[INFO] cloning repository https://github.com/jacobjonsson/wlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobjonsson/wlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fwlang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fwlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d39d302404db0f974fa7df3d3bd9ba3b04c19d3
[INFO] checking jacobjonsson/wlang against master#30840c53f414b753cb08f14620906572f88dda4b for pr-123531
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fwlang" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jacobjonsson/wlang on toolchain 30840c53f414b753cb08f14620906572f88dda4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30840c53f414b753cb08f14620906572f88dda4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jacobjonsson/wlang
[INFO] finished tweaking git repo https://github.com/jacobjonsson/wlang
[INFO] tweaked toml for git repo https://github.com/jacobjonsson/wlang written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jacobjonsson/wlang 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" "+30840c53f414b753cb08f14620906572f88dda4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking jacobjonsson/wlang against try#18fb860b8a8e7ca508746882328061d0fe352543 for pr-123531
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fwlang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jacobjonsson/wlang on toolchain 18fb860b8a8e7ca508746882328061d0fe352543
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18fb860b8a8e7ca508746882328061d0fe352543" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jacobjonsson/wlang
[INFO] finished tweaking git repo https://github.com/jacobjonsson/wlang
[INFO] tweaked toml for git repo https://github.com/jacobjonsson/wlang written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jacobjonsson/wlang 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" "+18fb860b8a8e7ca508746882328061d0fe352543" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+18fb860b8a8e7ca508746882328061d0fe352543" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e56a787a7a53bc0538e24e4e8ea368b7e2813f3a54b6f60d8e09c3b39fb57fff
[INFO] running `Command { std: "docker" "start" "-a" "e56a787a7a53bc0538e24e4e8ea368b7e2813f3a54b6f60d8e09c3b39fb57fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e56a787a7a53bc0538e24e4e8ea368b7e2813f3a54b6f60d8e09c3b39fb57fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56a787a7a53bc0538e24e4e8ea368b7e2813f3a54b6f60d8e09c3b39fb57fff", kill_on_drop: false }`
[INFO] [stdout] e56a787a7a53bc0538e24e4e8ea368b7e2813f3a54b6f60d8e09c3b39fb57fff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+18fb860b8a8e7ca508746882328061d0fe352543" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21461ee9ec6dd9e878d4d739cdebf45d3fa7b41e9fa74f3e1052a6d04c9e9e68
[INFO] running `Command { std: "docker" "start" "-a" "21461ee9ec6dd9e878d4d739cdebf45d3fa7b41e9fa74f3e1052a6d04c9e9e68", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking syntax v0.1.0 (/opt/rustwide/workdir/crates/syntax)
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir/crates/lexer)
[INFO] [stdout] warning: fields `kind`, `start`, and `end` are never read
[INFO] [stdout]   --> crates/lexer/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct SyntaxError {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 10 |     kind: SyntaxErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     start: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     end: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `start`, and `end` are never read
[INFO] [stdout]   --> crates/lexer/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct SyntaxError {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 10 |     kind: SyntaxErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     start: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     end: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyntaxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "21461ee9ec6dd9e878d4d739cdebf45d3fa7b41e9fa74f3e1052a6d04c9e9e68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21461ee9ec6dd9e878d4d739cdebf45d3fa7b41e9fa74f3e1052a6d04c9e9e68", kill_on_drop: false }`
[INFO] [stdout] 21461ee9ec6dd9e878d4d739cdebf45d3fa7b41e9fa74f3e1052a6d04c9e9e68