[INFO] cloning repository https://github.com/sagudev/t-loop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sagudev/t-loop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsagudev%2Ft-loop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsagudev%2Ft-loop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4575f0130719adbaefa8c157da9d31a87d29bb6
[INFO] testing sagudev/t-loop against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsagudev%2Ft-loop" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sagudev/t-loop on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sagudev/t-loop
[INFO] finished tweaking git repo https://github.com/sagudev/t-loop
[INFO] tweaked toml for git repo https://github.com/sagudev/t-loop written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/sagudev/t-loop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a730b307dedbbeb6f4b1c32a0a1c7a38c160cdd23b1bc046df9ba29a4a7273ab
[INFO] running `Command { std: "docker" "start" "-a" "a730b307dedbbeb6f4b1c32a0a1c7a38c160cdd23b1bc046df9ba29a4a7273ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a730b307dedbbeb6f4b1c32a0a1c7a38c160cdd23b1bc046df9ba29a4a7273ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a730b307dedbbeb6f4b1c32a0a1c7a38c160cdd23b1bc046df9ba29a4a7273ab", kill_on_drop: false }`
[INFO] [stdout] a730b307dedbbeb6f4b1c32a0a1c7a38c160cdd23b1bc046df9ba29a4a7273ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 823e614a469fe3ba713b890f5349b8f612efc31ac017a5a785392a7e18996166
[INFO] running `Command { std: "docker" "start" "-a" "823e614a469fe3ba713b890f5349b8f612efc31ac017a5a785392a7e18996166", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/main.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Ok(n) => {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_n`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "823e614a469fe3ba713b890f5349b8f612efc31ac017a5a785392a7e18996166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823e614a469fe3ba713b890f5349b8f612efc31ac017a5a785392a7e18996166", kill_on_drop: false }`
[INFO] [stdout] 823e614a469fe3ba713b890f5349b8f612efc31ac017a5a785392a7e18996166
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c83cd5136318a67cda52f35ea2a1ddd00781e2ef7d20cb46298cdd5f0a089689
[INFO] running `Command { std: "docker" "start" "-a" "c83cd5136318a67cda52f35ea2a1ddd00781e2ef7d20cb46298cdd5f0a089689", kill_on_drop: false }`
[INFO] [stderr]    Compiling project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/main.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Ok(n) => {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_n`
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "c83cd5136318a67cda52f35ea2a1ddd00781e2ef7d20cb46298cdd5f0a089689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c83cd5136318a67cda52f35ea2a1ddd00781e2ef7d20cb46298cdd5f0a089689", kill_on_drop: false }`
[INFO] [stdout] c83cd5136318a67cda52f35ea2a1ddd00781e2ef7d20cb46298cdd5f0a089689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9dad4d0b346c59cc773aec689f5f7bf955e8e9e8fa5238fe8b0044f0d81f3480
[INFO] running `Command { std: "docker" "start" "-a" "9dad4d0b346c59cc773aec689f5f7bf955e8e9e8fa5238fe8b0044f0d81f3480", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:19:16
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 19 |             Ok(n) => {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `project` (bin "project" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/project-41424f80f1f4b3c9)
[INFO] running `Command { std: "docker" "inspect" "9dad4d0b346c59cc773aec689f5f7bf955e8e9e8fa5238fe8b0044f0d81f3480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dad4d0b346c59cc773aec689f5f7bf955e8e9e8fa5238fe8b0044f0d81f3480", kill_on_drop: false }`
[INFO] [stdout] 9dad4d0b346c59cc773aec689f5f7bf955e8e9e8fa5238fe8b0044f0d81f3480