[INFO] cloning repository https://github.com/gedkott/rust-random-problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gedkott/rust-random-problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgedkott%2Frust-random-problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgedkott%2Frust-random-problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3393c0ff316128eb5aa0e488a895247e7cf369a
[INFO] testing gedkott/rust-random-problems against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgedkott%2Frust-random-problems" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gedkott/rust-random-problems on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gedkott/rust-random-problems
[INFO] finished tweaking git repo https://github.com/gedkott/rust-random-problems
[INFO] tweaked toml for git repo https://github.com/gedkott/rust-random-problems written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/gedkott/rust-random-problems already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7516bf613c0ca4a5144135a2977040ceefd581b9e8c0647c5c8c3b6e104bc43
[INFO] running `Command { std: "docker" "start" "-a" "f7516bf613c0ca4a5144135a2977040ceefd581b9e8c0647c5c8c3b6e104bc43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7516bf613c0ca4a5144135a2977040ceefd581b9e8c0647c5c8c3b6e104bc43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7516bf613c0ca4a5144135a2977040ceefd581b9e8c0647c5c8c3b6e104bc43", kill_on_drop: false }`
[INFO] [stdout] f7516bf613c0ca4a5144135a2977040ceefd581b9e8c0647c5c8c3b6e104bc43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64e099e7c7c4e0f4777e0dc5bae8890f68155fdd0863f60f1222e46b2c7623a4
[INFO] running `Command { std: "docker" "start" "-a" "64e099e7c7c4e0f4777e0dc5bae8890f68155fdd0863f60f1222e46b2c7623a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling random-problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `sparse_arrays`
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn sparse_arrays(strings: &[&str], queries: &[&str]) -> Vec<usize> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sparse_arrays_with_hash_map`
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn sparse_arrays_with_hash_map<'a>(strings: &[&'a str], queries: &[&str]) -> Vec<usize> {
[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 1.29s
[INFO] running `Command { std: "docker" "inspect" "64e099e7c7c4e0f4777e0dc5bae8890f68155fdd0863f60f1222e46b2c7623a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e099e7c7c4e0f4777e0dc5bae8890f68155fdd0863f60f1222e46b2c7623a4", kill_on_drop: false }`
[INFO] [stdout] 64e099e7c7c4e0f4777e0dc5bae8890f68155fdd0863f60f1222e46b2c7623a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddc5360998af9c6b1d00fac830ea70e75d324a8a08a3d9180f5873a2bf2662ce
[INFO] running `Command { std: "docker" "start" "-a" "ddc5360998af9c6b1d00fac830ea70e75d324a8a08a3d9180f5873a2bf2662ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling random-problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "ddc5360998af9c6b1d00fac830ea70e75d324a8a08a3d9180f5873a2bf2662ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc5360998af9c6b1d00fac830ea70e75d324a8a08a3d9180f5873a2bf2662ce", kill_on_drop: false }`
[INFO] [stdout] ddc5360998af9c6b1d00fac830ea70e75d324a8a08a3d9180f5873a2bf2662ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11bc9e7f69461c1bff7dbad3386d87c7e681820d59b39b2eb1c4045dc2fd61e4
[INFO] running `Command { std: "docker" "start" "-a" "11bc9e7f69461c1bff7dbad3386d87c7e681820d59b39b2eb1c4045dc2fd61e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/random_problems-401d4b3c67936765)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_sparse_arrays ... ok
[INFO] [stdout] test test_sparse_arrays_with_hash_map ... ok
[INFO] [stdout] test test_sparse_arrays_with_hash_map_with_strings ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "11bc9e7f69461c1bff7dbad3386d87c7e681820d59b39b2eb1c4045dc2fd61e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bc9e7f69461c1bff7dbad3386d87c7e681820d59b39b2eb1c4045dc2fd61e4", kill_on_drop: false }`
[INFO] [stdout] 11bc9e7f69461c1bff7dbad3386d87c7e681820d59b39b2eb1c4045dc2fd61e4