[INFO] fetching crate cloc 0.6.2...
[INFO] checking cloc-0.6.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cloc 0.6.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cloc 0.6.2
[INFO] finished tweaking crates.io crate cloc 0.6.2
[INFO] tweaked toml for crates.io crate cloc 0.6.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cloc 0.6.2 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 crates.io crate cloc 0.6.2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2a96744dedfb652a42fe1c08fc757f5e4456d18a74eeb8e18d3671a955997497
[INFO] running `Command { std: "docker" "start" "-a" "2a96744dedfb652a42fe1c08fc757f5e4456d18a74eeb8e18d3671a955997497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a96744dedfb652a42fe1c08fc757f5e4456d18a74eeb8e18d3671a955997497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a96744dedfb652a42fe1c08fc757f5e4456d18a74eeb8e18d3671a955997497", kill_on_drop: false }`
[INFO] [stdout] 2a96744dedfb652a42fe1c08fc757f5e4456d18a74eeb8e18d3671a955997497
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3096b031a962c4c486c1f3deadb99e10a99aa854a587450bd66481e2ef98277c
[INFO] running `Command { std: "docker" "start" "-a" "3096b031a962c4c486c1f3deadb99e10a99aa854a587450bd66481e2ef98277c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]     Checking structopt v0.3.18
[INFO] [stderr]     Checking cloc v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `file_ext` is never read
[INFO] [stdout]    --> src/calculator.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct Info {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] 134 |     language: &'static str,
[INFO] [stdout] 135 |     file_ext: Vec<&'static str>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Info` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]   --> src/options.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct Options {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub output: Output,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Options` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/options.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | /     #[structopt(long = "ignore-file")]
[INFO] [stdout] 106 | |     pub ignore_file: Option<PathBuf>,
[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 `cloc` (bin "cloc" test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `file_ext` is never read
[INFO] [stdout]    --> src/calculator.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct Info {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] 134 |     language: &'static str,
[INFO] [stdout] 135 |     file_ext: Vec<&'static str>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Info` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]   --> src/options.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct Options {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub output: Output,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Options` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/options.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | /     #[structopt(long = "ignore-file")]
[INFO] [stdout] 106 | |     pub ignore_file: Option<PathBuf>,
[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 `cloc` (bin "cloc") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3096b031a962c4c486c1f3deadb99e10a99aa854a587450bd66481e2ef98277c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3096b031a962c4c486c1f3deadb99e10a99aa854a587450bd66481e2ef98277c", kill_on_drop: false }`
[INFO] [stdout] 3096b031a962c4c486c1f3deadb99e10a99aa854a587450bd66481e2ef98277c
