[INFO] cloning repository https://github.com/matszczygiel/casec [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matszczygiel/casec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatszczygiel%2Fcasec", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatszczygiel%2Fcasec'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d3665200daed8b138604a9bbae8582dd8ad82f9b [INFO] checking matszczygiel/casec 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%2Fmatszczygiel%2Fcasec" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/matszczygiel/casec [INFO] finished tweaking git repo https://github.com/matszczygiel/casec [INFO] tweaked toml for git repo https://github.com/matszczygiel/casec written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/matszczygiel/casec 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/matszczygiel/casec 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e5abb84ff79ea7e8df364c63733d75fe3917d061c0e55964c48b446762a1a3c8 [INFO] running `Command { std: "docker" "start" "-a" "e5abb84ff79ea7e8df364c63733d75fe3917d061c0e55964c48b446762a1a3c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5abb84ff79ea7e8df364c63733d75fe3917d061c0e55964c48b446762a1a3c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5abb84ff79ea7e8df364c63733d75fe3917d061c0e55964c48b446762a1a3c8", kill_on_drop: false }` [INFO] [stdout] e5abb84ff79ea7e8df364c63733d75fe3917d061c0e55964c48b446762a1a3c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3a343689e10b2ca5d5e18073a18553e548fd0cf34bdc4480e23329e44dc6d1c2 [INFO] running `Command { std: "docker" "start" "-a" "3a343689e10b2ca5d5e18073a18553e548fd0cf34bdc4480e23329e44dc6d1c2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking once_cell v1.7.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking casec v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Replacer` is never constructed [INFO] [stdout] --> src/converter.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 72 | struct Replacer { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `append_cammel` and `append_snake` are never used [INFO] [stdout] --> src/converter.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 76 | impl Replacer { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] 77 | fn append_cammel(&self, chars: Chars, dst: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | fn append_snake(&self, chars: Chars, dst: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | / /// The list of patterns to look for [INFO] [stdout] 35 | | #[structopt(long, short)] [INFO] [stdout] 36 | | patterns: Vec, [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 `casec` (bin "casec" test) due to 1 previous error; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: struct `Replacer` is never constructed [INFO] [stdout] --> src/converter.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 72 | struct Replacer { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `append_cammel` and `append_snake` are never used [INFO] [stdout] --> src/converter.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 76 | impl Replacer { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] 77 | fn append_cammel(&self, chars: Chars, dst: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | fn append_snake(&self, chars: Chars, dst: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | / /// The list of patterns to look for [INFO] [stdout] 35 | | #[structopt(long, short)] [INFO] [stdout] 36 | | patterns: Vec, [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 `casec` (bin "casec") due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3a343689e10b2ca5d5e18073a18553e548fd0cf34bdc4480e23329e44dc6d1c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a343689e10b2ca5d5e18073a18553e548fd0cf34bdc4480e23329e44dc6d1c2", kill_on_drop: false }` [INFO] [stdout] 3a343689e10b2ca5d5e18073a18553e548fd0cf34bdc4480e23329e44dc6d1c2