[INFO] fetching crate prefixtree 0.1.3...
[INFO] testing prefixtree-0.1.3 against 1.45.2 for beta-1.46-1
[INFO] extracting crate prefixtree 0.1.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate prefixtree 0.1.3 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prefixtree 0.1.3
[INFO] finished tweaking crates.io crate prefixtree 0.1.3
[INFO] tweaked toml for crates.io crate prefixtree 0.1.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f367acbfcbff513b1dab7191c9718a189101b963ab52704756cab16cc3eba66b
[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" "f367acbfcbff513b1dab7191c9718a189101b963ab52704756cab16cc3eba66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f367acbfcbff513b1dab7191c9718a189101b963ab52704756cab16cc3eba66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f367acbfcbff513b1dab7191c9718a189101b963ab52704756cab16cc3eba66b", kill_on_drop: false }`
[INFO] [stdout] f367acbfcbff513b1dab7191c9718a189101b963ab52704756cab16cc3eba66b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60e13a7ede87f9c58c362719243e9a01c49149700e518a38dd36b6b4030951f7
[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" "60e13a7ede87f9c58c362719243e9a01c49149700e518a38dd36b6b4030951f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling prefixtree v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "60e13a7ede87f9c58c362719243e9a01c49149700e518a38dd36b6b4030951f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60e13a7ede87f9c58c362719243e9a01c49149700e518a38dd36b6b4030951f7", kill_on_drop: false }`
[INFO] [stdout] 60e13a7ede87f9c58c362719243e9a01c49149700e518a38dd36b6b4030951f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] b1ded6df43bac2f4b18fa6189b93ef1ff5f60a073f5bd8da0404e872e6ede2cc
[INFO] running `Command { std: "docker" "start" "-a" "b1ded6df43bac2f4b18fa6189b93ef1ff5f60a073f5bd8da0404e872e6ede2cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling prefixtree v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "b1ded6df43bac2f4b18fa6189b93ef1ff5f60a073f5bd8da0404e872e6ede2cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ded6df43bac2f4b18fa6189b93ef1ff5f60a073f5bd8da0404e872e6ede2cc", kill_on_drop: false }`
[INFO] [stdout] b1ded6df43bac2f4b18fa6189b93ef1ff5f60a073f5bd8da0404e872e6ede2cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b1bd6f1bbe41a6176232d0523598451b7e2a42c9eab04bb2b81a693dd530238b
[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" "b1bd6f1bbe41a6176232d0523598451b7e2a42c9eab04bb2b81a693dd530238b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prefixtree-e6673addcbd3195f
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/seek-cc7949e81fb84088
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::one_char_test ... ok
[INFO] [stdout] test tests::one_word_test ... ok
[INFO] [stdout] test tests::two_word_test ... ok
[INFO] [stdout] test tests::vec_of_vec_test ... ok
[INFO] [stdout] test tests::three_word_test ... ok
[INFO] [stdout] test tests::vec_of_str_vec_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefixtree
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b1bd6f1bbe41a6176232d0523598451b7e2a42c9eab04bb2b81a693dd530238b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1bd6f1bbe41a6176232d0523598451b7e2a42c9eab04bb2b81a693dd530238b", kill_on_drop: false }`
[INFO] [stdout] b1bd6f1bbe41a6176232d0523598451b7e2a42c9eab04bb2b81a693dd530238b