[INFO] cloning repository https://github.com/ticklepoke/rust-lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ticklepoke/rust-lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticklepoke%2Frust-lox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticklepoke%2Frust-lox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d08c0953a6485ba9c54ee37642b763e7757cc3e
[INFO] checking ticklepoke/rust-lox against try#fc545c6b951a304df08b327c158f92678582f435 for pr-140557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticklepoke%2Frust-lox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ticklepoke/rust-lox on toolchain fc545c6b951a304df08b327c158f92678582f435
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ticklepoke/rust-lox
[INFO] finished tweaking git repo https://github.com/ticklepoke/rust-lox
[INFO] tweaked toml for git repo https://github.com/ticklepoke/rust-lox written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ticklepoke/rust-lox 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" "+fc545c6b951a304df08b327c158f92678582f435" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking ticklepoke/rust-lox against try#fc545c6b951a304df08b327c158f92678582f435 for pr-140557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticklepoke%2Frust-lox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ticklepoke/rust-lox on toolchain fc545c6b951a304df08b327c158f92678582f435
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ticklepoke/rust-lox
[INFO] finished tweaking git repo https://github.com/ticklepoke/rust-lox
[INFO] tweaked toml for git repo https://github.com/ticklepoke/rust-lox written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ticklepoke/rust-lox 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" "+fc545c6b951a304df08b327c158f92678582f435" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b02d2e7c4fe9437ddbf55c67dd14f724b8f0878cf767518d4531e92f45ec113
[INFO] running `Command { std: "docker" "start" "-a" "3b02d2e7c4fe9437ddbf55c67dd14f724b8f0878cf767518d4531e92f45ec113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b02d2e7c4fe9437ddbf55c67dd14f724b8f0878cf767518d4531e92f45ec113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b02d2e7c4fe9437ddbf55c67dd14f724b8f0878cf767518d4531e92f45ec113", kill_on_drop: false }`
[INFO] [stdout] 3b02d2e7c4fe9437ddbf55c67dd14f724b8f0878cf767518d4531e92f45ec113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a9c781eb5bf823369a5270a0097e3a944dba34a8a0886f240e01a6fb862073f
[INFO] running `Command { std: "docker" "start" "-a" "4a9c781eb5bf823369a5270a0097e3a944dba34a8a0886f240e01a6fb862073f", kill_on_drop: false }`
[INFO] [stderr]     Checking utils v0.1.0 (/opt/rustwide/workdir/utils)
[INFO] [stderr]     Checking vm v0.1.0 (/opt/rustwide/workdir/vm)
[INFO] [stderr]     Checking frontend v0.1.0 (/opt/rustwide/workdir/frontend)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> frontend/src/literal.rs:52:67
[INFO] [stdout]    |
[INFO] [stdout] 52 |             (&Literal::String(ref s), &Literal::String(ref o)) => (s == o),
[INFO] [stdout]    |                                                                   ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -             (&Literal::String(ref s), &Literal::String(ref o)) => (s == o),
[INFO] [stdout] 52 +             (&Literal::String(ref s), &Literal::String(ref o)) => s == o,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> frontend/src/literal.rs:53:67
[INFO] [stdout]    |
[INFO] [stdout] 53 |             (&Literal::Number(ref s), &Literal::Number(ref o)) => (s == o),
[INFO] [stdout]    |                                                                   ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 53 -             (&Literal::Number(ref s), &Literal::Number(ref o)) => (s == o),
[INFO] [stdout] 53 +             (&Literal::Number(ref s), &Literal::Number(ref o)) => s == o,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> frontend/src/literal.rs:54:69
[INFO] [stdout]    |
[INFO] [stdout] 54 |             (&Literal::Boolean(ref s), &Literal::Boolean(ref o)) => (s == o),
[INFO] [stdout]    |                                                                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -             (&Literal::Boolean(ref s), &Literal::Boolean(ref o)) => (s == o),
[INFO] [stdout] 54 +             (&Literal::Boolean(ref s), &Literal::Boolean(ref o)) => s == o,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> frontend/src/literal.rs:52:67
[INFO] [stdout]    |
[INFO] [stdout] 52 |             (&Literal::String(ref s), &Literal::String(ref o)) => (s == o),
[INFO] [stdout]    |                                                                   ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -             (&Literal::String(ref s), &Literal::String(ref o)) => (s == o),
[INFO] [stdout] 52 +             (&Literal::String(ref s), &Literal::String(ref o)) => s == o,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> frontend/src/literal.rs:53:67
[INFO] [stdout]    |
[INFO] [stdout] 53 |             (&Literal::Number(ref s), &Literal::Number(ref o)) => (s == o),
[INFO] [stdout]    |                                                                   ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 53 -             (&Literal::Number(ref s), &Literal::Number(ref o)) => (s == o),
[INFO] [stdout] 53 +             (&Literal::Number(ref s), &Literal::Number(ref o)) => s == o,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> frontend/src/literal.rs:54:69
[INFO] [stdout]    |
[INFO] [stdout] 54 |             (&Literal::Boolean(ref s), &Literal::Boolean(ref o)) => (s == o),
[INFO] [stdout]    |                                                                     ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -             (&Literal::Boolean(ref s), &Literal::Boolean(ref o)) => (s == o),
[INFO] [stdout] 54 +             (&Literal::Boolean(ref s), &Literal::Boolean(ref o)) => s == o,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir/interpreter)
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir/lox)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "4a9c781eb5bf823369a5270a0097e3a944dba34a8a0886f240e01a6fb862073f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9c781eb5bf823369a5270a0097e3a944dba34a8a0886f240e01a6fb862073f", kill_on_drop: false }`
[INFO] [stdout] 4a9c781eb5bf823369a5270a0097e3a944dba34a8a0886f240e01a6fb862073f