[INFO] fetching crate nbdkit 0.1.0...
[INFO] testing nbdkit-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate nbdkit 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nbdkit 0.1.0 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 nbdkit 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nbdkit 0.1.0
[INFO] tweaked toml for crates.io crate nbdkit 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate nbdkit 0.1.0 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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6c1da2279fc3bb9dcbd8d739dc053dcf832229f65a7d69b7aa88c1cc5512977a
[INFO] running `Command { std: "docker" "start" "-a" "6c1da2279fc3bb9dcbd8d739dc053dcf832229f65a7d69b7aa88c1cc5512977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c1da2279fc3bb9dcbd8d739dc053dcf832229f65a7d69b7aa88c1cc5512977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1da2279fc3bb9dcbd8d739dc053dcf832229f65a7d69b7aa88c1cc5512977a", kill_on_drop: false }`
[INFO] [stdout] 6c1da2279fc3bb9dcbd8d739dc053dcf832229f65a7d69b7aa88c1cc5512977a
[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" "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] 32c16078e609616573bd5f6e7eb40f53ad55af45bbcf4bb7405f01efdab9c442
[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" "32c16078e609616573bd5f6e7eb40f53ad55af45bbcf4bb7405f01efdab9c442", kill_on_drop: false }`
[INFO] [stderr]    Compiling nbdkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "32c16078e609616573bd5f6e7eb40f53ad55af45bbcf4bb7405f01efdab9c442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c16078e609616573bd5f6e7eb40f53ad55af45bbcf4bb7405f01efdab9c442", kill_on_drop: false }`
[INFO] [stdout] 32c16078e609616573bd5f6e7eb40f53ad55af45bbcf4bb7405f01efdab9c442
[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" "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] 5475fc33507a1c62d98ce477add8215fb4fd37b084064cae2d569f1a66cf393f
[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" "5475fc33507a1c62d98ce477add8215fb4fd37b084064cae2d569f1a66cf393f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling downcast v0.10.0
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling errno v0.2.5
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling predicates v1.0.4
[INFO] [stderr]    Compiling mockall_derive v0.8.2
[INFO] [stderr]    Compiling mockall v0.8.2
[INFO] [stderr]    Compiling nbdkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 46.01s
[INFO] running `Command { std: "docker" "inspect" "5475fc33507a1c62d98ce477add8215fb4fd37b084064cae2d569f1a66cf393f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5475fc33507a1c62d98ce477add8215fb4fd37b084064cae2d569f1a66cf393f", kill_on_drop: false }`
[INFO] [stdout] 5475fc33507a1c62d98ce477add8215fb4fd37b084064cae2d569f1a66cf393f
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13f0c30158feae54e3701c4001d2c0352e29fff03e739cbf73f24f25948bb17e
[INFO] running `Command { std: "docker" "start" "-a" "13f0c30158feae54e3701c4001d2c0352e29fff03e739cbf73f24f25948bb17e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nbdkit-f380818ec43451bc
[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/bare_bones-77338036eadbadcc
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test pread::eio ... ok
[INFO] [stdout] test open_close ... ok
[INFO] [stdout] test pread::ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/full_featured-1c1a244a23407480
[INFO] [stdout] 
[INFO] [stdout] running 51 tests
[INFO] [stdout] test can_extents::ok ... ok
[INFO] [stdout] test can_extents::eio ... ok
[INFO] [stdout] test cache::ok ... ok
[INFO] [stdout] test cache::eio ... ok
[INFO] [stdout] test can_fast_zero::ok ... ok
[INFO] [stdout] test can_flush::eio ... ok
[INFO] [stdout] test can_flush::ok ... ok
[INFO] [stdout] test can_fua::ok ... ok
[INFO] [stdout] test can_fua::eio ... ok
[INFO] [stdout] test can_multi_conn::eio ... ok
[INFO] [stdout] test can_multi_conn::ok ... ok
[INFO] [stdout] test can_trim::eio ... ok
[INFO] [stdout] test can_trim::ok ... ok
[INFO] [stdout] test description ... ok
[INFO] [stdout] test can_cache::ok ... ok
[INFO] [stdout] test can_write::eio ... ok
[INFO] [stdout] test config_help ... ok
[INFO] [stdout] test extents::extent_error ... ok
[INFO] [stdout] test can_zero::eio ... ok
[INFO] [stdout] test get_ready::ok ... ok
[INFO] [stdout] test config::ok ... ok
[INFO] [stdout] test config_complete::einval ... ok
[INFO] [stdout] test config::einval ... ok
[INFO] [stdout] test longname ... ok
[INFO] [stdout] test magic_config_key ... ok
[INFO] [stdout] test can_cache::eio ... ok
[INFO] [stdout] test dump_plugin::ok ... ok
[INFO] [stdout] test extents::req_one ... ok
[INFO] [stdout] test load::ok ... ok
[INFO] [stdout] test extents::eopnotsupp ... ok
[INFO] [stdout] test flush::eio ... ok
[INFO] [stdout] test name ... ok
[INFO] [stdout] test can_zero::ok ... ok
[INFO] [stdout] test flush::ok ... ok
[INFO] [stdout] test get_ready::einval ... ok
[INFO] [stdout] test trim::ok ... ok
[INFO] [stdout] test can_fast_zero::eio ... ok
[INFO] [stdout] test is_rotational::eio ... ok
[INFO] [stdout] test is_rotational::ok ... ok
[INFO] [stdout] test can_write::ok ... ok
[INFO] [stdout] test preconnect::einval ... ok
[INFO] [stdout] test preconnect::ok ... ok
[INFO] [stdout] test pwrite::eio ... ok
[INFO] [stdout] test thread_model::eio ... ok
[INFO] [stdout] test pwrite::ok ... ok
[INFO] [stdout] test thread_model::ok ... ok
[INFO] [stdout] test trim::eio ... ok
[INFO] [stdout] test config_complete::ok ... ok
[INFO] [stdout] test zero::eio ... ok
[INFO] [stdout] test unload::ok ... ok
[INFO] [stdout] test zero::ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 51 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nbdkit
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - Error::new (line 100) ... ok
[INFO] [stdout] test src/lib.rs - plugin (line 1193) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "13f0c30158feae54e3701c4001d2c0352e29fff03e739cbf73f24f25948bb17e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f0c30158feae54e3701c4001d2c0352e29fff03e739cbf73f24f25948bb17e", kill_on_drop: false }`
[INFO] [stdout] 13f0c30158feae54e3701c4001d2c0352e29fff03e739cbf73f24f25948bb17e