[INFO] cloning repository https://github.com/sbwtw/regex-gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sbwtw/regex-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbwtw%2Fregex-gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbwtw%2Fregex-gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a703acd1984705229cb1706a2ebcaaa37ed9bf1e
[INFO] testing sbwtw/regex-gen against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbwtw%2Fregex-gen" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sbwtw/regex-gen on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sbwtw/regex-gen
[INFO] finished tweaking git repo https://github.com/sbwtw/regex-gen
[INFO] tweaked toml for git repo https://github.com/sbwtw/regex-gen written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sbwtw/regex-gen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d144b7c39291a2329015b187c6df0c0fcdbc828156ceba707108e328c50869d7
[INFO] running `Command { std: "docker" "start" "-a" "d144b7c39291a2329015b187c6df0c0fcdbc828156ceba707108e328c50869d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d144b7c39291a2329015b187c6df0c0fcdbc828156ceba707108e328c50869d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d144b7c39291a2329015b187c6df0c0fcdbc828156ceba707108e328c50869d7", kill_on_drop: false }`
[INFO] [stdout] d144b7c39291a2329015b187c6df0c0fcdbc828156ceba707108e328c50869d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c0985899b759553a60a6620ba1162972e567bb9a975db5f961e98b8075585a5
[INFO] running `Command { std: "docker" "start" "-a" "7c0985899b759553a60a6620ba1162972e567bb9a975db5f961e98b8075585a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling regex-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/transtable.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |         for (_, mut edges) in self.trans.iter_mut() {
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "7c0985899b759553a60a6620ba1162972e567bb9a975db5f961e98b8075585a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0985899b759553a60a6620ba1162972e567bb9a975db5f961e98b8075585a5", kill_on_drop: false }`
[INFO] [stdout] 7c0985899b759553a60a6620ba1162972e567bb9a975db5f961e98b8075585a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fc182e5225c216d001e50f62bc61fb8b50f21421dd14dafd968fb6b752787d2
[INFO] running `Command { std: "docker" "start" "-a" "6fc182e5225c216d001e50f62bc61fb8b50f21421dd14dafd968fb6b752787d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/transtable.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |         for (_, mut edges) in self.trans.iter_mut() {
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/transtable.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 |         for (_, mut edges) in self.trans.iter_mut() {
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "6fc182e5225c216d001e50f62bc61fb8b50f21421dd14dafd968fb6b752787d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc182e5225c216d001e50f62bc61fb8b50f21421dd14dafd968fb6b752787d2", kill_on_drop: false }`
[INFO] [stdout] 6fc182e5225c216d001e50f62bc61fb8b50f21421dd14dafd968fb6b752787d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 038915b1e44752477109e5cb5c01d67289680123bd8f56be94b9b5c16acecc9f
[INFO] running `Command { std: "docker" "start" "-a" "038915b1e44752477109e5cb5c01d67289680123bd8f56be94b9b5c16acecc9f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 9 tests
[INFO] [stderr]    --> src/transtable.rs:122:17
[INFO] [stderr]     |
[INFO] [stderr] 122 |         for (_, mut edges) in self.trans.iter_mut() {
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/transtable.rs:122:17
[INFO] [stderr]     |
[INFO] [stderr] 122 |         for (_, mut edges) in self.trans.iter_mut() {
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/regex_gen-5c2f2fe8bb1085b9)
[INFO] [stdout] test regex_gen::test::test_print_graph ... ok
[INFO] [stdout] test dot_graph::test::test_dot_graph ... ok
[INFO] [stdout] test node::test::test_edge_match_character ... ok
[INFO] [stdout] test node::test::test_edge_intersect ... ok
[INFO] [stdout] test transtable::test::test_epsilon_move ... ok
[INFO] [stdout] test regex_gen::test::test_parse ... ok
[INFO] [stderr]    Doc-tests regex_gen
[INFO] [stdout] test execute_engine::test::test_execute_engine ... ok
[INFO] [stdout] test execute_engine::test::test_execute_not ... ok
[INFO] [stdout] test transtable::test::test_cut_epsilon ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "038915b1e44752477109e5cb5c01d67289680123bd8f56be94b9b5c16acecc9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038915b1e44752477109e5cb5c01d67289680123bd8f56be94b9b5c16acecc9f", kill_on_drop: false }`
[INFO] [stdout] 038915b1e44752477109e5cb5c01d67289680123bd8f56be94b9b5c16acecc9f