[INFO] cloning repository https://github.com/mshassium/happy_birthday
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mshassium/happy_birthday" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmshassium%2Fhappy_birthday", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmshassium%2Fhappy_birthday'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6ddb6df528308257725313544e6f3c2af077743
[INFO] testing mshassium/happy_birthday 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%2Fmshassium%2Fhappy_birthday" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mshassium/happy_birthday 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/mshassium/happy_birthday
[INFO] finished tweaking git repo https://github.com/mshassium/happy_birthday
[INFO] tweaked toml for git repo https://github.com/mshassium/happy_birthday written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/mshassium/happy_birthday 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-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 24d53a42cbed7af9932dafd3c10d54d868cf2964607af94aa72372e39bf707b1
[INFO] running `Command { std: "docker" "start" "-a" "24d53a42cbed7af9932dafd3c10d54d868cf2964607af94aa72372e39bf707b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24d53a42cbed7af9932dafd3c10d54d868cf2964607af94aa72372e39bf707b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d53a42cbed7af9932dafd3c10d54d868cf2964607af94aa72372e39bf707b1", kill_on_drop: false }`
[INFO] [stdout] 24d53a42cbed7af9932dafd3c10d54d868cf2964607af94aa72372e39bf707b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 2c89b13372db5e4bfdfe8391c9ca5ab25210950f67e476cb6331228ee6b059ce
[INFO] running `Command { std: "docker" "start" "-a" "2c89b13372db5e4bfdfe8391c9ca5ab25210950f67e476cb6331228ee6b059ce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling happy_birthday v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `answer`
[INFO] [stdout]    --> src/main.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 367 |     let answer: String = read!();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.85s
[INFO] running `Command { std: "docker" "inspect" "2c89b13372db5e4bfdfe8391c9ca5ab25210950f67e476cb6331228ee6b059ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c89b13372db5e4bfdfe8391c9ca5ab25210950f67e476cb6331228ee6b059ce", kill_on_drop: false }`
[INFO] [stdout] 2c89b13372db5e4bfdfe8391c9ca5ab25210950f67e476cb6331228ee6b059ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 077eb97d331a1fed30a3f4dd16de26882af07c91cb15703a4cf8896a5e4f45bc
[INFO] running `Command { std: "docker" "start" "-a" "077eb97d331a1fed30a3f4dd16de26882af07c91cb15703a4cf8896a5e4f45bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling happy_birthday v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `answer`
[INFO] [stdout]    --> src/main.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 367 |     let answer: String = read!();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.19s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/happy_birthday-a40b367a85b54d88)
[INFO] running `Command { std: "docker" "inspect" "077eb97d331a1fed30a3f4dd16de26882af07c91cb15703a4cf8896a5e4f45bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "077eb97d331a1fed30a3f4dd16de26882af07c91cb15703a4cf8896a5e4f45bc", kill_on_drop: false }`
[INFO] [stdout] 077eb97d331a1fed30a3f4dd16de26882af07c91cb15703a4cf8896a5e4f45bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 4137a98c871d54c26ad27e37a8d5b7cb9815c329dd58488f59e3263e002fd87e
[INFO] running `Command { std: "docker" "start" "-a" "4137a98c871d54c26ad27e37a8d5b7cb9815c329dd58488f59e3263e002fd87e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `answer`
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:367:9
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 367 |     let answer: String = read!();
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `happy_birthday` (bin "happy_birthday" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.72s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/happy_birthday-a40b367a85b54d88)
[INFO] running `Command { std: "docker" "inspect" "4137a98c871d54c26ad27e37a8d5b7cb9815c329dd58488f59e3263e002fd87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4137a98c871d54c26ad27e37a8d5b7cb9815c329dd58488f59e3263e002fd87e", kill_on_drop: false }`
[INFO] [stdout] 4137a98c871d54c26ad27e37a8d5b7cb9815c329dd58488f59e3263e002fd87e