[INFO] cloning repository https://github.com/cstorey/gll-experiments [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cstorey/gll-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fgll-experiments", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fgll-experiments'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 31e529f404d371a044cef55fdd449c6989a52c18 [INFO] testing cstorey/gll-experiments against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fgll-experiments" "/workspace/builds/worker-78/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cstorey/gll-experiments on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-78/source/Cargo.toml [INFO] crate git repo https://github.com/cstorey/gll-experiments already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7754ce595300dd8591f0f5d2ef9ebe69d9129236ec6f0e7bede573cc0b6d7b4f [INFO] running `Command { std: "docker" "start" "-a" "7754ce595300dd8591f0f5d2ef9ebe69d9129236ec6f0e7bede573cc0b6d7b4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7754ce595300dd8591f0f5d2ef9ebe69d9129236ec6f0e7bede573cc0b6d7b4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7754ce595300dd8591f0f5d2ef9ebe69d9129236ec6f0e7bede573cc0b6d7b4f", kill_on_drop: false }` [INFO] [stdout] 7754ce595300dd8591f0f5d2ef9ebe69d9129236ec6f0e7bede573cc0b6d7b4f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 21e4fc49959079eae265d80d2e43eb984a836ca069d8999695a9ccb71d3554a4 [INFO] running `Command { std: "docker" "start" "-a" "21e4fc49959079eae265d80d2e43eb984a836ca069d8999695a9ccb71d3554a4", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling gll-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:102:17 [INFO] [stdout] | [INFO] [stdout] 102 | let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new); [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: type alias is never used: `Stack` [INFO] [stdout] --> src/main.rs:42:1 [INFO] [stdout] | [INFO] [stdout] 42 | type Stack = VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.12s [INFO] running `Command { std: "docker" "inspect" "21e4fc49959079eae265d80d2e43eb984a836ca069d8999695a9ccb71d3554a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21e4fc49959079eae265d80d2e43eb984a836ca069d8999695a9ccb71d3554a4", kill_on_drop: false }` [INFO] [stdout] 21e4fc49959079eae265d80d2e43eb984a836ca069d8999695a9ccb71d3554a4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9ba4e527776802be3df6ced671d2af4cf91ac56dfe9e72b7e4630458b26ff87 [INFO] running `Command { std: "docker" "start" "-a" "c9ba4e527776802be3df6ced671d2af4cf91ac56dfe9e72b7e4630458b26ff87", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling gll-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:102:17 [INFO] [stdout] | [INFO] [stdout] 102 | let mut fromv = self.gss.entry(v).or_insert_with(BTreeSet::new); [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: type alias is never used: `Stack` [INFO] [stdout] --> src/main.rs:42:1 [INFO] [stdout] | [INFO] [stdout] 42 | type Stack = VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.27s [INFO] running `Command { std: "docker" "inspect" "c9ba4e527776802be3df6ced671d2af4cf91ac56dfe9e72b7e4630458b26ff87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9ba4e527776802be3df6ced671d2af4cf91ac56dfe9e72b7e4630458b26ff87", kill_on_drop: false }` [INFO] [stdout] c9ba4e527776802be3df6ced671d2af4cf91ac56dfe9e72b7e4630458b26ff87 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 29147a5b5001a90d4361763470f86bbb15ec450aed4fa3e5306fa49d078b2fe5 [INFO] running `Command { std: "docker" "start" "-a" "29147a5b5001a90d4361763470f86bbb15ec450aed4fa3e5306fa49d078b2fe5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `gll-examples` (bin "gll-examples" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.40s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/gll_examples-36a3bb00cd819d09) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test recognises_b ... ok [INFO] [stdout] test recognises_empty_string ... ok [INFO] [stdout] test rejects_z ... ok [INFO] [stdout] test recognises_aad ... ok [INFO] [stdout] test rejects_aadz ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "29147a5b5001a90d4361763470f86bbb15ec450aed4fa3e5306fa49d078b2fe5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29147a5b5001a90d4361763470f86bbb15ec450aed4fa3e5306fa49d078b2fe5", kill_on_drop: false }` [INFO] [stdout] 29147a5b5001a90d4361763470f86bbb15ec450aed4fa3e5306fa49d078b2fe5