[INFO] fetching crate cloc 0.6.2...
[INFO] checking cloc-0.6.2 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate cloc 0.6.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cloc 0.6.2 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc1/source/Cargo.toml
[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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] [stderr]   Downloaded structopt-derive v0.4.11
[INFO] [stderr]   Downloaded syn v1.0.42
[INFO] [stderr]   Downloaded structopt v0.3.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c7c657f5ac855492bd091483cd89513346caa98bf38050e87b0bc525cf4d434
[INFO] running `Command { std: "docker" "start" "-a" "4c7c657f5ac855492bd091483cd89513346caa98bf38050e87b0bc525cf4d434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c7c657f5ac855492bd091483cd89513346caa98bf38050e87b0bc525cf4d434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7c657f5ac855492bd091483cd89513346caa98bf38050e87b0bc525cf4d434", kill_on_drop: false }`
[INFO] [stdout] 4c7c657f5ac855492bd091483cd89513346caa98bf38050e87b0bc525cf4d434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51b65bfa433b090f8c939f79a2d74dcc74d5ce294d16f322d8c99814c59ec440
[INFO] running `Command { std: "docker" "start" "-a" "51b65bfa433b090f8c939f79a2d74dcc74d5ce294d16f322d8c99814c59ec440", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "51b65bfa433b090f8c939f79a2d74dcc74d5ce294d16f322d8c99814c59ec440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b65bfa433b090f8c939f79a2d74dcc74d5ce294d16f322d8c99814c59ec440", kill_on_drop: false }`
[INFO] [stdout] 51b65bfa433b090f8c939f79a2d74dcc74d5ce294d16f322d8c99814c59ec440
