[INFO] cloning repository https://github.com/learn-you-a-rust/loops_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/learn-you-a-rust/loops_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearn-you-a-rust%2Floops_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearn-you-a-rust%2Floops_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfdbe339436b324208ad2441b5bc037ecd356e15
[INFO] testing learn-you-a-rust/loops_practice against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearn-you-a-rust%2Floops_practice" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/learn-you-a-rust/loops_practice on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/learn-you-a-rust/loops_practice
[INFO] finished tweaking git repo https://github.com/learn-you-a-rust/loops_practice
[INFO] tweaked toml for git repo https://github.com/learn-you-a-rust/loops_practice written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/learn-you-a-rust/loops_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc0028590f24463e68ee60e375948eb1cfe0b2674adbb400579ecf4c56c3e542
[INFO] running `Command { std: "docker" "start" "-a" "cc0028590f24463e68ee60e375948eb1cfe0b2674adbb400579ecf4c56c3e542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc0028590f24463e68ee60e375948eb1cfe0b2674adbb400579ecf4c56c3e542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc0028590f24463e68ee60e375948eb1cfe0b2674adbb400579ecf4c56c3e542", kill_on_drop: false }`
[INFO] [stdout] cc0028590f24463e68ee60e375948eb1cfe0b2674adbb400579ecf4c56c3e542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63775f7d8cd9a253d610bb60907a90e89c955aede32faf015e45d59b4d77419b
[INFO] running `Command { std: "docker" "start" "-a" "63775f7d8cd9a253d610bb60907a90e89c955aede32faf015e45d59b4d77419b", kill_on_drop: false }`
[INFO] [stderr]    Compiling loops_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fahrenheit_to_celsius_table`
[INFO] [stdout]  --> src/main.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fahrenheit_to_celsius_table() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 0.74s
[INFO] running `Command { std: "docker" "inspect" "63775f7d8cd9a253d610bb60907a90e89c955aede32faf015e45d59b4d77419b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63775f7d8cd9a253d610bb60907a90e89c955aede32faf015e45d59b4d77419b", kill_on_drop: false }`
[INFO] [stdout] 63775f7d8cd9a253d610bb60907a90e89c955aede32faf015e45d59b4d77419b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73aee3ecfe3d85110f263479df9c18ea5934bef1d66f3d8901c0e7492cda6985
[INFO] running `Command { std: "docker" "start" "-a" "73aee3ecfe3d85110f263479df9c18ea5934bef1d66f3d8901c0e7492cda6985", kill_on_drop: false }`
[INFO] [stderr]    Compiling loops_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fahrenheit_to_celsius_table`
[INFO] [stdout]  --> src/main.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fahrenheit_to_celsius_table() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 0.27s
[INFO] running `Command { std: "docker" "inspect" "73aee3ecfe3d85110f263479df9c18ea5934bef1d66f3d8901c0e7492cda6985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73aee3ecfe3d85110f263479df9c18ea5934bef1d66f3d8901c0e7492cda6985", kill_on_drop: false }`
[INFO] [stdout] 73aee3ecfe3d85110f263479df9c18ea5934bef1d66f3d8901c0e7492cda6985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4653a998af775c20b80f73a67f1abbf9345284054c5cb9722f756136e8cbc99c
[INFO] running `Command { std: "docker" "start" "-a" "4653a998af775c20b80f73a67f1abbf9345284054c5cb9722f756136e8cbc99c", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `fahrenheit_to_celsius_table`
[INFO] [stderr]  --> src/main.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn fahrenheit_to_celsius_table() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `loops_practice` (bin "loops_practice" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/loops_practice-95a02b1bd8fc80de)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4653a998af775c20b80f73a67f1abbf9345284054c5cb9722f756136e8cbc99c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4653a998af775c20b80f73a67f1abbf9345284054c5cb9722f756136e8cbc99c", kill_on_drop: false }`
[INFO] [stdout] 4653a998af775c20b80f73a67f1abbf9345284054c5cb9722f756136e8cbc99c