[INFO] fetching crate panic_monitor 0.2.1...
[INFO] testing panic_monitor-0.2.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate panic_monitor 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate panic_monitor 0.2.1 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 panic_monitor 0.2.1
[INFO] finished tweaking crates.io crate panic_monitor 0.2.1
[INFO] tweaked toml for crates.io crate panic_monitor 0.2.1 written to /workspace/builds/worker-4/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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07be944b694dc48363d4e0bcbdb9b0d7c259ab527811e7aff7610aafda8b987f
[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" "07be944b694dc48363d4e0bcbdb9b0d7c259ab527811e7aff7610aafda8b987f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07be944b694dc48363d4e0bcbdb9b0d7c259ab527811e7aff7610aafda8b987f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07be944b694dc48363d4e0bcbdb9b0d7c259ab527811e7aff7610aafda8b987f", kill_on_drop: false }`
[INFO] [stdout] 07be944b694dc48363d4e0bcbdb9b0d7c259ab527811e7aff7610aafda8b987f
[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=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] ac98a6f5c54eac652008621e15c7568cc0541d995578c1999aa3ca5492c801c1
[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" "ac98a6f5c54eac652008621e15c7568cc0541d995578c1999aa3ca5492c801c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling panic_monitor v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "ac98a6f5c54eac652008621e15c7568cc0541d995578c1999aa3ca5492c801c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac98a6f5c54eac652008621e15c7568cc0541d995578c1999aa3ca5492c801c1", kill_on_drop: false }`
[INFO] [stdout] ac98a6f5c54eac652008621e15c7568cc0541d995578c1999aa3ca5492c801c1
[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=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] 645b5b063b7defa15abd3410420db13c25c6bb0826291318bded6be3b11364cc
[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" "645b5b063b7defa15abd3410420db13c25c6bb0826291318bded6be3b11364cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling panic_monitor v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "645b5b063b7defa15abd3410420db13c25c6bb0826291318bded6be3b11364cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "645b5b063b7defa15abd3410420db13c25c6bb0826291318bded6be3b11364cc", kill_on_drop: false }`
[INFO] [stdout] 645b5b063b7defa15abd3410420db13c25c6bb0826291318bded6be3b11364cc
[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=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] 86661b03bb2c3e61f6bd81b25ee3dd38a5c8e2492851ac492eaf2ae3b684eb31
[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" "86661b03bb2c3e61f6bd81b25ee3dd38a5c8e2492851ac492eaf2ae3b684eb31", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/panic_monitor-41c2269190ddfe1c
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-414b6f74337780be
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', tests/test.rs:18:78
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55c5f9c688d0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x55c5f9c688d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55c5f9c688d0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x55c5f9c688d0 - <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] [stderr]    4:     0x55c5f9c8b9fc - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x55c5f9c654a7 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x55c5f9c6afc0 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x55c5f9c6afc0 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x55c5f9c6afc0 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x55c5f9c6ad0c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x55c5f9c41046 - <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call::h1be56655c52af549
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1056
[INFO] [stderr]   11:     0x55c5f9c490e2 - panic_monitor::PanicMonitor::init::{{closure}}::h0d06689b2df44e31
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:120
[INFO] [stderr]   12:     0x55c5f9c6b648 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:573
[INFO] [stderr]   13:     0x55c5f9bff198 - std::panicking::begin_panic::{{closure}}::h950425dea413a1b0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   14:     0x55c5f9c01d78 - std::sys_common::backtrace::__rust_end_short_backtrace::h595da0a703d96c28
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   15:     0x55c5f9bff0c3 - std::panicking::begin_panic::hcd14e9754f72e6ac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   16:     0x55c5f9bfe82e - test::test::{{closure}}::h146fbfb03c7a68c6
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/test.rs:18
[INFO] [stderr]   17:     0x55c5f9c01da9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6dabf58de85cc3f0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   18:     0x55c5f9bf8d36 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h46cd6c5647e6cc3d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   19:     0x55c5f9bfbf79 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h477355e05cda47b4
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   20:     0x55c5f9bff3cd - std::panicking::try::do_call::h949edd7b92429408
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   21:     0x55c5f9bff7bd - __rust_try
[INFO] [stderr]   22:     0x55c5f9bff344 - std::panicking::try::hc6382ea7768b16aa
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   23:     0x55c5f9bfc169 - std::panic::catch_unwind::hbba8b2d31cb81432
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   24:     0x55c5f9bf8b88 - std::thread::Builder::spawn_unchecked::{{closure}}::h674022670ac8dc77
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   25:     0x55c5f9bfc3f8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf21eb1d0b1ecabab
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   26:     0x55c5f9c71e2a - <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:     0x55c5f9c71e2a - <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:     0x55c5f9c71e2a - 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:     0x7f57ae542609 - start_thread
[INFO] [stderr]   30:     0x7f57ae44e103 - clone
[INFO] [stderr]   31:                0x0 - <unknown>
[INFO] [stdout] test test ... ok
[INFO] [stderr]    Doc-tests panic_monitor
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "86661b03bb2c3e61f6bd81b25ee3dd38a5c8e2492851ac492eaf2ae3b684eb31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86661b03bb2c3e61f6bd81b25ee3dd38a5c8e2492851ac492eaf2ae3b684eb31", kill_on_drop: false }`
[INFO] [stdout] 86661b03bb2c3e61f6bd81b25ee3dd38a5c8e2492851ac492eaf2ae3b684eb31
