[INFO] cloning repository https://github.com/yamakenji/udemy-rust-lesson
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yamakenji/udemy-rust-lesson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji%2Fudemy-rust-lesson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji%2Fudemy-rust-lesson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec8d9f2e32ed95a0b812108a0912d196de6fd180
[INFO] testing yamakenji/udemy-rust-lesson against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamakenji%2Fudemy-rust-lesson" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yamakenji/udemy-rust-lesson on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yamakenji/udemy-rust-lesson
[INFO] finished tweaking git repo https://github.com/yamakenji/udemy-rust-lesson
[INFO] tweaked toml for git repo https://github.com/yamakenji/udemy-rust-lesson written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/yamakenji/udemy-rust-lesson already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 727dafd8a7bf3a59818412aef9fbbb37821b6e7c1b93438c627156a576c42270
[INFO] running `Command { std: "docker" "start" "-a" "727dafd8a7bf3a59818412aef9fbbb37821b6e7c1b93438c627156a576c42270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "727dafd8a7bf3a59818412aef9fbbb37821b6e7c1b93438c627156a576c42270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727dafd8a7bf3a59818412aef9fbbb37821b6e7c1b93438c627156a576c42270", kill_on_drop: false }`
[INFO] [stdout] 727dafd8a7bf3a59818412aef9fbbb37821b6e7c1b93438c627156a576c42270
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1dbc3e24bce2815e549727d68e7fd4ce7f7796323a025b4592fe386d8e98a62
[INFO] running `Command { std: "docker" "start" "-a" "d1dbc3e24bce2815e549727d68e7fd4ce7f7796323a025b4592fe386d8e98a62", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling udemy-rust-lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `func_a`
[INFO] [stdout]  --> src/vars/sub_a.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn func_a() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `func_b`
[INFO] [stdout]  --> src/vars/sub_b.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn func_b() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "d1dbc3e24bce2815e549727d68e7fd4ce7f7796323a025b4592fe386d8e98a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1dbc3e24bce2815e549727d68e7fd4ce7f7796323a025b4592fe386d8e98a62", kill_on_drop: false }`
[INFO] [stdout] d1dbc3e24bce2815e549727d68e7fd4ce7f7796323a025b4592fe386d8e98a62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d07b3f6a2f1f0a57b51af8d4892c074be7ac1d71d8260ee107e07eb97e59b7
[INFO] running `Command { std: "docker" "start" "-a" "75d07b3f6a2f1f0a57b51af8d4892c074be7ac1d71d8260ee107e07eb97e59b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling udemy-rust-lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `func_a`
[INFO] [stdout]  --> src/vars/sub_a.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn func_a() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `func_b`
[INFO] [stdout]  --> src/vars/sub_b.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn func_b() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/udemy_rust_lesson-77828b1e34a67645)
[INFO] running `Command { std: "docker" "inspect" "75d07b3f6a2f1f0a57b51af8d4892c074be7ac1d71d8260ee107e07eb97e59b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d07b3f6a2f1f0a57b51af8d4892c074be7ac1d71d8260ee107e07eb97e59b7", kill_on_drop: false }`
[INFO] [stdout] 75d07b3f6a2f1f0a57b51af8d4892c074be7ac1d71d8260ee107e07eb97e59b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a32cfab0052bcb4c9cd454e644db9506c4f46d79bc172674f40142d1ad99c3d
[INFO] running `Command { std: "docker" "start" "-a" "6a32cfab0052bcb4c9cd454e644db9506c4f46d79bc172674f40142d1ad99c3d", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `func_a`
[INFO] [stderr]  --> src/vars/sub_a.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn func_a() {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `func_b`
[INFO] [stderr]  --> src/vars/sub_b.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn func_b() {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `udemy-rust-lesson` (bin "udemy-rust-lesson" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/udemy_rust_lesson-77828b1e34a67645)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a32cfab0052bcb4c9cd454e644db9506c4f46d79bc172674f40142d1ad99c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a32cfab0052bcb4c9cd454e644db9506c4f46d79bc172674f40142d1ad99c3d", kill_on_drop: false }`
[INFO] [stdout] 6a32cfab0052bcb4c9cd454e644db9506c4f46d79bc172674f40142d1ad99c3d