[INFO] cloning repository https://github.com/kinseytamsin/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kinseytamsin/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinseytamsin%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinseytamsin%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16a135c1689fcaa4f2e7e4dd708630fee87ebe61
[INFO] checking kinseytamsin/rlox against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinseytamsin%2Frlox" "/workspace/builds/worker-67/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-67/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kinseytamsin/rlox on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kinseytamsin/rlox
[INFO] finished tweaking git repo https://github.com/kinseytamsin/rlox
[INFO] tweaked toml for git repo https://github.com/kinseytamsin/rlox written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate git repo https://github.com/kinseytamsin/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71c5ac1793d18466b656338dcf014d0b16afa211035fec69a53fa345dcecd804
[INFO] running `Command { std: "docker" "start" "-a" "71c5ac1793d18466b656338dcf014d0b16afa211035fec69a53fa345dcecd804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71c5ac1793d18466b656338dcf014d0b16afa211035fec69a53fa345dcecd804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c5ac1793d18466b656338dcf014d0b16afa211035fec69a53fa345dcecd804", kill_on_drop: false }`
[INFO] [stdout] 71c5ac1793d18466b656338dcf014d0b16afa211035fec69a53fa345dcecd804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f129375116ba9d1faaed0ab31f84a589d9f1c92128852b5e04eb721960f7c23a
[INFO] running `Command { std: "docker" "start" "-a" "f129375116ba9d1faaed0ab31f84a589d9f1c92128852b5e04eb721960f7c23a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling syn v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking generate-ast v0.1.0 (/opt/rustwide/workdir/tool/generate-ast)
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir/rlox)
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> rlox/src/token.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lexeme`
[INFO] [stdout]   --> rlox/src/token.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     lexeme: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `literal`
[INFO] [stdout]   --> rlox/src/token.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     literal: Option<Literal<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]   --> rlox/src/token.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     line: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> rlox/src/token.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lexeme`
[INFO] [stdout]   --> rlox/src/token.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     lexeme: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `literal`
[INFO] [stdout]   --> rlox/src/token.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     literal: Option<Literal<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]   --> rlox/src/token.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     line: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.16s
[INFO] running `Command { std: "docker" "inspect" "f129375116ba9d1faaed0ab31f84a589d9f1c92128852b5e04eb721960f7c23a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f129375116ba9d1faaed0ab31f84a589d9f1c92128852b5e04eb721960f7c23a", kill_on_drop: false }`
[INFO] [stdout] f129375116ba9d1faaed0ab31f84a589d9f1c92128852b5e04eb721960f7c23a