[INFO] cloning repository https://github.com/ElementG9/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ElementG9/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElementG9%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElementG9%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6a90cc51889c55cd1a79aea44169e20eb1ec6be
[INFO] testing ElementG9/rlox against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElementG9%2Frlox" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ElementG9/rlox on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ElementG9/rlox
[INFO] finished tweaking git repo https://github.com/ElementG9/rlox
[INFO] tweaked toml for git repo https://github.com/ElementG9/rlox written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ElementG9/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e22318016515d117129acf46f83e50d9b122272927253ba5569ffa38a87af243
[INFO] running `Command { std: "docker" "start" "-a" "e22318016515d117129acf46f83e50d9b122272927253ba5569ffa38a87af243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e22318016515d117129acf46f83e50d9b122272927253ba5569ffa38a87af243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22318016515d117129acf46f83e50d9b122272927253ba5569ffa38a87af243", kill_on_drop: false }`
[INFO] [stdout] e22318016515d117129acf46f83e50d9b122272927253ba5569ffa38a87af243
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94f0d10fdc916159ef1cbe409d76ee6e705b087c618d34da6cbee0959573c853
[INFO] running `Command { std: "docker" "start" "-a" "94f0d10fdc916159ef1cbe409d76ee6e705b087c618d34da6cbee0959573c853", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "94f0d10fdc916159ef1cbe409d76ee6e705b087c618d34da6cbee0959573c853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f0d10fdc916159ef1cbe409d76ee6e705b087c618d34da6cbee0959573c853", kill_on_drop: false }`
[INFO] [stdout] 94f0d10fdc916159ef1cbe409d76ee6e705b087c618d34da6cbee0959573c853
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0e609e86ea911b08802a7ac1e705c4c4dfb4df2e1e3c8437bfb90d8605c6943
[INFO] running `Command { std: "docker" "start" "-a" "b0e609e86ea911b08802a7ac1e705c4c4dfb4df2e1e3c8437bfb90d8605c6943", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/scanner.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[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/scanner.rs:429:13
[INFO] [stdout]     |
[INFO] [stdout] 429 |         let mut t = s.scan_tokens();
[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: function is never used: `test_scanner_scanning`
[INFO] [stdout]    --> src/scanner.rs:427:8
[INFO] [stdout]     |
[INFO] [stdout] 427 |     fn test_scanner_scanning() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox-a8a7c31532a649f4)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rlox-db3db105cc60d2a6)
[INFO] running `Command { std: "docker" "inspect" "b0e609e86ea911b08802a7ac1e705c4c4dfb4df2e1e3c8437bfb90d8605c6943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e609e86ea911b08802a7ac1e705c4c4dfb4df2e1e3c8437bfb90d8605c6943", kill_on_drop: false }`
[INFO] [stdout] b0e609e86ea911b08802a7ac1e705c4c4dfb4df2e1e3c8437bfb90d8605c6943
[INFO] running `Command { std: "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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8866e3820fba05980c30b00707380b0211a8f0088ed648dd574264eaa6c41934
[INFO] running `Command { std: "docker" "start" "-a" "8866e3820fba05980c30b00707380b0211a8f0088ed648dd574264eaa6c41934", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/scanner.rs:438:17
[INFO] [stderr]     |
[INFO] [stderr] 438 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:429:13
[INFO] [stderr]     |
[INFO] [stderr] 429 |         let mut t = s.scan_tokens();
[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: function is never used: `test_scanner_scanning`
[INFO] [stderr]    --> src/scanner.rs:427:8
[INFO] [stderr]     |
[INFO] [stderr] 427 |     fn test_scanner_scanning() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rlox` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.86s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rlox-a8a7c31532a649f4)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test scanner::tests::test_char_at ... ok
[INFO] [stdout] test scanner::tests::test_is_alphanumeric ... ok
[INFO] [stdout] test scanner::tests::test_is_alpha ... ok
[INFO] [stdout] test scanner::tests::test_is_digit ... ok
[INFO] [stdout] test scanner::tests::test_str_len ... ok
[INFO] [stdout] test scanner::tests::test_scanner_constructor ... ok
[INFO] [stdout] test scanner::tests::test_substring ... ok
[INFO] [stdout] test scanner::tests::test_token_constructor ... ok
[INFO] [stdout] test scanner::tests::test_token_to_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rlox-db3db105cc60d2a6)
[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] [stderr]    Doc-tests rlox
[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" "8866e3820fba05980c30b00707380b0211a8f0088ed648dd574264eaa6c41934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8866e3820fba05980c30b00707380b0211a8f0088ed648dd574264eaa6c41934", kill_on_drop: false }`
[INFO] [stdout] 8866e3820fba05980c30b00707380b0211a8f0088ed648dd574264eaa6c41934