[INFO] cloning repository https://github.com/hemantkgupta/prog-rust-2nd-ws
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hemantkgupta/prog-rust-2nd-ws" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemantkgupta%2Fprog-rust-2nd-ws", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemantkgupta%2Fprog-rust-2nd-ws'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e7ada8d537a54938271437fab1cb3e3a24f58da
[INFO] building hemantkgupta/prog-rust-2nd-ws against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemantkgupta%2Fprog-rust-2nd-ws" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hemantkgupta/prog-rust-2nd-ws
[INFO] finished tweaking git repo https://github.com/hemantkgupta/prog-rust-2nd-ws
[INFO] tweaked toml for git repo https://github.com/hemantkgupta/prog-rust-2nd-ws written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hemantkgupta/prog-rust-2nd-ws on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hemantkgupta/prog-rust-2nd-ws 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Millimeters(u32);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Meters(u32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.06s
[INFO] running `Command { std: "docker" "inspect" "b5a17548e2d2654cafdd3ad9b0b90be8d5af8ed092c69f538c8624787e873b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a17548e2d2654cafdd3ad9b0b90be8d5af8ed092c69f538c8624787e873b8f", kill_on_drop: false }`
[INFO] [stdout] b5a17548e2d2654cafdd3ad9b0b90be8d5af8ed092c69f538c8624787e873b8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 721f8b70fb32f3f728e9e40d8a107c4edc67116a56edc5f81340fa8917221252
[INFO] running `Command { std: "docker" "start" "-a" "721f8b70fb32f3f728e9e40d8a107c4edc67116a56edc5f81340fa8917221252", kill_on_drop: false }`
[INFO] [stderr]    Compiling testing v0.1.0 (/opt/rustwide/workdir/testing)
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[INFO] [stderr]    Compiling ch17_strings v0.1.0 (/opt/rustwide/workdir/ch17_strings)
[INFO] [stderr]    Compiling ch04_ownership v0.1.0 (/opt/rustwide/workdir/ch04_ownership)
[INFO] [stderr]    Compiling ch21_macros v0.1.0 (/opt/rustwide/workdir/ch21_macros)
[INFO] [stderr]    Compiling ch05_references v0.1.0 (/opt/rustwide/workdir/ch05_references)
[INFO] [stderr]    Compiling ch08_crates_modules v0.1.0 (/opt/rustwide/workdir/ch08_crates_modules)
[INFO] [stderr]    Compiling ch07_errors v0.1.0 (/opt/rustwide/workdir/ch07_errors)
[INFO] [stderr]    Compiling ch02 v0.1.0 (/opt/rustwide/workdir/ch02)
[INFO] [stderr]    Compiling ch12_overloading v0.1.0 (/opt/rustwide/workdir/ch12_overloading)
[INFO] [stderr]    Compiling ch23_foreign_functions v0.1.0 (/opt/rustwide/workdir/ch23_foreign_functions)
[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Millimeters(u32);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]   --> ch12_overloading/src/arithmatic.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Meters(u32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.86s
[INFO] running `Command { std: "docker" "inspect" "721f8b70fb32f3f728e9e40d8a107c4edc67116a56edc5f81340fa8917221252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "721f8b70fb32f3f728e9e40d8a107c4edc67116a56edc5f81340fa8917221252", kill_on_drop: false }`
[INFO] [stdout] 721f8b70fb32f3f728e9e40d8a107c4edc67116a56edc5f81340fa8917221252