[INFO] cloning repository https://github.com/Snektron/mamba [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Snektron/mamba" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnektron%2Fmamba", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnektron%2Fmamba'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8e16034b3ed9bcf9a5a92b15d9ce65d3bcf8360e [INFO] testing Snektron/mamba against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnektron%2Fmamba" "/workspace/builds/worker-105/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Snektron/mamba on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Snektron/mamba [INFO] finished tweaking git repo https://github.com/Snektron/mamba [INFO] tweaked toml for git repo https://github.com/Snektron/mamba written to /workspace/builds/worker-105/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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 string_cache v0.7.5 [INFO] [stderr] Downloaded clap v2.34.0 [INFO] [stderr] Downloaded docopt v1.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 43b7f040a2195c6e74143e8d07ff886738e71845495e37114489aa1c13c5e5a7 [INFO] running `Command { std: "docker" "start" "-a" "43b7f040a2195c6e74143e8d07ff886738e71845495e37114489aa1c13c5e5a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "43b7f040a2195c6e74143e8d07ff886738e71845495e37114489aa1c13c5e5a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43b7f040a2195c6e74143e8d07ff886738e71845495e37114489aa1c13c5e5a7", kill_on_drop: false }` [INFO] [stdout] 43b7f040a2195c6e74143e8d07ff886738e71845495e37114489aa1c13c5e5a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bd515d3314212e91dbc8d1e23acad9c125cd7337dc7577e83d8584a7de2d562a [INFO] running `Command { std: "docker" "start" "-a" "bd515d3314212e91dbc8d1e23acad9c125cd7337dc7577e83d8584a7de2d562a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling lalrpop-util v0.16.3 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling generic-array v0.12.4 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [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 ascii-canvas v1.0.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.34.0 [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 docopt v1.1.1 [INFO] [stderr] Compiling lalrpop v0.16.3 [INFO] [stderr] Compiling mamba v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1861:5 [INFO] [stdout] | [INFO] [stdout] 1861 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1861 - (__0) [INFO] [stdout] 1861 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1934:5 [INFO] [stdout] | [INFO] [stdout] 1934 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1934 - (__0) [INFO] [stdout] 1934 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1947:5 [INFO] [stdout] | [INFO] [stdout] 1947 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1947 - (__0) [INFO] [stdout] 1947 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1995:5 [INFO] [stdout] | [INFO] [stdout] 1995 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1995 - (__0) [INFO] [stdout] 1995 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:2009:5 [INFO] [stdout] | [INFO] [stdout] 2009 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2009 - (__0) [INFO] [stdout] 2009 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:2216:5 [INFO] [stdout] | [INFO] [stdout] 2216 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2216 - (__0) [INFO] [stdout] 2216 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ast/construct.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | let mut t = check_arms(&from, arms, &states, &alphabet)?; [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: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 46s [INFO] running `Command { std: "docker" "inspect" "bd515d3314212e91dbc8d1e23acad9c125cd7337dc7577e83d8584a7de2d562a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd515d3314212e91dbc8d1e23acad9c125cd7337dc7577e83d8584a7de2d562a", kill_on_drop: false }` [INFO] [stdout] bd515d3314212e91dbc8d1e23acad9c125cd7337dc7577e83d8584a7de2d562a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c6a33ca8a7385733d82163bbaf55db5e4a00c5fc87298debf5f78d6723371e77 [INFO] running `Command { std: "docker" "start" "-a" "c6a33ca8a7385733d82163bbaf55db5e4a00c5fc87298debf5f78d6723371e77", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling mamba v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1861:5 [INFO] [stdout] | [INFO] [stdout] 1861 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1861 - (__0) [INFO] [stdout] 1861 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1934:5 [INFO] [stdout] | [INFO] [stdout] 1934 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1934 - (__0) [INFO] [stdout] 1934 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1947:5 [INFO] [stdout] | [INFO] [stdout] 1947 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1947 - (__0) [INFO] [stdout] 1947 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1995:5 [INFO] [stdout] | [INFO] [stdout] 1995 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1995 - (__0) [INFO] [stdout] 1995 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:2009:5 [INFO] [stdout] | [INFO] [stdout] 2009 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2009 - (__0) [INFO] [stdout] 2009 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:2216:5 [INFO] [stdout] | [INFO] [stdout] 2216 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2216 - (__0) [INFO] [stdout] 2216 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ast/construct.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | let mut t = check_arms(&from, arms, &states, &alphabet)?; [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: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.10s [INFO] running `Command { std: "docker" "inspect" "c6a33ca8a7385733d82163bbaf55db5e4a00c5fc87298debf5f78d6723371e77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6a33ca8a7385733d82163bbaf55db5e4a00c5fc87298debf5f78d6723371e77", kill_on_drop: false }` [INFO] [stdout] c6a33ca8a7385733d82163bbaf55db5e4a00c5fc87298debf5f78d6723371e77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 19157f2000e96f6f670d7292dc2b8b0c821280be3c65a23b000baf74d7e0cc72 [INFO] running `Command { std: "docker" "start" "-a" "19157f2000e96f6f670d7292dc2b8b0c821280be3c65a23b000baf74d7e0cc72", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1861:5 [INFO] [stderr] | [INFO] [stderr] 1861 | (__0) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1861 - (__0) [INFO] [stderr] 1861 + __0 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1934:5 [INFO] [stderr] | [INFO] [stderr] 1934 | (__0) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1934 - (__0) [INFO] [stderr] 1934 + __0 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1947:5 [INFO] [stderr] | [INFO] [stderr] 1947 | (__0) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1947 - (__0) [INFO] [stderr] 1947 + __0 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:1995:5 [INFO] [stderr] | [INFO] [stderr] 1995 | (__0) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1995 - (__0) [INFO] [stderr] 1995 + __0 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:2009:5 [INFO] [stderr] | [INFO] [stderr] 2009 | (__0) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 2009 - (__0) [INFO] [stderr] 2009 + __0 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> /opt/rustwide/target/debug/build/mamba-4343b951a51e0a7f/out/parser/grammar.rs:2216:5 [INFO] [stderr] | [INFO] [stderr] 2216 | (__0) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 2216 - (__0) [INFO] [stderr] 2216 + __0 [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/ast/construct.rs:188:13 [INFO] [stderr] | [INFO] [stderr] 188 | let mut t = check_arms(&from, arms, &states, &alphabet)?; [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: `mamba` (bin "mamba" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.96s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mamba-5ed1b3ca2944cf24) [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" "19157f2000e96f6f670d7292dc2b8b0c821280be3c65a23b000baf74d7e0cc72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19157f2000e96f6f670d7292dc2b8b0c821280be3c65a23b000baf74d7e0cc72", kill_on_drop: false }` [INFO] [stdout] 19157f2000e96f6f670d7292dc2b8b0c821280be3c65a23b000baf74d7e0cc72