[INFO] cloning repository https://github.com/stranavad/cssz_dominikovo_formatter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stranavad/cssz_dominikovo_formatter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstranavad%2Fcssz_dominikovo_formatter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstranavad%2Fcssz_dominikovo_formatter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d4a53dd28e802730094ba33631db7b8b52bc54ef [INFO] checking stranavad/cssz_dominikovo_formatter against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstranavad%2Fcssz_dominikovo_formatter" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/stranavad/cssz_dominikovo_formatter [INFO] finished tweaking git repo https://github.com/stranavad/cssz_dominikovo_formatter [INFO] tweaked toml for git repo https://github.com/stranavad/cssz_dominikovo_formatter written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/stranavad/cssz_dominikovo_formatter on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/stranavad/cssz_dominikovo_formatter 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a2b6f9b9891cd09506d510e8992a0ab40dc36ca706d5a66bb56589d71c10bef [INFO] running `Command { std: "docker" "start" "-a" "4a2b6f9b9891cd09506d510e8992a0ab40dc36ca706d5a66bb56589d71c10bef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a2b6f9b9891cd09506d510e8992a0ab40dc36ca706d5a66bb56589d71c10bef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a2b6f9b9891cd09506d510e8992a0ab40dc36ca706d5a66bb56589d71c10bef", kill_on_drop: false }` [INFO] [stdout] 4a2b6f9b9891cd09506d510e8992a0ab40dc36ca706d5a66bb56589d71c10bef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ac10e38b259f7548ece50e0f4da43ea0e285020640e96a5322962fb99f52c27 [INFO] running `Command { std: "docker" "start" "-a" "3ac10e38b259f7548ece50e0f4da43ea0e285020640e96a5322962fb99f52c27", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Compiling serde v1.0.193 [INFO] [stderr] Compiling serde_json v1.0.108 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Checking itertools v0.12.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Compiling serde_derive v1.0.193 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking language v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:184:37 [INFO] [stdout] | [INFO] [stdout] 184 | ... for i in 0..(delta + 1) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:189:37 [INFO] [stdout] | [INFO] [stdout] 189 | ... for i in 0..(index + 1) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:202:29 [INFO] [stdout] | [INFO] [stdout] 202 | for i in 0..(index + 1) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:324:14 [INFO] [stdout] | [INFO] [stdout] 324 | for (key, value) in sorted { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MutationMerge` is never constructed [INFO] [stdout] --> src/main.rs:280:8 [INFO] [stdout] | [INFO] [stdout] 280 | struct MutationMerge { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:165:32 [INFO] [stdout] | [INFO] [stdout] 165 | let json_key = path_keys.last().expect("").parse::().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `language` (bin "language" test) due to 1 previous error; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:184:37 [INFO] [stdout] | [INFO] [stdout] 184 | ... for i in 0..(delta + 1) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:189:37 [INFO] [stdout] | [INFO] [stdout] 189 | ... for i in 0..(index + 1) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:202:29 [INFO] [stdout] | [INFO] [stdout] 202 | for i in 0..(index + 1) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:324:14 [INFO] [stdout] | [INFO] [stdout] 324 | for (key, value) in sorted { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MutationMerge` is never constructed [INFO] [stdout] --> src/main.rs:280:8 [INFO] [stdout] | [INFO] [stdout] 280 | struct MutationMerge { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:165:32 [INFO] [stdout] | [INFO] [stdout] 165 | let json_key = path_keys.last().expect("").parse::().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `language` (bin "language") due to 1 previous error; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3ac10e38b259f7548ece50e0f4da43ea0e285020640e96a5322962fb99f52c27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ac10e38b259f7548ece50e0f4da43ea0e285020640e96a5322962fb99f52c27", kill_on_drop: false }` [INFO] [stdout] 3ac10e38b259f7548ece50e0f4da43ea0e285020640e96a5322962fb99f52c27