[INFO] crate rust_gpiozero 0.2.0 is already in cache
[INFO] extracting crate rust_gpiozero 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rust_gpiozero/0.2.0
[INFO] extracting crate rust_gpiozero 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust_gpiozero/0.2.0
[INFO] validating manifest of rust_gpiozero-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust_gpiozero-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rust_gpiozero-0.2.0
[INFO] finished frobbing rust_gpiozero-0.2.0
[INFO] frobbed toml for rust_gpiozero-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rust_gpiozero/0.2.0/Cargo.toml
[INFO] started frobbing rust_gpiozero-0.2.0
[INFO] finished frobbing rust_gpiozero-0.2.0
[INFO] frobbed toml for rust_gpiozero-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust_gpiozero/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing rust_gpiozero-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust_gpiozero/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 0aa9feb634775da6a62bcd2cbe263a6a3b5075bc35c5e9339e4372c59834606c
[INFO] running `"docker" "start" "-a" "0aa9feb634775da6a62bcd2cbe263a6a3b5075bc35c5e9339e4372c59834606c"`
[INFO] [stderr]    Compiling rppal v0.11.3
[INFO] [stderr]    Compiling rust_gpiozero v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `value_to_state`
[INFO] [stderr]   --> src/output_devices.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/input_devices.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     impl_io_device!();
[INFO] [stderr]    |     ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_to_state`
[INFO] [stderr]    --> src/output_devices.rs:20:9
[INFO] [stderr]     |
[INFO] [stderr] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/input_devices.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     impl_io_device!();
[INFO] [stderr]     |     ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `inactive_state`
[INFO] [stderr]    --> src/input_devices.rs:169:5
[INFO] [stderr]     |
[INFO] [stderr] 169 |     inactive_state: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bounce_time`
[INFO] [stderr]    --> src/input_devices.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     bounce_time: Option<f32>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_to_state`
[INFO] [stderr]    --> src/output_devices.rs:20:9
[INFO] [stderr]     |
[INFO] [stderr] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/input_devices.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     impl_io_device!();
[INFO] [stderr]     |     ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `"docker" "inspect" "0aa9feb634775da6a62bcd2cbe263a6a3b5075bc35c5e9339e4372c59834606c"`
[INFO] running `"docker" "rm" "-f" "0aa9feb634775da6a62bcd2cbe263a6a3b5075bc35c5e9339e4372c59834606c"`
[INFO] [stdout] 0aa9feb634775da6a62bcd2cbe263a6a3b5075bc35c5e9339e4372c59834606c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust_gpiozero/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 661f32ade70d9f0d61198e75bebc6dee942e5e422b24d341263951bc5435ea09
[INFO] running `"docker" "start" "-a" "661f32ade70d9f0d61198e75bebc6dee942e5e422b24d341263951bc5435ea09"`
[INFO] [stderr]    Compiling rust_gpiozero v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> examples/servo.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let _ = io::stdin().read(&mut [0u8]).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_to_state`
[INFO] [stderr]   --> src/output_devices.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/input_devices.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     impl_io_device!();
[INFO] [stderr]    |     ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_to_state`
[INFO] [stderr]    --> src/output_devices.rs:20:9
[INFO] [stderr]     |
[INFO] [stderr] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/input_devices.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     impl_io_device!();
[INFO] [stderr]     |     ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `inactive_state`
[INFO] [stderr]    --> src/input_devices.rs:169:5
[INFO] [stderr]     |
[INFO] [stderr] 169 |     inactive_state: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bounce_time`
[INFO] [stderr]    --> src/input_devices.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 170 |     bounce_time: Option<f32>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_to_state`
