[INFO] fetching crate blackhole 0.17.1...
[INFO] testing blackhole-0.17.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate blackhole 0.17.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate blackhole 0.17.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackhole 0.17.1
[INFO] finished tweaking crates.io crate blackhole 0.17.1
[INFO] tweaked toml for crates.io crate blackhole 0.17.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4601272e549563f3498f9f65af0b97ee73b5136731363bb5dfa446ab48ca53e5
[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" "4601272e549563f3498f9f65af0b97ee73b5136731363bb5dfa446ab48ca53e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4601272e549563f3498f9f65af0b97ee73b5136731363bb5dfa446ab48ca53e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4601272e549563f3498f9f65af0b97ee73b5136731363bb5dfa446ab48ca53e5", kill_on_drop: false }`
[INFO] [stdout] 4601272e549563f3498f9f65af0b97ee73b5136731363bb5dfa446ab48ca53e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a566cc68c7add741a2344e19c629d3a5f50583b97b7a073e8000df0f65ace06
[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" "5a566cc68c7add741a2344e19c629d3a5f50583b97b7a073e8000df0f65ace06", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackhole v0.17.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "5a566cc68c7add741a2344e19c629d3a5f50583b97b7a073e8000df0f65ace06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a566cc68c7add741a2344e19c629d3a5f50583b97b7a073e8000df0f65ace06", kill_on_drop: false }`
[INFO] [stdout] 5a566cc68c7add741a2344e19c629d3a5f50583b97b7a073e8000df0f65ace06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04cf7ad57d80247552ce5b2f035d4ef8b1a6f8a904303af3d91ffe6b513e9f33
[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" "04cf7ad57d80247552ce5b2f035d4ef8b1a6f8a904303af3d91ffe6b513e9f33", kill_on_drop: false }`
[INFO] [stderr]    Compiling blackhole v0.17.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `Command { std: "docker" "inspect" "04cf7ad57d80247552ce5b2f035d4ef8b1a6f8a904303af3d91ffe6b513e9f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04cf7ad57d80247552ce5b2f035d4ef8b1a6f8a904303af3d91ffe6b513e9f33", kill_on_drop: false }`
[INFO] [stdout] 04cf7ad57d80247552ce5b2f035d4ef8b1a6f8a904303af3d91ffe6b513e9f33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 00cfdd7ecd84d2ef48c3ef793a64eb2504dd44f491152da48bd9d71b4dfa10cb
[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" "00cfdd7ecd84d2ef48c3ef793a64eb2504dd44f491152da48bd9d71b4dfa10cb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blackhole-5ef728da792de555
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/root-1e6a9f1d29306f83
[INFO] [stdout] test job::test_one_time ... ok
[INFO] [stdout] test test_crate_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test stressing_blackhole ... ignored
[INFO] [stderr] thread '<unnamed>' panicked at 'Test panicking...', tests/root.rs:28:13
[INFO] [stdout] test test_get_online_processors ... ok
[INFO] [stderr] stack backtrace:
[INFO] [stdout] 0 + 1 = 1
[INFO] [stdout] #2 -> 1
[INFO] [stderr]    0:     0x55e02c565160 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout] 1 + 3 = 4
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x55e02c565160 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55e02c565160 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x55e02c565160 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout] #4 -> 6
[INFO] [stdout] 6 + 5 = 11
[INFO] [stderr]    4:     0x55e02c587fcc - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x55e02c561cb7 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x55e02c5675e0 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x55e02c5675e0 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x55e02c5675e0 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x55e02c56732c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x55e02c567c43 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]   11:     0x55e02c4d7358 - std::panicking::begin_panic::{{closure}}::h8c53e6e1bda22f25
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   12:     0x55e02c4ff338 - std::sys_common::backtrace::__rust_end_short_backtrace::h41c937afbb1107eb
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x55e02c4d7283 - std::panicking::begin_panic::h391f676f8db5afdd
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   14:     0x55e02c4c40bf - <root::Task as blackhole::job::Job>::run::hda2ccee10e28059c
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/root.rs:28
[INFO] [stderr]   15:     0x55e02c4d85fd - blackhole::job::run_to_end::h39928a31dc8dd3eb
[INFO] [stderr]                                at /opt/rustwide/workdir/src/job.rs:22
[INFO] [stderr]   16:     0x55e02c4d8b10 - blackhole::root::spawn_job_runner::{{closure}}::hc9a2f4ed08493ae0
[INFO] [stderr]                                at /opt/rustwide/workdir/src/root.rs:255
[INFO] [stderr]   17:     0x55e02c4ff3ee - std::sys_common::backtrace::__rust_begin_short_backtrace::h636a269a6d4f7a25
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   18:     0x55e02c4d6f21 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h8e6144081d53c738
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   19:     0x55e02c4d1c91 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he08e2dd98b3bf0ad
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   20:     0x55e02c4d7a8c - std::panicking::try::do_call::h9be4f8a8135c11dc
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   21:     0x55e02c4d890d - __rust_try
[INFO] [stderr]   22:     0x55e02c4d7723 - std::panicking::try::hf924b5873f8aada6
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   23:     0x55e02c4d47d1 - std::panic::catch_unwind::h61b811c5de8e460c
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   24:     0x55e02c4d641d - std::thread::Builder::spawn_unchecked::{{closure}}::h15dd50f0fef97133
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   25:     0x55e02c4c5f8e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h0ae16a300fc5f8a5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   26:     0x55e02c56e3fa - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   27:     0x55e02c56e3fa - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   28:     0x55e02c56e3fa - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   29:     0x7f926bb6d609 - start_thread
[INFO] [stderr]   30:     0x7f926ba79103 - clone
[INFO] [stderr]   31:                0x0 - <unknown>
[INFO] [stdout] #2 -> 15
[INFO] [stdout] 15 + 11 = 26
[INFO] [stdout] #4 -> 36
[INFO] [stdout] #10 -> 36
[INFO] [stdout] 36 + 9 = 45
[INFO] [stdout] #6 -> 53
[INFO] [stdout] #8 -> 53
[INFO] [stdout] 53 + 7 = 60
[INFO] [stdout] #12 -> 66
[INFO] [stdout] #6 -> 66
[INFO] [stdout] #10 -> 66
[INFO] [stderr]    Doc-tests blackhole
[INFO] [stdout] #8 -> 66
[INFO] [stdout] test tests ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - get_online_processors (line 158) ... ok
[INFO] [stdout] test src/job.rs - job::OneTime (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... 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" "00cfdd7ecd84d2ef48c3ef793a64eb2504dd44f491152da48bd9d71b4dfa10cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00cfdd7ecd84d2ef48c3ef793a64eb2504dd44f491152da48bd9d71b4dfa10cb", kill_on_drop: false }`
[INFO] [stdout] 00cfdd7ecd84d2ef48c3ef793a64eb2504dd44f491152da48bd9d71b4dfa10cb
