[INFO] updating cached repository https://github.com/cstorey/gll-experiments
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 31e529f404d371a044cef55fdd449c6989a52c18
[INFO] testing cstorey/gll-experiments against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fgll-experiments" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cstorey/gll-experiments on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cstorey/gll-experiments
[INFO] finished tweaking git repo https://github.com/cstorey/gll-experiments
[INFO] tweaked toml for git repo https://github.com/cstorey/gll-experiments written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cstorey/gll-experiments already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9527d959101beae041b9fbeb3cfcc77212884c573e42a4450b7c38067364b0a3
[INFO] running `"docker" "start" "-a" "9527d959101beae041b9fbeb3cfcc77212884c573e42a4450b7c38067364b0a3"`
[INFO] [stderr]    Compiling gll-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new);
[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: type alias is never used: `Stack`
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | type Stack = VecDeque<Extlbl>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `"docker" "inspect" "9527d959101beae041b9fbeb3cfcc77212884c573e42a4450b7c38067364b0a3"`
[INFO] running `"docker" "rm" "-f" "9527d959101beae041b9fbeb3cfcc77212884c573e42a4450b7c38067364b0a3"`
[INFO] [stdout] 9527d959101beae041b9fbeb3cfcc77212884c573e42a4450b7c38067364b0a3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8644a2b23d7b94cfba3fe1b076b80257a9736a8ed7f8a25fe5ca33c6d38e63fa
[INFO] running `"docker" "start" "-a" "8644a2b23d7b94cfba3fe1b076b80257a9736a8ed7f8a25fe5ca33c6d38e63fa"`
[INFO] [stderr]    Compiling gll-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new);
[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: type alias is never used: `Stack`
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | type Stack = VecDeque<Extlbl>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "8644a2b23d7b94cfba3fe1b076b80257a9736a8ed7f8a25fe5ca33c6d38e63fa"`
[INFO] running `"docker" "rm" "-f" "8644a2b23d7b94cfba3fe1b076b80257a9736a8ed7f8a25fe5ca33c6d38e63fa"`
[INFO] [stdout] 8644a2b23d7b94cfba3fe1b076b80257a9736a8ed7f8a25fe5ca33c6d38e63fa
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7bd43dbc9c72c049c149c5bf032499388fe879bceaade8ed1962482190d18d0a
[INFO] running `"docker" "start" "-a" "7bd43dbc9c72c049c149c5bf032499388fe879bceaade8ed1962482190d18d0a"`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new);
[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: type alias is never used: `Stack`
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | type Stack = VecDeque<Extlbl>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gll_examples-88232c807042c60f
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test recognises_empty_string ... ok
[INFO] [stdout] test rejects_z ... ok
[INFO] [stdout] test recognises_b ... ok
[INFO] [stdout] test rejects_aadz ... ok
[INFO] [stdout] test recognises_aad ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7bd43dbc9c72c049c149c5bf032499388fe879bceaade8ed1962482190d18d0a"`
[INFO] running `"docker" "rm" "-f" "7bd43dbc9c72c049c149c5bf032499388fe879bceaade8ed1962482190d18d0a"`
[INFO] [stdout] 7bd43dbc9c72c049c149c5bf032499388fe879bceaade8ed1962482190d18d0a