[INFO] cloning repository https://github.com/iammadab/bit-manipulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iammadab/bit-manipulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiammadab%2Fbit-manipulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiammadab%2Fbit-manipulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bbe17cb1929ecbd9e535c816635bbd6ab95377f
[INFO] building iammadab/bit-manipulation against master#ce36a966c79e109dabeef7a47fe68e5294c6d71e for pr-137044-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiammadab%2Fbit-manipulation" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iammadab/bit-manipulation on toolchain ce36a966c79e109dabeef7a47fe68e5294c6d71e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iammadab/bit-manipulation
[INFO] finished tweaking git repo https://github.com/iammadab/bit-manipulation
[INFO] tweaked toml for git repo https://github.com/iammadab/bit-manipulation written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iammadab/bit-manipulation 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" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b16f931be2613a5759a5de2be323c687547481325a5f272d755f43e26911ecad
[INFO] running `Command { std: "docker" "start" "-a" "b16f931be2613a5759a5de2be323c687547481325a5f272d755f43e26911ecad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b16f931be2613a5759a5de2be323c687547481325a5f272d755f43e26911ecad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16f931be2613a5759a5de2be323c687547481325a5f272d755f43e26911ecad", kill_on_drop: false }`
[INFO] [stdout] b16f931be2613a5759a5de2be323c687547481325a5f272d755f43e26911ecad
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d19e32891e6707541f7bec1545b08eb09b27d23462d493ab785d936072fc270b
[INFO] running `Command { std: "docker" "start" "-a" "d19e32891e6707541f7bec1545b08eb09b27d23462d493ab785d936072fc270b", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-manipulation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `bit_rep` is never used
[INFO] [stdout]   --> src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn bit_rep(value: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u32_bit` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn u32_bit(bit_string: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "d19e32891e6707541f7bec1545b08eb09b27d23462d493ab785d936072fc270b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19e32891e6707541f7bec1545b08eb09b27d23462d493ab785d936072fc270b", kill_on_drop: false }`
[INFO] [stdout] d19e32891e6707541f7bec1545b08eb09b27d23462d493ab785d936072fc270b
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86ae4677b801174d25e0f249f11c5f30174d7a7a34bae456a725c3bd0d4a576c
[INFO] running `Command { std: "docker" "start" "-a" "86ae4677b801174d25e0f249f11c5f30174d7a7a34bae456a725c3bd0d4a576c", kill_on_drop: false }`
[INFO] [stdout] warning: function `bit_rep` is never used
[INFO] [stdout]   --> src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn bit_rep(value: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u32_bit` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn u32_bit(bit_string: &str) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bit-manipulation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `bit_rep` is never used
[INFO] [stdout]   --> src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn bit_rep(value: u32) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "86ae4677b801174d25e0f249f11c5f30174d7a7a34bae456a725c3bd0d4a576c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ae4677b801174d25e0f249f11c5f30174d7a7a34bae456a725c3bd0d4a576c", kill_on_drop: false }`
[INFO] [stdout] 86ae4677b801174d25e0f249f11c5f30174d7a7a34bae456a725c3bd0d4a576c