[INFO] updating cached repository https://github.com/mshassium/happy_birthday
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6ddb6df528308257725313544e6f3c2af077743
[INFO] testing mshassium/happy_birthday against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmshassium%2Fhappy_birthday" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mshassium/happy_birthday on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-14/source/Cargo.toml
[INFO] crate git repo https://github.com/mshassium/happy_birthday already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stdout] f21b20991a006d975b248ce029311784476e351d0efc22c092051518405131bd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "f21b20991a006d975b248ce029311784476e351d0efc22c092051518405131bd"`
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling happy_birthday v0.1.0 (/opt/rustwide/workdir)
[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 dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "f21b20991a006d975b248ce029311784476e351d0efc22c092051518405131bd"`
[INFO] running `"docker" "rm" "-f" "f21b20991a006d975b248ce029311784476e351d0efc22c092051518405131bd"`
[INFO] [stdout] f21b20991a006d975b248ce029311784476e351d0efc22c092051518405131bd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdc464f71c7d28064f1b79d813db95cdf1186c715f34abd9c63d6bd41397e5b0
[INFO] running `"docker" "start" "-a" "cdc464f71c7d28064f1b79d813db95cdf1186c715f34abd9c63d6bd41397e5b0"`
[INFO] [stderr]    Compiling happy_birthday v0.1.0 (/opt/rustwide/workdir)
[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 1.41s
[INFO] running `"docker" "inspect" "cdc464f71c7d28064f1b79d813db95cdf1186c715f34abd9c63d6bd41397e5b0"`
[INFO] running `"docker" "rm" "-f" "cdc464f71c7d28064f1b79d813db95cdf1186c715f34abd9c63d6bd41397e5b0"`
[INFO] [stdout] cdc464f71c7d28064f1b79d813db95cdf1186c715f34abd9c63d6bd41397e5b0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b99ad9b3ddbca225c599f7fd707555b746ea37f04919693f07f39cfa333bfa12
[INFO] running `"docker" "start" "-a" "b99ad9b3ddbca225c599f7fd707555b746ea37f04919693f07f39cfa333bfa12"`
[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 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/happy_birthday-5c69786640259783
[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 `"docker" "inspect" "b99ad9b3ddbca225c599f7fd707555b746ea37f04919693f07f39cfa333bfa12"`
[INFO] running `"docker" "rm" "-f" "b99ad9b3ddbca225c599f7fd707555b746ea37f04919693f07f39cfa333bfa12"`
[INFO] [stdout] b99ad9b3ddbca225c599f7fd707555b746ea37f04919693f07f39cfa333bfa12