[INFO] updating cached repository https://github.com/Chili-Bebber/dotted
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] afa7beb755740cdb2e6d011d254dc56d1003c9ae
[INFO] checking Chili-Bebber/dotted against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChili-Bebber%2Fdotted" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Chili-Bebber/dotted on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Chili-Bebber/dotted
[INFO] finished tweaking git repo https://github.com/Chili-Bebber/dotted
[INFO] tweaked toml for git repo https://github.com/Chili-Bebber/dotted written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Chili-Bebber/dotted already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+e922e6444795ab795fab1943288aee3d543699b8" "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] e42200183cd247a2e91ede994f4e53e660a0bd2850ab0ab570ee5a66439fb2f1
[INFO] running `"docker" "start" "-a" "e42200183cd247a2e91ede994f4e53e660a0bd2850ab0ab570ee5a66439fb2f1"`
[INFO] [stderr]     Checking dotted v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/package/mod.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         let mut successfully_copied = files.copy_to(&mut to_list);
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/package/mod.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let mut files = added_files.file_paths();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/file_list/mod.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let mut to_list = to_list.file_paths().iter();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable`
[INFO] [stderr]   --> src/package/mod.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn enable(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `symlink_to`
[INFO] [stderr]    --> src/file_list/mod.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn symlink_to(&self, to_list:&mut FileList) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/package/mod.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         let mut successfully_copied = files.copy_to(&mut to_list);
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/package/mod.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let mut files = added_files.file_paths();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/file_list/mod.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let mut to_list = to_list.file_paths().iter();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enable`
[INFO] [stderr]   --> src/package/mod.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn enable(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `symlink_to`
[INFO] [stderr]    --> src/file_list/mod.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn symlink_to(&self, to_list:&mut FileList) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "e42200183cd247a2e91ede994f4e53e660a0bd2850ab0ab570ee5a66439fb2f1"`
[INFO] running `"docker" "rm" "-f" "e42200183cd247a2e91ede994f4e53e660a0bd2850ab0ab570ee5a66439fb2f1"`
[INFO] [stdout] e42200183cd247a2e91ede994f4e53e660a0bd2850ab0ab570ee5a66439fb2f1