[INFO] fetching crate alo 0.3.0...
[INFO] testing alo-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate alo 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate alo 0.3.0 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 crates.io crate alo 0.3.0
[INFO] finished tweaking crates.io crate alo 0.3.0
[INFO] tweaked toml for crates.io crate alo 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] d2f01754eb37c708bd40436e2bf433d1bdf2203da6f00597ae99b9d12edc860a
[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" "d2f01754eb37c708bd40436e2bf433d1bdf2203da6f00597ae99b9d12edc860a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2f01754eb37c708bd40436e2bf433d1bdf2203da6f00597ae99b9d12edc860a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f01754eb37c708bd40436e2bf433d1bdf2203da6f00597ae99b9d12edc860a", kill_on_drop: false }`
[INFO] [stdout] d2f01754eb37c708bd40436e2bf433d1bdf2203da6f00597ae99b9d12edc860a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 98917d59bee2303c1d06c2bae9373c83b1b3f76820c22c5bf0890d587260912f
[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" "98917d59bee2303c1d06c2bae9373c83b1b3f76820c22c5bf0890d587260912f", kill_on_drop: false }`
[INFO] [stderr]    Compiling alo v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "98917d59bee2303c1d06c2bae9373c83b1b3f76820c22c5bf0890d587260912f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98917d59bee2303c1d06c2bae9373c83b1b3f76820c22c5bf0890d587260912f", kill_on_drop: false }`
[INFO] [stdout] 98917d59bee2303c1d06c2bae9373c83b1b3f76820c22c5bf0890d587260912f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 6fe8cd0e7c608037cbc5190a647f8200e0ae3b377671155e51e519dd15e18b3b
[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" "6fe8cd0e7c608037cbc5190a647f8200e0ae3b377671155e51e519dd15e18b3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling alo v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "6fe8cd0e7c608037cbc5190a647f8200e0ae3b377671155e51e519dd15e18b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe8cd0e7c608037cbc5190a647f8200e0ae3b377671155e51e519dd15e18b3b", kill_on_drop: false }`
[INFO] [stdout] 6fe8cd0e7c608037cbc5190a647f8200e0ae3b377671155e51e519dd15e18b3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 58186765d27693015a2edb39ddfba0a0b475fe18806819c4f2a7ecacdbaa7f2d
[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" "58186765d27693015a2edb39ddfba0a0b475fe18806819c4f2a7ecacdbaa7f2d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/alo-30145e7f9c3e1f40
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test::get ... ok
[INFO] [stdout] test test::ord_single_and_many ... ok
[INFO] [stdout] test test::removeing_item_should_return_removed_value ... ok
[INFO] [stdout] test test::ord_many_and_many ... ok
[INFO] [stdout] test test::ord_singles ... ok
[INFO] [stdout] test test::removing_by_out_of_bound_index_should_panic ... ok
[INFO] [stdout] test test::removing_from_alo_which_contains_only_one_item_should_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests alo
[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" "58186765d27693015a2edb39ddfba0a0b475fe18806819c4f2a7ecacdbaa7f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58186765d27693015a2edb39ddfba0a0b475fe18806819c4f2a7ecacdbaa7f2d", kill_on_drop: false }`
[INFO] [stdout] 58186765d27693015a2edb39ddfba0a0b475fe18806819c4f2a7ecacdbaa7f2d