[INFO] cloning repository https://github.com/maroider/git2_things
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maroider/git2_things" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaroider%2Fgit2_things"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaroider%2Fgit2_things'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bb6f8e50d7d327c553f6f535c7f9339d92995739
[INFO] checking maroider/git2_things against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaroider%2Fgit2_things" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maroider/git2_things on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/maroider/git2_things
[INFO] finished tweaking git repo https://github.com/maroider/git2_things
[INFO] tweaked toml for git repo https://github.com/maroider/git2_things written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/maroider/git2_things already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df9037e40e45d5ee9173de4506365d8ab2059408a4fd279079f2a456b5a24248
[INFO] running `"docker" "start" "-a" "df9037e40e45d5ee9173de4506365d8ab2059408a4fd279079f2a456b5a24248"`
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling libssh2-sys v0.2.13
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]     Checking git2 v0.10.1
[INFO] [stderr]     Checking git2_things v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `tree_diff`
[INFO] [stderr]   --> src/commands.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let tree_diff = dbg!(tree.diff(&older_tree));
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_tree_diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/commands.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn glcm(path: PathBuf) {
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayTree`
[INFO] [stderr]   --> src/commands.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct DisplayTree {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayTreeItem`
[INFO] [stderr]   --> src/commands.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | struct DisplayTreeItem {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `filemode`
[INFO] [stderr]    --> src/commands.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn filemode(&self) -> FileMode {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tree_diff`
[INFO] [stderr]   --> src/commands.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let tree_diff = dbg!(tree.diff(&older_tree));
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_tree_diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/commands.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn glcm(path: PathBuf) {
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayTree`
[INFO] [stderr]   --> src/commands.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct DisplayTree {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayTreeItem`
[INFO] [stderr]   --> src/commands.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | struct DisplayTreeItem {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `filemode`
[INFO] [stderr]    --> src/commands.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn filemode(&self) -> FileMode {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `"docker" "inspect" "df9037e40e45d5ee9173de4506365d8ab2059408a4fd279079f2a456b5a24248"`
[INFO] running `"docker" "rm" "-f" "df9037e40e45d5ee9173de4506365d8ab2059408a4fd279079f2a456b5a24248"`
[INFO] [stdout] df9037e40e45d5ee9173de4506365d8ab2059408a4fd279079f2a456b5a24248