[INFO] cloning repository https://github.com/mobei12/rust_folder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mobei12/rust_folder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobei12%2Frust_folder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobei12%2Frust_folder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38fd1d82e44f2f65e3f6a8a45cd2aa5448b611f7
[INFO] building mobei12/rust_folder against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobei12%2Frust_folder" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mobei12/rust_folder
[INFO] finished tweaking git repo https://github.com/mobei12/rust_folder
[INFO] tweaked toml for git repo https://github.com/mobei12/rust_folder written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mobei12/rust_folder 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/mobei12/rust_folder 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 }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 }`
[INFO] [stdout] eebacd9b75b3f312fbd110a0b356831dc45347df6ffb7c96a0a0341887ec009c
[INFO] running `Command { std: "docker" "start" "-a" "eebacd9b75b3f312fbd110a0b356831dc45347df6ffb7c96a0a0341887ec009c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eebacd9b75b3f312fbd110a0b356831dc45347df6ffb7c96a0a0341887ec009c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eebacd9b75b3f312fbd110a0b356831dc45347df6ffb7c96a0a0341887ec009c", kill_on_drop: false }`
[INFO] [stdout] eebacd9b75b3f312fbd110a0b356831dc45347df6ffb7c96a0a0341887ec009c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 }`
[INFO] [stdout] ca68ca6958d555f3672a1dbe509663ca8a9bf7d9a4e696636a830385b4ac2bc1
[INFO] running `Command { std: "docker" "start" "-a" "ca68ca6958d555f3672a1dbe509663ca8a9bf7d9a4e696636a830385b4ac2bc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling rust_folder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `println_data` is never used
[INFO] [stdout]  --> src/function.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn println_data() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dead_end` is never used
[INFO] [stdout]   --> src/function.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn dead_end() -> ! {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `Command { std: "docker" "inspect" "ca68ca6958d555f3672a1dbe509663ca8a9bf7d9a4e696636a830385b4ac2bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca68ca6958d555f3672a1dbe509663ca8a9bf7d9a4e696636a830385b4ac2bc1", kill_on_drop: false }`
[INFO] [stdout] ca68ca6958d555f3672a1dbe509663ca8a9bf7d9a4e696636a830385b4ac2bc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8b3630efa936452725717732bffbb97a6392cbd9df85518eba493d7b54432798
[INFO] running `Command { std: "docker" "start" "-a" "8b3630efa936452725717732bffbb97a6392cbd9df85518eba493d7b54432798", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_folder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `println_data` is never used
[INFO] [stdout]  --> src/function.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn println_data() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dead_end` is never used
[INFO] [stdout]   --> src/function.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn dead_end() -> ! {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "8b3630efa936452725717732bffbb97a6392cbd9df85518eba493d7b54432798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b3630efa936452725717732bffbb97a6392cbd9df85518eba493d7b54432798", kill_on_drop: false }`
[INFO] [stdout] 8b3630efa936452725717732bffbb97a6392cbd9df85518eba493d7b54432798