prs-lib v0.2.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking version-compare v0.0.11
[INFO] [stderr]     Checking git-state v0.1.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking secstr v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stdout] warning: unused imports: `Command`, `Stdio`
[INFO] [stdout]  --> src/util/fs.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Command`, `Stdio`
[INFO] [stdout]  --> src/util/fs.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::{Command, Stdio};
[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 19.66s
[INFO] running `Command { std: "docker" "inspect" "03b1f9cc987a36860ca0f81f9d2757829b88fcb5ab5418cf594d9035c10e8954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03b1f9cc987a36860ca0f81f9d2757829b88fcb5ab5418cf594d9035c10e8954", kill_on_drop: false }`
[INFO] [stdout] 03b1f9cc987a36860ca0f81f9d2757829b88fcb5ab5418cf594d9035c10e8954