[INFO] cloning repository https://github.com/mathcelo/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mathcelo/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathcelo%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathcelo%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 006f4d41dd23c36e4426ad1db06b7c89cfad7547
[INFO] checking mathcelo/rlox against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathcelo%2Frlox" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mathcelo/rlox
[INFO] finished tweaking git repo https://github.com/mathcelo/rlox
[INFO] tweaked toml for git repo https://github.com/mathcelo/rlox written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mathcelo/rlox on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mathcelo/rlox 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" "+6284d7b4bd27983dba388146648ab844ca7d032f" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 318bef8d8c84550a04c20b3aa4e5a7e000759d9a0532fd7a0807b8e65ceb457e
[INFO] running `Command { std: "docker" "start" "-a" "318bef8d8c84550a04c20b3aa4e5a7e000759d9a0532fd7a0807b8e65ceb457e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "318bef8d8c84550a04c20b3aa4e5a7e000759d9a0532fd7a0807b8e65ceb457e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "318bef8d8c84550a04c20b3aa4e5a7e000759d9a0532fd7a0807b8e65ceb457e", kill_on_drop: false }`
[INFO] [stdout] 318bef8d8c84550a04c20b3aa4e5a7e000759d9a0532fd7a0807b8e65ceb457e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 588aa41d37076e10b9139250bc516dccf39802f3cc763afefc5182c43c6bbe5d
[INFO] running `Command { std: "docker" "start" "-a" "588aa41d37076e10b9139250bc516dccf39802f3cc763afefc5182c43c6bbe5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking winnow v0.7.14
[INFO] [stderr]     Checking toml_writer v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]     Checking serde_spanned v1.0.4
[INFO] [stderr]     Checking toml v0.9.11+spec-1.1.0
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Boolean` and `Nil` are never constructed
[INFO] [stdout]  --> src/lox/token.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Literal {
[INFO] [stdout]   |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |     Boolean(bool),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 8 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Boolean` and `Nil` are never constructed
[INFO] [stdout]  --> src/lox/token.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Literal {
[INFO] [stdout]   |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |     Boolean(bool),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 8 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "588aa41d37076e10b9139250bc516dccf39802f3cc763afefc5182c43c6bbe5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588aa41d37076e10b9139250bc516dccf39802f3cc763afefc5182c43c6bbe5d", kill_on_drop: false }`
[INFO] [stdout] 588aa41d37076e10b9139250bc516dccf39802f3cc763afefc5182c43c6bbe5d