[INFO] fetching crate bufferpool 0.1.7...
[INFO] testing bufferpool-0.1.7 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bufferpool 0.1.7 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bufferpool 0.1.7 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 bufferpool 0.1.7
[INFO] finished tweaking crates.io crate bufferpool 0.1.7
[INFO] tweaked toml for crates.io crate bufferpool 0.1.7 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate bufferpool 0.1.7 already has a lockfile, it will not be regenerated
[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-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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d818f4dfdd5bcbc5ffa49886ba434d04a239b0bf82f81a09afaa32efa1295d4
[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" "9d818f4dfdd5bcbc5ffa49886ba434d04a239b0bf82f81a09afaa32efa1295d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d818f4dfdd5bcbc5ffa49886ba434d04a239b0bf82f81a09afaa32efa1295d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d818f4dfdd5bcbc5ffa49886ba434d04a239b0bf82f81a09afaa32efa1295d4", kill_on_drop: false }`
[INFO] [stdout] 9d818f4dfdd5bcbc5ffa49886ba434d04a239b0bf82f81a09afaa32efa1295d4
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77069284319a747bf7853a72c0913037a601d13c131cf5c02eae171e509f1e31
[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" "77069284319a747bf7853a72c0913037a601d13c131cf5c02eae171e509f1e31", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufferpool v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "77069284319a747bf7853a72c0913037a601d13c131cf5c02eae171e509f1e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77069284319a747bf7853a72c0913037a601d13c131cf5c02eae171e509f1e31", kill_on_drop: false }`
[INFO] [stdout] 77069284319a747bf7853a72c0913037a601d13c131cf5c02eae171e509f1e31
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67fdd5d417139761c08895e52427b604e08b8d4ff979bcfb4b8655f95b40ca89
[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" "67fdd5d417139761c08895e52427b604e08b8d4ff979bcfb4b8655f95b40ca89", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufferpool v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "67fdd5d417139761c08895e52427b604e08b8d4ff979bcfb4b8655f95b40ca89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67fdd5d417139761c08895e52427b604e08b8d4ff979bcfb4b8655f95b40ca89", kill_on_drop: false }`
[INFO] [stdout] 67fdd5d417139761c08895e52427b604e08b8d4ff979bcfb4b8655f95b40ca89
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6c03c077bfa2e385e1996a8d5c9b86861ed036e7014686455d283f8587293af
[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" "d6c03c077bfa2e385e1996a8d5c9b86861ed036e7014686455d283f8587293af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bufferpool-fba23ffeac1c1d5a
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::it_should_add_capacity ... ok
[INFO] [stdout] test tests::it_should_get_space_if_capacity ... ok
[INFO] [stdout] test tests::it_should_not_default_space_when_deallocated ... ok
[INFO] [stdout] test tests::it_should_still_work_if_parent_is_dropped ... ok
[INFO] [stdout] test tests::it_should_return_space_when_deallocated ... ok
[INFO] [stdout] test tests::it_should_update_internal_buffer ... ok
[INFO] [stdout] test tests::it_should_clear_space_if_explicitly_requested ... ok
[INFO] [stdout] test tests::it_should_work_with_interesting_sizes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bufferpool
[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" "d6c03c077bfa2e385e1996a8d5c9b86861ed036e7014686455d283f8587293af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c03c077bfa2e385e1996a8d5c9b86861ed036e7014686455d283f8587293af", kill_on_drop: false }`
[INFO] [stdout] d6c03c077bfa2e385e1996a8d5c9b86861ed036e7014686455d283f8587293af