[INFO] fetching crate git-anger-library 0.8.1...
[INFO] checking git-anger-library-0.8.1 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate git-anger-library 0.8.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate git-anger-library 0.8.1 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 745fec57311251b9c4a7174d804c5fe9618307a028eb06313e53b685c8a2b627
[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" "745fec57311251b9c4a7174d804c5fe9618307a028eb06313e53b685c8a2b627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "745fec57311251b9c4a7174d804c5fe9618307a028eb06313e53b685c8a2b627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745fec57311251b9c4a7174d804c5fe9618307a028eb06313e53b685c8a2b627", kill_on_drop: false }`
[INFO] [stdout] 745fec57311251b9c4a7174d804c5fe9618307a028eb06313e53b685c8a2b627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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] 1854ca262513c2da4ae3ea58cc8edbc9b964d41314d3d317b62ac7c83a07990a
[INFO] running `Command { std: "docker" "start" "-a" "1854ca262513c2da4ae3ea58cc8edbc9b964d41314d3d317b62ac7c83a07990a", kill_on_drop: false }`
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libgit2-sys v0.12.18+1.1.0
[INFO] [stderr]     Checking git2 v0.13.17
[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 29.84s
[INFO] running `Command { std: "docker" "inspect" "1854ca262513c2da4ae3ea58cc8edbc9b964d41314d3d317b62ac7c83a07990a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1854ca262513c2da4ae3ea58cc8edbc9b964d41314d3d317b62ac7c83a07990a", kill_on_drop: false }`
[INFO] [stdout] 1854ca262513c2da4ae3ea58cc8edbc9b964d41314d3d317b62ac7c83a07990a