[INFO] fetching crate gaps 0.2.1...
[INFO] testing gaps-0.2.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gaps 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gaps 0.2.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gaps 0.2.1
[INFO] finished tweaking crates.io crate gaps 0.2.1
[INFO] tweaked toml for crates.io crate gaps 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 023fcd0abbf8a96411c569b64f47d037219d9d59c218f316a38b6b5bb7f7c86f
[INFO] running `Command { std: "docker" "start" "-a" "023fcd0abbf8a96411c569b64f47d037219d9d59c218f316a38b6b5bb7f7c86f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "023fcd0abbf8a96411c569b64f47d037219d9d59c218f316a38b6b5bb7f7c86f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023fcd0abbf8a96411c569b64f47d037219d9d59c218f316a38b6b5bb7f7c86f", kill_on_drop: false }`
[INFO] [stdout] 023fcd0abbf8a96411c569b64f47d037219d9d59c218f316a38b6b5bb7f7c86f
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b610050c7b4dd70db1feba647441cef50f310a8c7a147ba4f5f2c92a731f568
[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" "9b610050c7b4dd70db1feba647441cef50f310a8c7a147ba4f5f2c92a731f568", kill_on_drop: false }`
[INFO] [stderr]    Compiling gaps v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "9b610050c7b4dd70db1feba647441cef50f310a8c7a147ba4f5f2c92a731f568", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b610050c7b4dd70db1feba647441cef50f310a8c7a147ba4f5f2c92a731f568", kill_on_drop: false }`
[INFO] [stdout] 9b610050c7b4dd70db1feba647441cef50f310a8c7a147ba4f5f2c92a731f568
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae3ad9bfa178e46e94a98e05667f812ee0c165c8cb7097a80e756d8853d19c73
[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" "ae3ad9bfa178e46e94a98e05667f812ee0c165c8cb7097a80e756d8853d19c73", kill_on_drop: false }`
[INFO] [stderr]    Compiling gaps v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "ae3ad9bfa178e46e94a98e05667f812ee0c165c8cb7097a80e756d8853d19c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae3ad9bfa178e46e94a98e05667f812ee0c165c8cb7097a80e756d8853d19c73", kill_on_drop: false }`
[INFO] [stdout] ae3ad9bfa178e46e94a98e05667f812ee0c165c8cb7097a80e756d8853d19c73
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] a17077d2e893f5dad356c451f78c22b673679eaa807e448e4567841ea6316748
[INFO] running `Command { std: "docker" "start" "-a" "a17077d2e893f5dad356c451f78c22b673679eaa807e448e4567841ea6316748", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gaps-f6d872a725adf402
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test bounds::tests::end_less_than_end ... ok
[INFO] [stdout] test bounds::tests::start_less_than_or_equal_start ... ok
[INFO] [stdout] test bounds::tests::start_less_than_start ... ok
[INFO] [stdout] test bounds::tests::start_less_or_equal_end ... ok
[INFO] [stdout] test inc::tests::increment ... ok
[INFO] [stderr]    Doc-tests gaps
[INFO] [stdout] test gaps::tests::panic_when_non_ascending ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/gaps.rs - gaps::Gappable (line 130) ... ok
[INFO] [stdout] test src/gaps.rs - gaps::RangeGappable (line 168) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a17077d2e893f5dad356c451f78c22b673679eaa807e448e4567841ea6316748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a17077d2e893f5dad356c451f78c22b673679eaa807e448e4567841ea6316748", kill_on_drop: false }`
[INFO] [stdout] a17077d2e893f5dad356c451f78c22b673679eaa807e448e4567841ea6316748