[INFO] fetching crate nbd 0.2.3...
[INFO] testing nbd-0.2.3 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate nbd 0.2.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nbd 0.2.3 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nbd 0.2.3
[INFO] finished tweaking crates.io crate nbd 0.2.3
[INFO] tweaked toml for crates.io crate nbd 0.2.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nbd 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a0022214d78259142b9a6a80f529f931eeac82d14d94421e88d962b8675de46
[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" "3a0022214d78259142b9a6a80f529f931eeac82d14d94421e88d962b8675de46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a0022214d78259142b9a6a80f529f931eeac82d14d94421e88d962b8675de46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0022214d78259142b9a6a80f529f931eeac82d14d94421e88d962b8675de46", kill_on_drop: false }`
[INFO] [stdout] 3a0022214d78259142b9a6a80f529f931eeac82d14d94421e88d962b8675de46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7085263be749331c663bc3c1d9e2619281500dd3c1c95dad8ae353d3bf2155f0
[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" "7085263be749331c663bc3c1d9e2619281500dd3c1c95dad8ae353d3bf2155f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.2.4
[INFO] [stderr]    Compiling nbd v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "7085263be749331c663bc3c1d9e2619281500dd3c1c95dad8ae353d3bf2155f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7085263be749331c663bc3c1d9e2619281500dd3c1c95dad8ae353d3bf2155f0", kill_on_drop: false }`
[INFO] [stdout] 7085263be749331c663bc3c1d9e2619281500dd3c1c95dad8ae353d3bf2155f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5f7a67c7a7d22beea87af6d7f16070f989e1c4373b1eb0f6a76e0558cc8b16a
[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" "b5f7a67c7a7d22beea87af6d7f16070f989e1c4373b1eb0f6a76e0558cc8b16a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling pipe v0.0.3
[INFO] [stderr]    Compiling readwrite v0.1.0
[INFO] [stderr]    Compiling wait-timeout v0.1.5
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling tempfile v3.0.3
[INFO] [stderr]    Compiling rusty-fork v0.2.0
[INFO] [stderr]    Compiling proptest v0.8.4
[INFO] [stderr]    Compiling nbd v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.86s
[INFO] running `Command { std: "docker" "inspect" "b5f7a67c7a7d22beea87af6d7f16070f989e1c4373b1eb0f6a76e0558cc8b16a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f7a67c7a7d22beea87af6d7f16070f989e1c4373b1eb0f6a76e0558cc8b16a", kill_on_drop: false }`
[INFO] [stdout] b5f7a67c7a7d22beea87af6d7f16070f989e1c4373b1eb0f6a76e0558cc8b16a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38af6257eafe7772c6dc030c25ffffd7639b6e829b3ab7b5ca46d046d79a4ce2
[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" "38af6257eafe7772c6dc030c25ffffd7639b6e829b3ab7b5ca46d046d79a4ce2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nbd-4e18f7c626668979
[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] [stderr]      Running /opt/rustwide/target/debug/deps/fuzz_hs-da824d0324898256
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test fuzz_client_hs ... ok
[INFO] [stdout] test fuzz_server_hs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fuzz_roundtrip-24156544919c9a55
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test fuzz_roundtrip ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fuzz_transmission-8b0ab6d304cdd234
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test fuzz_server_transmission ... ok
[INFO] [stdout] test fuzz_client_transmission ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nbd
[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" "38af6257eafe7772c6dc030c25ffffd7639b6e829b3ab7b5ca46d046d79a4ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38af6257eafe7772c6dc030c25ffffd7639b6e829b3ab7b5ca46d046d79a4ce2", kill_on_drop: false }`
[INFO] [stdout] 38af6257eafe7772c6dc030c25ffffd7639b6e829b3ab7b5ca46d046d79a4ce2