[INFO] cloning repository https://github.com/solaryssky/speed_tester
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/solaryssky/speed_tester" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolaryssky%2Fspeed_tester", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolaryssky%2Fspeed_tester'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a002a5a53da95acafb844fa6efb424a863fe83ab
[INFO] checking solaryssky/speed_tester against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolaryssky%2Fspeed_tester" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/solaryssky/speed_tester
[INFO] finished tweaking git repo https://github.com/solaryssky/speed_tester
[INFO] tweaked toml for git repo https://github.com/solaryssky/speed_tester written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/solaryssky/speed_tester on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/solaryssky/speed_tester already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5411055f9ebff612585c767a7ee0067a1304d4560f72bd449105e6e66f38115e
[INFO] running `Command { std: "docker" "start" "-a" "5411055f9ebff612585c767a7ee0067a1304d4560f72bd449105e6e66f38115e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5411055f9ebff612585c767a7ee0067a1304d4560f72bd449105e6e66f38115e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5411055f9ebff612585c767a7ee0067a1304d4560f72bd449105e6e66f38115e", kill_on_drop: false }`
[INFO] [stdout] 5411055f9ebff612585c767a7ee0067a1304d4560f72bd449105e6e66f38115e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88d4f0ee588d8c4cebfa41c4078937596e5750e5f913344a3dabb43e4cc988bc
[INFO] running `Command { std: "docker" "start" "-a" "88d4f0ee588d8c4cebfa41c4078937596e5750e5f913344a3dabb43e4cc988bc", kill_on_drop: false }`
[INFO] [stderr]     Checking gethostname v0.4.3
[INFO] [stderr]     Checking xml-rs v0.8.19
[INFO] [stderr]     Checking speed_tester v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/main.rs:104:15
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (key, value) in &hash_map_filter {
[INFO] [stdout]     |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirs`
[INFO] [stdout]    --> src/main.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout] 113 |               let dirs = parts[5].to_owned() +  "test";                   
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_dirs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/main.rs:118:57
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let result: String = speed_test(parts[0], parts[1], port.try_into().unwrap(), parts[3], parts[4], dirs);
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/main.rs:104:15
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (key, value) in &hash_map_filter {
[INFO] [stdout]     |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirs`
[INFO] [stdout]    --> src/main.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout] 113 |               let dirs = parts[5].to_owned() +  "test";                   
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_dirs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `speed_tester` (bin "speed_tester") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/main.rs:118:57
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let result: String = speed_test(parts[0], parts[1], port.try_into().unwrap(), parts[3], parts[4], dirs);
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `speed_tester` (bin "speed_tester" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "88d4f0ee588d8c4cebfa41c4078937596e5750e5f913344a3dabb43e4cc988bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d4f0ee588d8c4cebfa41c4078937596e5750e5f913344a3dabb43e4cc988bc", kill_on_drop: false }`
[INFO] [stdout] 88d4f0ee588d8c4cebfa41c4078937596e5750e5f913344a3dabb43e4cc988bc