[INFO] cloning repository https://github.com/minghu6/alg-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/minghu6/alg-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminghu6%2Falg-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminghu6%2Falg-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eac3c774da7d0ce4a42a69eeb1a7fa3899b0aa75
[INFO] checking minghu6/alg-parser against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminghu6%2Falg-parser" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/minghu6/alg-parser
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/minghu6/alg-parser
[INFO] tweaked toml for git repo https://github.com/minghu6/alg-parser written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/minghu6/alg-parser on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/minghu6/alg-parser 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "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 unstringify v0.1.4
[INFO] [stderr]   Downloaded cute v0.3.0
[INFO] [stderr]   Downloaded m6-key-set v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9eb605716c9b466b98e4981676bf9adab50105956cc0bbbb3af1907723214e46
[INFO] running `Command { std: "docker" "start" "-a" "9eb605716c9b466b98e4981676bf9adab50105956cc0bbbb3af1907723214e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eb605716c9b466b98e4981676bf9adab50105956cc0bbbb3af1907723214e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb605716c9b466b98e4981676bf9adab50105956cc0bbbb3af1907723214e46", kill_on_drop: false }`
[INFO] [stdout] 9eb605716c9b466b98e4981676bf9adab50105956cc0bbbb3af1907723214e46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4400847b019d6234b84d3317e7ae054f55895951d6d5a8709085361e9e8907
[INFO] running `Command { std: "docker" "start" "-a" "5f4400847b019d6234b84d3317e7ae054f55895951d6d5a8709085361e9e8907", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling unstringify v0.1.4
[INFO] [stderr]     Checking cute v0.3.0
[INFO] [stderr]     Checking m6-key-set v0.2.1
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking proc-macros v0.1.0 (/opt/rustwide/workdir/proc_macros)
[INFO] [stderr]    Compiling concat-idents v1.1.5
[INFO] [stderr]     Checking alg-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::*`
[INFO] [stdout]    --> src/utils.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |     use crate::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::simple_regex`
[INFO] [stdout]     --> src/regex.rs:1064:13
[INFO] [stdout]      |
[INFO] [stdout] 1064 |         use crate::simple_regex;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "5f4400847b019d6234b84d3317e7ae054f55895951d6d5a8709085361e9e8907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4400847b019d6234b84d3317e7ae054f55895951d6d5a8709085361e9e8907", kill_on_drop: false }`
[INFO] [stdout] 5f4400847b019d6234b84d3317e7ae054f55895951d6d5a8709085361e9e8907