[INFO] cloning repository https://github.com/ciuncan/algorithms_exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ciuncan/algorithms_exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fciuncan%2Falgorithms_exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fciuncan%2Falgorithms_exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3b0d81c17ee45b5dc76b9ae7c8a3f272dfaa876
[INFO] testing ciuncan/algorithms_exercise against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fciuncan%2Falgorithms_exercise" "/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/ciuncan/algorithms_exercise on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ciuncan/algorithms_exercise
[INFO] finished tweaking git repo https://github.com/ciuncan/algorithms_exercise
[INFO] tweaked toml for git repo https://github.com/ciuncan/algorithms_exercise written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ciuncan/algorithms_exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proptest v0.10.0
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a314308a650a9fa1553d156759ed5621c20cf8365f38af3d9e6b2f2cd0b3fc1
[INFO] running `Command { std: "docker" "start" "-a" "3a314308a650a9fa1553d156759ed5621c20cf8365f38af3d9e6b2f2cd0b3fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a314308a650a9fa1553d156759ed5621c20cf8365f38af3d9e6b2f2cd0b3fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a314308a650a9fa1553d156759ed5621c20cf8365f38af3d9e6b2f2cd0b3fc1", kill_on_drop: false }`
[INFO] [stdout] 3a314308a650a9fa1553d156759ed5621c20cf8365f38af3d9e6b2f2cd0b3fc1
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1926e8943d518e3b2cee01baf738fbce174660658cb3904ee4be5822015805b0
[INFO] running `Command { std: "docker" "start" "-a" "1926e8943d518e3b2cee01baf738fbce174660658cb3904ee4be5822015805b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling algorithms_exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "1926e8943d518e3b2cee01baf738fbce174660658cb3904ee4be5822015805b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1926e8943d518e3b2cee01baf738fbce174660658cb3904ee4be5822015805b0", kill_on_drop: false }`
[INFO] [stdout] 1926e8943d518e3b2cee01baf738fbce174660658cb3904ee4be5822015805b0
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0e3b224a996f49d1ee4a69cfec035730e12919a170292e1bb3c2781f8fb792d8
[INFO] running `Command { std: "docker" "start" "-a" "0e3b224a996f49d1ee4a69cfec035730e12919a170292e1bb3c2781f8fb792d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v0.10.0
[INFO] [stderr]    Compiling algorithms_exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.30s
[INFO] running `Command { std: "docker" "inspect" "0e3b224a996f49d1ee4a69cfec035730e12919a170292e1bb3c2781f8fb792d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3b224a996f49d1ee4a69cfec035730e12919a170292e1bb3c2781f8fb792d8", kill_on_drop: false }`
[INFO] [stdout] 0e3b224a996f49d1ee4a69cfec035730e12919a170292e1bb3c2781f8fb792d8
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 512de148836657c85a0fe6d5ddbea8a33e5b69c03b431308a99a1da17c5354ed
[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" "512de148836657c85a0fe6d5ddbea8a33e5b69c03b431308a99a1da17c5354ed", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/algorithms_exercise-3f15920cf8d02910
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test heap::tests::heap_property_should_hold_for_all_parents_and_their_children ... ok
[INFO] [stdout] test heap::tests::find_top_should_be_maximum_in_any_max_heap ... ok
[INFO] [stdout] test heap::tests::extracting_top_item_should_reduce_its_occurrence_by_one ... ok
[INFO] [stdout] test heap::tests::find_top_should_be_minimum_in_any_min_heap ... ok
[INFO] [stdout] test heap::tests::doing_random_inserts_and_extracts_should_not_break_heap_property ... ok
[INFO] [stdout] test binary_search::tests::find_correct_index_of_an_existing_item ... ok
[INFO] [stdout] test binary_search::tests::find_the_same_result_as_vec_binary_search ... ok
[INFO] [stdout] test heap::tests::extracting_top_item_should_keep_heap_property_for_all_parents ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 13.65s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algorithms_exercise
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "512de148836657c85a0fe6d5ddbea8a33e5b69c03b431308a99a1da17c5354ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512de148836657c85a0fe6d5ddbea8a33e5b69c03b431308a99a1da17c5354ed", kill_on_drop: false }`
[INFO] [stdout] 512de148836657c85a0fe6d5ddbea8a33e5b69c03b431308a99a1da17c5354ed