[INFO] cloning repository https://github.com/JhettHeliks/SorterDOTio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JhettHeliks/SorterDOTio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJhettHeliks%2FSorterDOTio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJhettHeliks%2FSorterDOTio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 552e4f017f1553a110b8741d1b1f6e737bf3a7f8
[INFO] checking JhettHeliks/SorterDOTio against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJhettHeliks%2FSorterDOTio" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JhettHeliks/SorterDOTio on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JhettHeliks/SorterDOTio
[INFO] finished tweaking git repo https://github.com/JhettHeliks/SorterDOTio
[INFO] tweaked toml for git repo https://github.com/JhettHeliks/SorterDOTio written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/JhettHeliks/SorterDOTio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 214212ee2b42c96e053365d55910747fdd5ce69be1eafec5c9eb27d621c7818a
[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" "214212ee2b42c96e053365d55910747fdd5ce69be1eafec5c9eb27d621c7818a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "214212ee2b42c96e053365d55910747fdd5ce69be1eafec5c9eb27d621c7818a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "214212ee2b42c96e053365d55910747fdd5ce69be1eafec5c9eb27d621c7818a", kill_on_drop: false }`
[INFO] [stdout] 214212ee2b42c96e053365d55910747fdd5ce69be1eafec5c9eb27d621c7818a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 457ff5a37db56733db7222bdde00887632b7a338f0bbdaa03b202cb5e1f3d6b3
[INFO] running `Command { std: "docker" "start" "-a" "457ff5a37db56733db7222bdde00887632b7a338f0bbdaa03b202cb5e1f3d6b3", kill_on_drop: false }`
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking sorter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/main.rs:748:21
[INFO] [stdout]     |
[INFO] [stdout] 748 |                     'file: for file in fs::read_dir(&file_box.path()).expect("failed to get file list from directory") {
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:217:10
[INFO] [stdout]     |
[INFO] [stdout] 217 |     for (key, values) in map.iter(){
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:217:10
[INFO] [stdout]     |
[INFO] [stdout] 217 |     for (key, values) in map.iter(){
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:248:21
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 let mut in_box = file.clone().to_owned();
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:284:25
[INFO] [stdout]     |
[INFO] [stdout] 284 |                     let mut in_box = file.clone().to_owned();
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "457ff5a37db56733db7222bdde00887632b7a338f0bbdaa03b202cb5e1f3d6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "457ff5a37db56733db7222bdde00887632b7a338f0bbdaa03b202cb5e1f3d6b3", kill_on_drop: false }`
[INFO] [stdout] 457ff5a37db56733db7222bdde00887632b7a338f0bbdaa03b202cb5e1f3d6b3