[INFO] fetching crate git-anger-library 0.8.1...
[INFO] checking git-anger-library-0.8.1 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate git-anger-library 0.8.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate git-anger-library 0.8.1 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate git-anger-library 0.8.1
[INFO] finished tweaking crates.io crate git-anger-library 0.8.1
[INFO] tweaked toml for crates.io crate git-anger-library 0.8.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73cd8b47a79a42d24d77c80469220268bf0611ed4330c7722ffce4a8ab771591
[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" "73cd8b47a79a42d24d77c80469220268bf0611ed4330c7722ffce4a8ab771591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73cd8b47a79a42d24d77c80469220268bf0611ed4330c7722ffce4a8ab771591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73cd8b47a79a42d24d77c80469220268bf0611ed4330c7722ffce4a8ab771591", kill_on_drop: false }`
[INFO] [stdout] 73cd8b47a79a42d24d77c80469220268bf0611ed4330c7722ffce4a8ab771591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93d300188fc130d5834ab1b0ab3df4cfeda4e745ebb06b4e9b958603a5ee868f
[INFO] running `Command { std: "docker" "start" "-a" "93d300188fc130d5834ab1b0ab3df4cfeda4e745ebb06b4e9b958603a5ee868f", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]     Checking git2 v0.13.20
[INFO] [stderr]     Checking git-anger-library v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `io::Write`, `io`
[INFO] [stdout]  --> src/repo.rs:8:52
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{collections::HashMap, env, error::Error, io, io::Write, path::Path};
[INFO] [stdout]   |                                                    ^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io::Write`, `io`
[INFO] [stdout]  --> src/repo.rs:8:52
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{collections::HashMap, env, error::Error, io, io::Write, path::Path};
[INFO] [stdout]   |                                                    ^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `total_naughty_authors`
[INFO] [stdout]   --> src/repo.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn total_naughty_authors(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `total_naughty_authors`
[INFO] [stdout]   --> src/repo.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn total_naughty_authors(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.20s
[INFO] running `Command { std: "docker" "inspect" "93d300188fc130d5834ab1b0ab3df4cfeda4e745ebb06b4e9b958603a5ee868f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d300188fc130d5834ab1b0ab3df4cfeda4e745ebb06b4e9b958603a5ee868f", kill_on_drop: false }`
[INFO] [stdout] 93d300188fc130d5834ab1b0ab3df4cfeda4e745ebb06b4e9b958603a5ee868f