[INFO] fetching crate abackus 0.2.2...
[INFO] testing abackus-0.2.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate abackus 0.2.2 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate abackus 0.2.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abackus 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate abackus 0.2.2
[INFO] tweaked toml for crates.io crate abackus 0.2.2 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate crates.io crate abackus 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded earlgrey v0.3.0
[INFO] [stderr]   Downloaded lexers v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bca7c538e2e2b7a79484f18f8924dc339b83de727c07764ae63d125ddce2db27
[INFO] running `Command { std: "docker" "start" "-a" "bca7c538e2e2b7a79484f18f8924dc339b83de727c07764ae63d125ddce2db27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bca7c538e2e2b7a79484f18f8924dc339b83de727c07764ae63d125ddce2db27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca7c538e2e2b7a79484f18f8924dc339b83de727c07764ae63d125ddce2db27", kill_on_drop: false }`
[INFO] [stdout] bca7c538e2e2b7a79484f18f8924dc339b83de727c07764ae63d125ddce2db27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7a79ea7a02f4d1808eb576a559d39000826ffc6d75de63e55b8f7ba9e9d1217
[INFO] running `Command { std: "docker" "start" "-a" "f7a79ea7a02f4d1808eb576a559d39000826ffc6d75de63e55b8f7ba9e9d1217", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexers v0.1.2
[INFO] [stderr]    Compiling earlgrey v0.3.0
[INFO] [stderr]    Compiling abackus v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "f7a79ea7a02f4d1808eb576a559d39000826ffc6d75de63e55b8f7ba9e9d1217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a79ea7a02f4d1808eb576a559d39000826ffc6d75de63e55b8f7ba9e9d1217", kill_on_drop: false }`
[INFO] [stdout] f7a79ea7a02f4d1808eb576a559d39000826ffc6d75de63e55b8f7ba9e9d1217
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2da6ded198810f949778ddeb952ef959aa79249a71f26e85a751d48254a82412
[INFO] running `Command { std: "docker" "start" "-a" "2da6ded198810f949778ddeb952ef959aa79249a71f26e85a751d48254a82412", kill_on_drop: false }`
[INFO] [stderr]    Compiling abackus v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "2da6ded198810f949778ddeb952ef959aa79249a71f26e85a751d48254a82412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2da6ded198810f949778ddeb952ef959aa79249a71f26e85a751d48254a82412", kill_on_drop: false }`
[INFO] [stdout] 2da6ded198810f949778ddeb952ef959aa79249a71f26e85a751d48254a82412
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a106a5b31822607338477e4af673be07d52e4eca8787b59f8acda83be948ee63
[INFO] running `Command { std: "docker" "start" "-a" "a106a5b31822607338477e4af673be07d52e4eca8787b59f8acda83be948ee63", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/abackus-5f0d2aa9c891b9ce)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test ebnf_test::build_ebnf_grammar ... ok
[INFO] [stdout] test ebnf_test::minimal_parser ... ok
[INFO] [stdout] test ebnf_test::plug_terminal ... ok
[INFO] [stdout] test ebnf_test::grouping ... ok
[INFO] [stdout] test ebnf_test::arith_parser ... ok
[INFO] [stdout] test ebnf_test::grouping_tagged ... ok
[INFO] [stdout] test ebnf_test::repetition ... ok
[INFO] [stdout] test ebnf_test::option ... ok
[INFO] [stdout] test ebnf_test::option_tagged ... ok
[INFO] [stdout] test ebnf_test::mixed ... ok
[INFO] [stdout] test ebnf_test::mixed_tagged ... ok
[INFO] [stdout] test ebnf_test::repetition_tagged ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests abackus
[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" "a106a5b31822607338477e4af673be07d52e4eca8787b59f8acda83be948ee63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a106a5b31822607338477e4af673be07d52e4eca8787b59f8acda83be948ee63", kill_on_drop: false }`
[INFO] [stdout] a106a5b31822607338477e4af673be07d52e4eca8787b59f8acda83be948ee63