[INFO] cloning repository https://github.com/jtran/mini-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtran/mini-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtran%2Fmini-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtran%2Fmini-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9e5422a28c2f9a67f80c377d352fa19d244b28bc [INFO] testing jtran/mini-rust against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtran%2Fmini-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jtran/mini-rust on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jtran/mini-rust [INFO] finished tweaking git repo https://github.com/jtran/mini-rust [INFO] tweaked toml for git repo https://github.com/jtran/mini-rust written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jtran/mini-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 778aa8ff260699f19a90e9269b8d74b519adf351c9340c39e406d2ca378a9cd3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "778aa8ff260699f19a90e9269b8d74b519adf351c9340c39e406d2ca378a9cd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "778aa8ff260699f19a90e9269b8d74b519adf351c9340c39e406d2ca378a9cd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "778aa8ff260699f19a90e9269b8d74b519adf351c9340c39e406d2ca378a9cd3", kill_on_drop: false }` [INFO] [stdout] 778aa8ff260699f19a90e9269b8d74b519adf351c9340c39e406d2ca378a9cd3 [INFO] running `Command { std: "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" "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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9b662dd18f3cac72e0b43d5227db074ab1491ea857728a6d885840ed72f75844 [INFO] running `Command { std: "docker" "start" "-a" "9b662dd18f3cac72e0b43d5227db074ab1491ea857728a6d885840ed72f75844", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling serde v1.0.103 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling strsim v0.9.2 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling lalrpop-util v0.17.2 [INFO] [stderr] Compiling diff v0.1.11 [INFO] [stderr] Compiling argparse v0.2.2 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling ena v0.13.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling bit-set v0.5.1 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [INFO] [stderr] Compiling string_cache v0.7.5 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling serde_derive v1.0.103 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Compiling lalrpop v0.17.2 [INFO] [stderr] Compiling mini-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:3881:5 [INFO] [stdout] | [INFO] [stdout] 3881 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:3948:5 [INFO] [stdout] | [INFO] [stdout] 3948 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4342:5 [INFO] [stdout] | [INFO] [stdout] 4342 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4686:5 [INFO] [stdout] | [INFO] [stdout] 4686 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4744:5 [INFO] [stdout] | [INFO] [stdout] 4744 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 02s [INFO] running `Command { std: "docker" "inspect" "9b662dd18f3cac72e0b43d5227db074ab1491ea857728a6d885840ed72f75844", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b662dd18f3cac72e0b43d5227db074ab1491ea857728a6d885840ed72f75844", kill_on_drop: false }` [INFO] [stdout] 9b662dd18f3cac72e0b43d5227db074ab1491ea857728a6d885840ed72f75844 [INFO] running `Command { std: "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" "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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89d3eac21b068e325e9de129ae6fa5308d18d0415a54215721399e4906adc5df [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "89d3eac21b068e325e9de129ae6fa5308d18d0415a54215721399e4906adc5df", kill_on_drop: false }` [INFO] [stderr] Compiling mini-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:3881:5 [INFO] [stdout] | [INFO] [stdout] 3881 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:3948:5 [INFO] [stdout] | [INFO] [stdout] 3948 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4342:5 [INFO] [stdout] | [INFO] [stdout] 4342 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4686:5 [INFO] [stdout] | [INFO] [stdout] 4686 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4744:5 [INFO] [stdout] | [INFO] [stdout] 4744 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.55s [INFO] running `Command { std: "docker" "inspect" "89d3eac21b068e325e9de129ae6fa5308d18d0415a54215721399e4906adc5df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89d3eac21b068e325e9de129ae6fa5308d18d0415a54215721399e4906adc5df", kill_on_drop: false }` [INFO] [stdout] 89d3eac21b068e325e9de129ae6fa5308d18d0415a54215721399e4906adc5df [INFO] running `Command { std: "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" "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" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9b3ba901d0beff3c5fc86746e423ac58c7a71c2eae7be6944be46fbd41c7a4b9 [INFO] running `Command { std: "docker" "start" "-a" "9b3ba901d0beff3c5fc86746e423ac58c7a71c2eae7be6944be46fbd41c7a4b9", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:3881:5 [INFO] [stderr] | [INFO] [stderr] 3881 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:3948:5 [INFO] [stderr] | [INFO] [stderr] 3948 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4342:5 [INFO] [stderr] | [INFO] [stderr] 4342 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4686:5 [INFO] [stderr] | [INFO] [stderr] 4686 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mini-rust-34295030675bb0a3/out/rust_grammar.rs:4744:5 [INFO] [stderr] | [INFO] [stderr] 4744 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: `mini-rust` (bin "mini-rust" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mini_rust-4a70c6f0b994d2e4) [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test tests::test_borrow_check_write_to_mutable_borrowed ... ok [INFO] [stdout] test tests::test_type_check_dereference ... ok [INFO] [stdout] test tests::test_type_check_borrow ... ok [INFO] [stdout] test tests::test_borrow_check_write_to_mutable_borrowed_with_dynamic_source ... ok [INFO] [stdout] test tests::test_borrow_check_write_to_shared_borrowed ... ok [INFO] [stdout] test tests::test_parse ... ok [INFO] [stdout] test tests::test_borrow_check_read_borrowed ... ok [INFO] [stdout] test tests::test_type_check ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "9b3ba901d0beff3c5fc86746e423ac58c7a71c2eae7be6944be46fbd41c7a4b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b3ba901d0beff3c5fc86746e423ac58c7a71c2eae7be6944be46fbd41c7a4b9", kill_on_drop: false }` [INFO] [stdout] 9b3ba901d0beff3c5fc86746e423ac58c7a71c2eae7be6944be46fbd41c7a4b9