[INFO] cloning repository https://github.com/ryuji-ito-0222/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/ryuji-ito-0222/rust-lesson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryuji-ito-0222%2Frust-lesson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryuji-ito-0222%2Frust-lesson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea40199bf17d070036d67f07eed2effe546b5f55
[INFO] testing ryuji-ito-0222/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%2Fryuji-ito-0222%2Frust-lesson" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryuji-ito-0222/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/ryuji-ito-0222/rust-lesson
[INFO] finished tweaking git repo https://github.com/ryuji-ito-0222/rust-lesson
[INFO] tweaked toml for git repo https://github.com/ryuji-ito-0222/rust-lesson written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/ryuji-ito-0222/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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 267b4594b9621eefe85da9a62edaa56ade7f5d75d19608bce44a688bf2ae6b32
[INFO] running `Command { std: "docker" "start" "-a" "267b4594b9621eefe85da9a62edaa56ade7f5d75d19608bce44a688bf2ae6b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "267b4594b9621eefe85da9a62edaa56ade7f5d75d19608bce44a688bf2ae6b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "267b4594b9621eefe85da9a62edaa56ade7f5d75d19608bce44a688bf2ae6b32", kill_on_drop: false }`
[INFO] [stdout] 267b4594b9621eefe85da9a62edaa56ade7f5d75d19608bce44a688bf2ae6b32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 582c150cc9ff137cb9fdd5b749d64e7655fa99d55ba351eefbd9c367e5bcb8f5
[INFO] running `Command { std: "docker" "start" "-a" "582c150cc9ff137cb9fdd5b749d64e7655fa99d55ba351eefbd9c367e5bcb8f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 0.91s
[INFO] running `Command { std: "docker" "inspect" "582c150cc9ff137cb9fdd5b749d64e7655fa99d55ba351eefbd9c367e5bcb8f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "582c150cc9ff137cb9fdd5b749d64e7655fa99d55ba351eefbd9c367e5bcb8f5", kill_on_drop: false }`
[INFO] [stdout] 582c150cc9ff137cb9fdd5b749d64e7655fa99d55ba351eefbd9c367e5bcb8f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 5b108004f846893afb90c39758dff1c4611bc434a9f63c3218aa0b5b50ce8916
[INFO] running `Command { std: "docker" "start" "-a" "5b108004f846893afb90c39758dff1c4611bc434a9f63c3218aa0b5b50ce8916", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 0.24s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_lesson-55e828c148ce5787)
[INFO] running `Command { std: "docker" "inspect" "5b108004f846893afb90c39758dff1c4611bc434a9f63c3218aa0b5b50ce8916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b108004f846893afb90c39758dff1c4611bc434a9f63c3218aa0b5b50ce8916", kill_on_drop: false }`
[INFO] [stdout] 5b108004f846893afb90c39758dff1c4611bc434a9f63c3218aa0b5b50ce8916
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 735bcea87eb36dab2088fc29013fc1c67e4dfe948013f2e1f40b3ad2e2071e07
[INFO] running `Command { std: "docker" "start" "-a" "735bcea87eb36dab2088fc29013fc1c67e4dfe948013f2e1f40b3ad2e2071e07", 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: `rust-lesson` (bin "rust-lesson" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_lesson-55e828c148ce5787)
[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" "735bcea87eb36dab2088fc29013fc1c67e4dfe948013f2e1f40b3ad2e2071e07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735bcea87eb36dab2088fc29013fc1c67e4dfe948013f2e1f40b3ad2e2071e07", kill_on_drop: false }`
[INFO] [stdout] 735bcea87eb36dab2088fc29013fc1c67e4dfe948013f2e1f40b3ad2e2071e07