[INFO] cloning repository https://github.com/euclidthedark/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/euclidthedark/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidthedark%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidthedark%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f848cd1b646657e51ad729e7783eea65a88483d
[INFO] testing euclidthedark/learning-rust against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidthedark%2Flearning-rust" "/workspace/builds/worker-90/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-90/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/euclidthedark/learning-rust on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/euclidthedark/learning-rust
[INFO] finished tweaking git repo https://github.com/euclidthedark/learning-rust
[INFO] tweaked toml for git repo https://github.com/euclidthedark/learning-rust written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate git repo https://github.com/euclidthedark/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0f915ecde5bd1d4b7a6a7f4406d8b6da9ae1fc3d2a025de809e2feda439948e
[INFO] running `Command { std: "docker" "start" "-a" "b0f915ecde5bd1d4b7a6a7f4406d8b6da9ae1fc3d2a025de809e2feda439948e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0f915ecde5bd1d4b7a6a7f4406d8b6da9ae1fc3d2a025de809e2feda439948e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f915ecde5bd1d4b7a6a7f4406d8b6da9ae1fc3d2a025de809e2feda439948e", kill_on_drop: false }`
[INFO] [stdout] b0f915ecde5bd1d4b7a6a7f4406d8b6da9ae1fc3d2a025de809e2feda439948e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf8784da05aa5bbe0c15599c86af08a327496113216012657654e0a9b855ed35
[INFO] running `Command { std: "docker" "start" "-a" "bf8784da05aa5bbe0c15599c86af08a327496113216012657654e0a9b855ed35", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `find_two_number_sum_with_hash_map`
[INFO] [stdout]  --> src/math/sums.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn find_two_number_sum_with_hash_map(target: i32, integer_vector: &Vec<i32>) -> Option<(i32, i32)> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_two_number_sum_with_pointers`
[INFO] [stdout]   --> src/math/sums.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn find_two_number_sum_with_pointers(target: i32, integer_vector: &Vec<i32>) -> Option<(i32, i32)> {
[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 0.48s
[INFO] running `Command { std: "docker" "inspect" "bf8784da05aa5bbe0c15599c86af08a327496113216012657654e0a9b855ed35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8784da05aa5bbe0c15599c86af08a327496113216012657654e0a9b855ed35", kill_on_drop: false }`
[INFO] [stdout] bf8784da05aa5bbe0c15599c86af08a327496113216012657654e0a9b855ed35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f85276ff636b69c80105d53ddba1358b31900d7f300df07dee478d176e126b35
[INFO] running `Command { std: "docker" "start" "-a" "f85276ff636b69c80105d53ddba1358b31900d7f300df07dee478d176e126b35", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "f85276ff636b69c80105d53ddba1358b31900d7f300df07dee478d176e126b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f85276ff636b69c80105d53ddba1358b31900d7f300df07dee478d176e126b35", kill_on_drop: false }`
[INFO] [stdout] f85276ff636b69c80105d53ddba1358b31900d7f300df07dee478d176e126b35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15813d637c0ca91d6dc247d91798956bde9ec2993e8862cf9974d833bf54b22c
[INFO] running `Command { std: "docker" "start" "-a" "15813d637c0ca91d6dc247d91798956bde9ec2993e8862cf9974d833bf54b22c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.72s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learning_rust-1355ebca1ff43996)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test math::sums::test::when_given_a_target_and_a_vector_of_ints_using_hash_map ... ok
[INFO] [stdout] test math::sums::test::when_given_a_target_and_a_vector_of_ints_using_pointers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15813d637c0ca91d6dc247d91798956bde9ec2993e8862cf9974d833bf54b22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15813d637c0ca91d6dc247d91798956bde9ec2993e8862cf9974d833bf54b22c", kill_on_drop: false }`
[INFO] [stdout] 15813d637c0ca91d6dc247d91798956bde9ec2993e8862cf9974d833bf54b22c