[INFO] cloning repository https://github.com/simpukr/rust-brainfuck [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simpukr/rust-brainfuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpukr%2Frust-brainfuck", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpukr%2Frust-brainfuck'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a13060e7525f1d6b1fd599fa7be8d64c5779429e [INFO] checking simpukr/rust-brainfuck against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpukr%2Frust-brainfuck" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/simpukr/rust-brainfuck [INFO] finished tweaking git repo https://github.com/simpukr/rust-brainfuck [INFO] tweaked toml for git repo https://github.com/simpukr/rust-brainfuck written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/simpukr/rust-brainfuck on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/simpukr/rust-brainfuck already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b0ba8714c6b1bb9488078cd871f621494c336f265be4cbd912a0d1bc7c4a78a6 [INFO] running `Command { std: "docker" "start" "-a" "b0ba8714c6b1bb9488078cd871f621494c336f265be4cbd912a0d1bc7c4a78a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b0ba8714c6b1bb9488078cd871f621494c336f265be4cbd912a0d1bc7c4a78a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0ba8714c6b1bb9488078cd871f621494c336f265be4cbd912a0d1bc7c4a78a6", kill_on_drop: false }` [INFO] [stdout] b0ba8714c6b1bb9488078cd871f621494c336f265be4cbd912a0d1bc7c4a78a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2f3050fcb63c0d31edc0c78b5ed082abf2acec25f42f8267e0a552f67ccdb5fd [INFO] running `Command { std: "docker" "start" "-a" "2f3050fcb63c0d31edc0c78b5ed082abf2acec25f42f8267e0a552f67ccdb5fd", kill_on_drop: false }` [INFO] [stderr] Checking rust-brainfuck v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/memory.rs:39:24 [INFO] [stdout] | [INFO] [stdout] 39 | Some(b) => (return *b), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 39 - Some(b) => (return *b), [INFO] [stdout] 39 + Some(b) => return *b, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/memory.rs:40:21 [INFO] [stdout] | [INFO] [stdout] 40 | None => (0), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 40 - None => (0), [INFO] [stdout] 40 + None => 0, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/memory.rs:50:24 [INFO] [stdout] | [INFO] [stdout] 50 | Some(b) => (*b = data), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 50 - Some(b) => (*b = data), [INFO] [stdout] 50 + Some(b) => *b = data, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/memory.rs:39:24 [INFO] [stdout] | [INFO] [stdout] 39 | Some(b) => (return *b), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 39 - Some(b) => (return *b), [INFO] [stdout] 39 + Some(b) => return *b, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/memory.rs:40:21 [INFO] [stdout] | [INFO] [stdout] 40 | None => (0), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 40 - None => (0), [INFO] [stdout] 40 + None => 0, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/memory.rs:50:24 [INFO] [stdout] | [INFO] [stdout] 50 | Some(b) => (*b = data), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 50 - Some(b) => (*b = data), [INFO] [stdout] 50 + Some(b) => *b = data, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/files.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct File { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 4 | pub name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/files.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct File { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 4 | pub name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "2f3050fcb63c0d31edc0c78b5ed082abf2acec25f42f8267e0a552f67ccdb5fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f3050fcb63c0d31edc0c78b5ed082abf2acec25f42f8267e0a552f67ccdb5fd", kill_on_drop: false }` [INFO] [stdout] 2f3050fcb63c0d31edc0c78b5ed082abf2acec25f42f8267e0a552f67ccdb5fd