[INFO] cloning repository https://github.com/Soj447/monk_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Soj447/monk_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSoj447%2Fmonk_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSoj447%2Fmonk_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a3e0dc962a6d87b0d8155326b38b3f27da2bfbb
[INFO] testing Soj447/monk_lang against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSoj447%2Fmonk_lang" "/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/Soj447/monk_lang on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Soj447/monk_lang
[INFO] finished tweaking git repo https://github.com/Soj447/monk_lang
[INFO] tweaked toml for git repo https://github.com/Soj447/monk_lang written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Soj447/monk_lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", 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] 2c579c02ce1b530913883b4f8a32c9289af9d2d0bf380b3e8991dfc49e03fe9a
[INFO] running `Command { std: "docker" "start" "-a" "2c579c02ce1b530913883b4f8a32c9289af9d2d0bf380b3e8991dfc49e03fe9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c579c02ce1b530913883b4f8a32c9289af9d2d0bf380b3e8991dfc49e03fe9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c579c02ce1b530913883b4f8a32c9289af9d2d0bf380b3e8991dfc49e03fe9a", kill_on_drop: false }`
[INFO] [stdout] 2c579c02ce1b530913883b4f8a32c9289af9d2d0bf380b3e8991dfc49e03fe9a
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8514f1b4e7339f314859df3bd7cd834398873e892879241945ccdd076b19a03d
[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" "8514f1b4e7339f314859df3bd7cd834398873e892879241945ccdd076b19a03d", kill_on_drop: false }`
[INFO] [stderr]    Compiling monk_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/repl/repl.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         let mut input = String::new();
[INFO] [stdout] 9  | |         print!(">>");
[INFO] [stdout] 10 | |         io::stdout().flush();
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |         }
[INFO] [stdout] 18 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 19 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl/repl.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8514f1b4e7339f314859df3bd7cd834398873e892879241945ccdd076b19a03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8514f1b4e7339f314859df3bd7cd834398873e892879241945ccdd076b19a03d", kill_on_drop: false }`
[INFO] [stdout] 8514f1b4e7339f314859df3bd7cd834398873e892879241945ccdd076b19a03d
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02b7eed13a249c3e7251bb1224743584b71ffc9d81c9369583b2f85031db54b6
[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" "02b7eed13a249c3e7251bb1224743584b71ffc9d81c9369583b2f85031db54b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/repl/repl.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         let mut input = String::new();
[INFO] [stdout] 9  | |         print!(">>");
[INFO] [stdout] 10 | |         io::stdout().flush();
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |         }
[INFO] [stdout] 18 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 19 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling monk_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl/repl.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/repl/repl.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         let mut input = String::new();
[INFO] [stdout] 9  | |         print!(">>");
[INFO] [stdout] 10 | |         io::stdout().flush();
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |         }
[INFO] [stdout] 18 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 19 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl/repl.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/repl/repl.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         repl_start();
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.58s
[INFO] running `Command { std: "docker" "inspect" "02b7eed13a249c3e7251bb1224743584b71ffc9d81c9369583b2f85031db54b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b7eed13a249c3e7251bb1224743584b71ffc9d81c9369583b2f85031db54b6", kill_on_drop: false }`
[INFO] [stdout] 02b7eed13a249c3e7251bb1224743584b71ffc9d81c9369583b2f85031db54b6
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6e040fea4651a3933aac6ff194270439c749e6df040f8ea610aef55822c0ac3
[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" "d6e040fea4651a3933aac6ff194270439c749e6df040f8ea610aef55822c0ac3", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/repl/repl.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | /     loop {
[INFO] [stderr] 8  | |         let mut input = String::new();
[INFO] [stderr] 9  | |         print!(">>");
[INFO] [stderr] 10 | |         io::stdout().flush();
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |         }
[INFO] [stderr] 18 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 19 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl/repl.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         io::stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/repl/repl.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | /     loop {
[INFO] [stderr] 8  | |         let mut input = String::new();
[INFO] [stderr] 9  | |         print!(">>");
[INFO] [stderr] 10 | |         io::stdout().flush();
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |         }
[INFO] [stderr] 18 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 19 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl/repl.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         io::stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/repl/repl.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |         repl_start();
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/monk_lang-f47dc1c01498f683)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lexer::lexer::tests::test_next_token ... ok
[INFO] [stdout] test repl::repl::tests::test_repl has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d6e040fea4651a3933aac6ff194270439c749e6df040f8ea610aef55822c0ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e040fea4651a3933aac6ff194270439c749e6df040f8ea610aef55822c0ac3", kill_on_drop: false }`
[INFO] [stdout] d6e040fea4651a3933aac6ff194270439c749e6df040f8ea610aef55822c0ac3