[INFO] [stderr]    --> src/output_devices.rs:20:9
[INFO] [stderr]     |
[INFO] [stderr] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/input_devices.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     impl_io_device!();
[INFO] [stderr]     |     ------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "661f32ade70d9f0d61198e75bebc6dee942e5e422b24d341263951bc5435ea09"`
[INFO] running `"docker" "rm" "-f" "661f32ade70d9f0d61198e75bebc6dee942e5e422b24d341263951bc5435ea09"`
[INFO] [stdout] 661f32ade70d9f0d61198e75bebc6dee942e5e422b24d341263951bc5435ea09
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rust_gpiozero/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 2de3e93a02e21e718e6f7cb4cbd2db8db9046f03c11b32cfb23c515501813b3b
[INFO] running `"docker" "start" "-a" "2de3e93a02e21e718e6f7cb4cbd2db8db9046f03c11b32cfb23c515501813b3b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_gpiozero-252ba683573191f8
[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]    Doc-tests rust_gpiozero
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 19) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 19) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'UnknownModel', src/output_devices.rs:103:23
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55d236694f3b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55d236694f3b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55d236694f3b - std::sys_common::backtrace::_print::h24f527b44b6cfc06
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55d236694f3b - std::sys_common::backtrace::print::h712608e4347fd64a
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55d236694f3b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55d236694c16 - std::panicking::default_hook::hb29963fb4747e0dd
[INFO] [stdout]                                at src/libstd/panicking.rs:214
[INFO] [stdout]    6:     0x55d2366956ad - std::panicking::rust_panic_with_hook::hd1236c3083de823a
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55d236695232 - std::panicking::continue_panic_fmt::he38ad41d6304a12c
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55d23669517f - std::panicking::begin_panic_fmt::h4b478f1ed53f4521
[INFO] [stdout]                                at src/libstd/panicking.rs:339
[INFO] [stdout]    9:     0x55d2366581e9 - rust_gpiozero::output_devices::OutputDevice::new::hfcbea8b6a4f02949
[INFO] [stdout]                                at src/output_devices.rs:103
[INFO] [stdout]   10:     0x55d2366585cf - rust_gpiozero::output_devices::LED::new::h1b157a8564e5204f
[INFO] [stdout]                                at src/output_devices.rs:291
[INFO] [stdout]   11:     0x55d236657f62 - rust_out::main::h1cf9155cb6204ee7
[INFO] [stdout]   12:     0x55d236658033 - std::rt::lang_start::{{closure}}::h00a7ffc4b255461a
[INFO] [stdout]   13:     0x55d2366950b3 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce
[INFO] [stdout]                                at src/libstd/rt.rs:49
[INFO] [stdout]   14:     0x55d2366950b3 - std::panicking::try::do_call::h9d779bc5e27e3284
[INFO] [stdout]                                at src/libstd/panicking.rs:296
[INFO] [stdout]   15:     0x55d236697b7a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   16:     0x55d236695bbd - std::panicking::try::h4af22d9cb0afa351
[INFO] [stdout]                                at src/libstd/panicking.rs:275
[INFO] [stdout]   17:     0x55d236695bbd - std::panic::catch_unwind::hbb68a9ada87bfb97
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   18:     0x55d236695bbd - std::rt::lang_start_internal::hba9e09d74440ce4d
[INFO] [stdout]                                at src/libstd/rt.rs:48
[INFO] [stdout]   19:     0x55d236658018 - std::rt::lang_start::hb393a69b73b35e9d
[INFO] [stdout]   20:     0x55d236657fdb - main
[INFO] [stdout]   21:     0x7f1e598de2e1 - __libc_start_main
[INFO] [stdout]   22:     0x55d236657b6a - _start
[INFO] [stdout]   23:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 19)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "2de3e93a02e21e718e6f7cb4cbd2db8db9046f03c11b32cfb23c515501813b3b"`
[INFO] running `"docker" "rm" "-f" "2de3e93a02e21e718e6f7cb4cbd2db8db9046f03c11b32cfb23c515501813b3b"`
[INFO] [stdout] 2de3e93a02e21e718e6f7cb4cbd2db8db9046f03c11b32cfb23c515501813b3b