[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 master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmshassium%2Fhappy_birthday" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mshassium/happy_birthday on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e43eded1fc569d636936dd11652e04db287d1036fa571a756a2b85b903148cfd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e43eded1fc569d636936dd11652e04db287d1036fa571a756a2b85b903148cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e43eded1fc569d636936dd11652e04db287d1036fa571a756a2b85b903148cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e43eded1fc569d636936dd11652e04db287d1036fa571a756a2b85b903148cfd", kill_on_drop: false }`
[INFO] [stdout] e43eded1fc569d636936dd11652e04db287d1036fa571a756a2b85b903148cfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5beeef402712d1da86c73250a70ebe45bad4f4ed885f321d6cd724be6d0aae3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f5beeef402712d1da86c73250a70ebe45bad4f4ed885f321d6cd724be6d0aae3", kill_on_drop: false }`
[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 2.56s
[INFO] running `Command { std: "docker" "inspect" "f5beeef402712d1da86c73250a70ebe45bad4f4ed885f321d6cd724be6d0aae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5beeef402712d1da86c73250a70ebe45bad4f4ed885f321d6cd724be6d0aae3", kill_on_drop: false }`
[INFO] [stdout] f5beeef402712d1da86c73250a70ebe45bad4f4ed885f321d6cd724be6d0aae3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63f804732786990edc721fd7eea4b9c8ac572207772d44acff32c34ebd1c8a2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "63f804732786990edc721fd7eea4b9c8ac572207772d44acff32c34ebd1c8a2d", kill_on_drop: false }`
[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 1.35s
[INFO] running `Command { std: "docker" "inspect" "63f804732786990edc721fd7eea4b9c8ac572207772d44acff32c34ebd1c8a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f804732786990edc721fd7eea4b9c8ac572207772d44acff32c34ebd1c8a2d", kill_on_drop: false }`
[INFO] [stdout] 63f804732786990edc721fd7eea4b9c8ac572207772d44acff32c34ebd1c8a2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17719babc6f05dd32656e3d24fb9040685784481d496cd163b4b83c27b1bebd0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "17719babc6f05dd32656e3d24fb9040685784481d496cd163b4b83c27b1bebd0", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `answer`
[INFO] [stderr]    --> src/main.rs:367:9
[INFO] [stderr]     |
[INFO] [stderr] 367 |     let answer: String = read!();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/happy_birthday-fdb956f2583f7f71
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17719babc6f05dd32656e3d24fb9040685784481d496cd163b4b83c27b1bebd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17719babc6f05dd32656e3d24fb9040685784481d496cd163b4b83c27b1bebd0", kill_on_drop: false }`
[INFO] [stdout] 17719babc6f05dd32656e3d24fb9040685784481d496cd163b4b83c27b1bebd0