[INFO] fetching crate spawner 0.3.2...
[INFO] testing spawner-0.3.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate spawner 0.3.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate spawner 0.3.2 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 spawner 0.3.2
[INFO] finished tweaking crates.io crate spawner 0.3.2
[INFO] tweaked toml for crates.io crate spawner 0.3.2 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4d7e5dc0c406a445d10d4a482c9d32a63cb9c2f32d137e2ed510d87fcac313d
[INFO] running `Command { std: "docker" "start" "-a" "c4d7e5dc0c406a445d10d4a482c9d32a63cb9c2f32d137e2ed510d87fcac313d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4d7e5dc0c406a445d10d4a482c9d32a63cb9c2f32d137e2ed510d87fcac313d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4d7e5dc0c406a445d10d4a482c9d32a63cb9c2f32d137e2ed510d87fcac313d", kill_on_drop: false }`
[INFO] [stdout] c4d7e5dc0c406a445d10d4a482c9d32a63cb9c2f32d137e2ed510d87fcac313d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 84816adea584b47f7b3303dbae9716e8efddef6d55fb3871d56eea02a0bc809d
[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" "84816adea584b47f7b3303dbae9716e8efddef6d55fb3871d56eea02a0bc809d", kill_on_drop: false }`
[INFO] [stderr]    Compiling spawner v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "84816adea584b47f7b3303dbae9716e8efddef6d55fb3871d56eea02a0bc809d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84816adea584b47f7b3303dbae9716e8efddef6d55fb3871d56eea02a0bc809d", kill_on_drop: false }`
[INFO] [stdout] 84816adea584b47f7b3303dbae9716e8efddef6d55fb3871d56eea02a0bc809d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 73cbe31999a47b280f201c98e9ca61ecc52b0dc9a32f4515104154c25a6c148e
[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" "73cbe31999a47b280f201c98e9ca61ecc52b0dc9a32f4515104154c25a6c148e", kill_on_drop: false }`
[INFO] [stderr]    Compiling spawner v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:63:46
[INFO] [stdout]    |
[INFO] [stdout] 63 |         use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:67:38
[INFO] [stdout]    |
[INFO] [stdout] 67 |         static ACTIVE: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "73cbe31999a47b280f201c98e9ca61ecc52b0dc9a32f4515104154c25a6c148e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73cbe31999a47b280f201c98e9ca61ecc52b0dc9a32f4515104154c25a6c148e", kill_on_drop: false }`
[INFO] [stdout] 73cbe31999a47b280f201c98e9ca61ecc52b0dc9a32f4515104154c25a6c148e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d6349f7f0fa11b3dbc185b2caff7d739a5ed59818af1d827732929fd763a6a85
[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" "d6349f7f0fa11b3dbc185b2caff7d739a5ed59818af1d827732929fd763a6a85", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> src/lib.rs:63:46
[INFO] [stderr]    |
[INFO] [stderr] 63 |         use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> src/lib.rs:67:38
[INFO] [stderr]    |
[INFO] [stderr] 67 |         static ACTIVE: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/spawner-633b623b9c4f21af
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr] thread '<unnamed>' panicked at 'explicit panic', src/lib.rs:113:45
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5595c2419a50 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x5595c2419a50 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5595c2419a50 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x5595c2419a50 - <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:     0x5595c243c89c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x5595c24166d7 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x5595c241bed0 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x5595c241bed0 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x5595c241bed0 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x5595c241bc1c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x5595c241c533 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]   11:     0x5595c23bf268 - std::panicking::begin_panic::{{closure}}::h1b0d98308df81b4c
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   12:     0x5595c23c00e8 - std::sys_common::backtrace::__rust_end_short_backtrace::h5b0b12e013d7e60a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x5595c23bf193 - std::panicking::begin_panic::h21977ae34fabadb8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   14:     0x5595c23c18d9 - spawner::tests::failing_thread::{{closure}}::hfa56d7f40c94de5d
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:113
[INFO] [stderr]   15:     0x5595c23c0149 - std::sys_common::backtrace::__rust_begin_short_backtrace::h606974b07d5ec3d5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   16:     0x5595c23b8ae6 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6b2b239bf65565dc
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   17:     0x5595c23c0089 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf47c6e2e9d5998d0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   18:     0x5595c23bf4ad - std::panicking::try::do_call::hf2f5102abf9d4821
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   19:     0x5595c23bf82d - __rust_try
[INFO] [stderr]   20:     0x5595c23bf334 - std::panicking::try::hcbd72ac95eea9520
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   21:     0x5595c23c0299 - std::panic::catch_unwind::h8e31ea91d05ba2a0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   22:     0x5595c23b8928 - std::thread::Builder::spawn_unchecked::{{closure}}::hb6116597cc01a621
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   23:     0x5595c23bb328 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hcfadfbdadf0e510e
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   24:     0x5595c2422cea - <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]   25:     0x5595c2422cea - <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]   26:     0x5595c2422cea - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   27:     0x7f0322310609 - start_thread
[INFO] [stderr]   28:     0x7f032221c103 - clone
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stdout] test tests::failing_thread ... ok
[INFO] [stdout] test tests::spawn_some_threads ... 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 spawner
[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" "d6349f7f0fa11b3dbc185b2caff7d739a5ed59818af1d827732929fd763a6a85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6349f7f0fa11b3dbc185b2caff7d739a5ed59818af1d827732929fd763a6a85", kill_on_drop: false }`
[INFO] [stdout] d6349f7f0fa11b3dbc185b2caff7d739a5ed59818af1d827732929fd763a6a85
