[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] checking jtran/mini-rust against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtran%2Fmini-rust" "/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/jtran/mini-rust on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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-3/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", 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] 688da0c5d4780d3991323a63a6bde8f9d4b68cf9930bf6b93d718eb7eaf4aea0 [INFO] running `Command { std: "docker" "start" "-a" "688da0c5d4780d3991323a63a6bde8f9d4b68cf9930bf6b93d718eb7eaf4aea0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "688da0c5d4780d3991323a63a6bde8f9d4b68cf9930bf6b93d718eb7eaf4aea0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "688da0c5d4780d3991323a63a6bde8f9d4b68cf9930bf6b93d718eb7eaf4aea0", kill_on_drop: false }` [INFO] [stdout] 688da0c5d4780d3991323a63a6bde8f9d4b68cf9930bf6b93d718eb7eaf4aea0 [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] acea21bc2c71ab0b766c63881d7234036af50aa2354706375501ca481eb374de [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" "acea21bc2c71ab0b766c63881d7234036af50aa2354706375501ca481eb374de", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling serde v1.0.103 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling strsim v0.9.2 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling diff v0.1.11 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking argparse v0.2.2 [INFO] [stderr] Checking lalrpop-util v0.17.2 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling bit-set v0.5.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling ena v0.13.1 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Compiling regex v1.3.1 [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 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-32cf5028392bee54/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-32cf5028392bee54/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-32cf5028392bee54/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-32cf5028392bee54/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-32cf5028392bee54/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: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mini-rust-32cf5028392bee54/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-32cf5028392bee54/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-32cf5028392bee54/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-32cf5028392bee54/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-32cf5028392bee54/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] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 00s [INFO] running `Command { std: "docker" "inspect" "acea21bc2c71ab0b766c63881d7234036af50aa2354706375501ca481eb374de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acea21bc2c71ab0b766c63881d7234036af50aa2354706375501ca481eb374de", kill_on_drop: false }` [INFO] [stdout] acea21bc2c71ab0b766c63881d7234036af50aa2354706375501ca481eb374de