[INFO] crate bufferpool 0.1.7 is already in cache
[INFO] testing bufferpool-0.1.7 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate bufferpool 0.1.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate bufferpool 0.1.7 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-1/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" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb41558f1f8a03b7cb305fdd880c2ed7f7b28771177d028650d1c0fa8587b434
[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" "eb41558f1f8a03b7cb305fdd880c2ed7f7b28771177d028650d1c0fa8587b434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb41558f1f8a03b7cb305fdd880c2ed7f7b28771177d028650d1c0fa8587b434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb41558f1f8a03b7cb305fdd880c2ed7f7b28771177d028650d1c0fa8587b434", kill_on_drop: false }`
[INFO] [stdout] eb41558f1f8a03b7cb305fdd880c2ed7f7b28771177d028650d1c0fa8587b434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 834e59ffe92d36eb1b2805e8b93ec3718ca0e6f027ce143e092a0fdaf3709118
[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" "834e59ffe92d36eb1b2805e8b93ec3718ca0e6f027ce143e092a0fdaf3709118", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufferpool v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "834e59ffe92d36eb1b2805e8b93ec3718ca0e6f027ce143e092a0fdaf3709118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "834e59ffe92d36eb1b2805e8b93ec3718ca0e6f027ce143e092a0fdaf3709118", kill_on_drop: false }`
[INFO] [stdout] 834e59ffe92d36eb1b2805e8b93ec3718ca0e6f027ce143e092a0fdaf3709118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a74900dcb0f1459e846628e6e4bcd39fb28ec3860e13d9ccf38eace8297b2968
[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" "a74900dcb0f1459e846628e6e4bcd39fb28ec3860e13d9ccf38eace8297b2968", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufferpool v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "a74900dcb0f1459e846628e6e4bcd39fb28ec3860e13d9ccf38eace8297b2968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a74900dcb0f1459e846628e6e4bcd39fb28ec3860e13d9ccf38eace8297b2968", kill_on_drop: false }`
[INFO] [stdout] a74900dcb0f1459e846628e6e4bcd39fb28ec3860e13d9ccf38eace8297b2968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7560bb55a843cdb2a0f1db5041f103390428c96692d66d1df3f27a5d268dddf7
[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" "7560bb55a843cdb2a0f1db5041f103390428c96692d66d1df3f27a5d268dddf7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bufferpool-2f3d71c114e2cbdf
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::it_should_update_internal_buffer ... ok
[INFO] [stdout] test tests::it_should_return_space_when_deallocated ... ok
[INFO] [stdout] test tests::it_should_add_capacity ... ok
[INFO] [stdout] test tests::it_should_not_default_space_when_deallocated ... ok
[INFO] [stdout] test tests::it_should_get_space_if_capacity ... ok
[INFO] [stdout] test tests::it_should_still_work_if_parent_is_dropped ... ok
[INFO] [stdout] test tests::it_should_clear_space_if_explicitly_requested ... ok
[INFO] [stderr]    Doc-tests bufferpool
[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] [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" "7560bb55a843cdb2a0f1db5041f103390428c96692d66d1df3f27a5d268dddf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7560bb55a843cdb2a0f1db5041f103390428c96692d66d1df3f27a5d268dddf7", kill_on_drop: false }`
[INFO] [stdout] 7560bb55a843cdb2a0f1db5041f103390428c96692d66d1df3f27a5d268dddf7