[INFO] cloning repository https://github.com/clubby789/regex-jit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clubby789/regex-jit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclubby789%2Fregex-jit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclubby789%2Fregex-jit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c57b5174d6b51e2701b42f2ffff76e4233acec8
[INFO] checking clubby789/regex-jit against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclubby789%2Fregex-jit" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/clubby789/regex-jit
[INFO] finished tweaking git repo https://github.com/clubby789/regex-jit
[INFO] tweaked toml for git repo https://github.com/clubby789/regex-jit written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/clubby789/regex-jit on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/clubby789/regex-jit 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking clubby789/regex-jit against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclubby789%2Fregex-jit" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/clubby789/regex-jit
[INFO] finished tweaking git repo https://github.com/clubby789/regex-jit
[INFO] tweaked toml for git repo https://github.com/clubby789/regex-jit written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/clubby789/regex-jit on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/clubby789/regex-jit 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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 iced-x86 v1.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7eb530f3ac3d420db8651757b898866093e5271ca91c7586b8631fba62a5bb33
[INFO] running `Command { std: "docker" "start" "-a" "7eb530f3ac3d420db8651757b898866093e5271ca91c7586b8631fba62a5bb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eb530f3ac3d420db8651757b898866093e5271ca91c7586b8631fba62a5bb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb530f3ac3d420db8651757b898866093e5271ca91c7586b8631fba62a5bb33", kill_on_drop: false }`
[INFO] [stdout] 7eb530f3ac3d420db8651757b898866093e5271ca91c7586b8631fba62a5bb33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f5db50dfd606ddf62b2ca4ad39837fe30a7a48dbcf7d98dff850ddbc8f08e3
[INFO] running `Command { std: "docker" "start" "-a" "93f5db50dfd606ddf62b2ca4ad39837fe30a7a48dbcf7d98dff850ddbc8f08e3", kill_on_drop: false }`
[INFO] [stderr]     Checking iced-x86 v1.21.0
[INFO] [stderr]     Checking regex-jit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Optional(Box<RegexNode>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RegexNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     Optional(Box<RegexNode>),
[INFO] [stdout] 20 +     Optional(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Optional(Box<RegexNode>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RegexNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     Optional(Box<RegexNode>),
[INFO] [stdout] 20 +     Optional(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "93f5db50dfd606ddf62b2ca4ad39837fe30a7a48dbcf7d98dff850ddbc8f08e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f5db50dfd606ddf62b2ca4ad39837fe30a7a48dbcf7d98dff850ddbc8f08e3", kill_on_drop: false }`
[INFO] [stdout] 93f5db50dfd606ddf62b2ca4ad39837fe30a7a48dbcf7d98dff850ddbc8f08e3