[INFO] fetching crate lfu 0.2.5...
[INFO] testing lfu-0.2.5 against 1.49.0 for beta-1.50-1
[INFO] extracting crate lfu 0.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate lfu 0.2.5 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 lfu 0.2.5
[INFO] finished tweaking crates.io crate lfu 0.2.5
[INFO] tweaked toml for crates.io crate lfu 0.2.5 written to /workspace/builds/worker-7/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0e05fa7d9cf1c442b8ecbae118525bec74fac11653a56a6f8ab323de1fc9057
[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" "f0e05fa7d9cf1c442b8ecbae118525bec74fac11653a56a6f8ab323de1fc9057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0e05fa7d9cf1c442b8ecbae118525bec74fac11653a56a6f8ab323de1fc9057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e05fa7d9cf1c442b8ecbae118525bec74fac11653a56a6f8ab323de1fc9057", kill_on_drop: false }`
[INFO] [stdout] f0e05fa7d9cf1c442b8ecbae118525bec74fac11653a56a6f8ab323de1fc9057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68b7d4e812f4ddca2c067fa7d3f29dca505850ef5490056cebe6a7849ff1fd7a
[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" "68b7d4e812f4ddca2c067fa7d3f29dca505850ef5490056cebe6a7849ff1fd7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "68b7d4e812f4ddca2c067fa7d3f29dca505850ef5490056cebe6a7849ff1fd7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b7d4e812f4ddca2c067fa7d3f29dca505850ef5490056cebe6a7849ff1fd7a", kill_on_drop: false }`
[INFO] [stdout] 68b7d4e812f4ddca2c067fa7d3f29dca505850ef5490056cebe6a7849ff1fd7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 672cbc098ea193e9c26150b736586f6518f99a0458f9fe28c8362e55a5832b7a
[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" "672cbc098ea193e9c26150b736586f6518f99a0458f9fe28c8362e55a5832b7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "672cbc098ea193e9c26150b736586f6518f99a0458f9fe28c8362e55a5832b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "672cbc098ea193e9c26150b736586f6518f99a0458f9fe28c8362e55a5832b7a", kill_on_drop: false }`
[INFO] [stdout] 672cbc098ea193e9c26150b736586f6518f99a0458f9fe28c8362e55a5832b7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68a638a5d2d2d2e16b26b2c3bf8b611bcdf427cd05f5ced94ff37cb56d21d286
[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" "68a638a5d2d2d2e16b26b2c3bf8b611bcdf427cd05f5ced94ff37cb56d21d286", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 8 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lfu-df5bc85cf7ea4a90
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::test_key_frequency_update ... ok
[INFO] [stdout] test tests::test_lfu_deletion ... ok
[INFO] [stdout] test tests::test_lfu_indexing ... ok
[INFO] [stdout] test tests::test_lfu_consumption ... ok
[INFO] [stdout] test tests::test_lru_eviction ... ok
[INFO] [stdout] test tests::test_lfu_iter ... ok
[INFO] [stderr]    Doc-tests lfu
[INFO] [stdout] test tests::test_duplicates ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68a638a5d2d2d2e16b26b2c3bf8b611bcdf427cd05f5ced94ff37cb56d21d286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68a638a5d2d2d2e16b26b2c3bf8b611bcdf427cd05f5ced94ff37cb56d21d286", kill_on_drop: false }`
[INFO] [stdout] 68a638a5d2d2d2e16b26b2c3bf8b611bcdf427cd05f5ced94ff37cb56d21d286