[INFO] fetching crate segment-display 0.1.0...
[INFO] testing segment-display-0.1.0 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate segment-display 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate segment-display 0.1.0
[INFO] finished tweaking crates.io crate segment-display 0.1.0
[INFO] tweaked toml for crates.io crate segment-display 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate segment-display 0.1.0 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3b6da00e92dfec6658203c8d2b03f8c90f39422589b639c0cf27e8e0c6e9c10
[INFO] running `Command { std: "docker" "start" "-a" "e3b6da00e92dfec6658203c8d2b03f8c90f39422589b639c0cf27e8e0c6e9c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3b6da00e92dfec6658203c8d2b03f8c90f39422589b639c0cf27e8e0c6e9c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b6da00e92dfec6658203c8d2b03f8c90f39422589b639c0cf27e8e0c6e9c10", kill_on_drop: false }`
[INFO] [stdout] e3b6da00e92dfec6658203c8d2b03f8c90f39422589b639c0cf27e8e0c6e9c10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c537b0ed313812597d1575e934e4994cfd31e8a32245a29a1355e94f4f585fbc
[INFO] running `Command { std: "docker" "start" "-a" "c537b0ed313812597d1575e934e4994cfd31e8a32245a29a1355e94f4f585fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling segment-display v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]   --> src/lib.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 | use embedded_hal::digital::OutputPin;
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]   --> src/lib.rs:80:10
[INFO] [stdout]    |
[INFO] [stdout] 80 |     PIN: OutputPin,
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.latch_pin.set_low();
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |         self.latch_pin.set_high();
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |         self.latch_pin.set_low();
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.latch_pin.set_high();
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "c537b0ed313812597d1575e934e4994cfd31e8a32245a29a1355e94f4f585fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c537b0ed313812597d1575e934e4994cfd31e8a32245a29a1355e94f4f585fbc", kill_on_drop: false }`
[INFO] [stdout] c537b0ed313812597d1575e934e4994cfd31e8a32245a29a1355e94f4f585fbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc5d0870da0a96ea26618764b6fa9bb5f029a2f8e1aeb678439e6da8935fce48
[INFO] running `Command { std: "docker" "start" "-a" "cc5d0870da0a96ea26618764b6fa9bb5f029a2f8e1aeb678439e6da8935fce48", kill_on_drop: false }`
[INFO] [stderr]    Compiling segment-display v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]   --> src/lib.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 | use embedded_hal::digital::OutputPin;
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]   --> src/lib.rs:80:10
[INFO] [stdout]    |
[INFO] [stdout] 80 |     PIN: OutputPin,
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.latch_pin.set_low();
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |         self.latch_pin.set_high();
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |         self.latch_pin.set_low();
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.latch_pin.set_high();
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]   --> src/lib.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 | use embedded_hal::digital::OutputPin;
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]   --> src/lib.rs:80:10
[INFO] [stdout]    |
[INFO] [stdout] 80 |     PIN: OutputPin,
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |         self.latch_pin.set_low();
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |         self.latch_pin.set_high();
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |         self.latch_pin.set_low();
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stdout]    --> src/lib.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.latch_pin.set_high();
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "cc5d0870da0a96ea26618764b6fa9bb5f029a2f8e1aeb678439e6da8935fce48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc5d0870da0a96ea26618764b6fa9bb5f029a2f8e1aeb678439e6da8935fce48", kill_on_drop: false }`
[INFO] [stdout] cc5d0870da0a96ea26618764b6fa9bb5f029a2f8e1aeb678439e6da8935fce48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0cbd6bed8d60e4ceccaadb9cbedb4fa47a92a073d1a521c6b28e516037aba48f
[INFO] running `Command { std: "docker" "start" "-a" "0cbd6bed8d60e4ceccaadb9cbedb4fa47a92a073d1a521c6b28e516037aba48f", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:68:28
[INFO] [stderr]    |
[INFO] [stderr] 68 | use embedded_hal::digital::OutputPin;
[INFO] [stderr]    |                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `embedded_hal::digital::OutputPin`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]   --> src/lib.rs:80:10
[INFO] [stderr]    |
[INFO] [stderr] 80 |     PIN: OutputPin,
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]    --> src/lib.rs:109:24
[INFO] [stderr]     |
[INFO] [stderr] 109 |         self.latch_pin.set_low();
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]    --> src/lib.rs:111:24
[INFO] [stderr]     |
[INFO] [stderr] 111 |         self.latch_pin.set_high();
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_low`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]    --> src/lib.rs:129:24
[INFO] [stderr]     |
[INFO] [stderr] 129 |         self.latch_pin.set_low();
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `embedded_hal::digital::OutputPin::set_high`: Deprecated because the methods cannot return errors. Users should use the traits in digital::v2.
[INFO] [stderr]    --> src/lib.rs:132:24
[INFO] [stderr]     |
[INFO] [stderr] 132 |         self.latch_pin.set_high();
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `segment-display` (lib) generated 6 warnings
[INFO] [stderr] warning: `segment-display` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/segment_display-2a33322e0eec6675)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests segment_display
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 10) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `cortex_m`
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate cortex_m;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `cortex_m_rt`
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate cortex_m_rt;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `nucleo_f401re`
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate nucleo_f401re as board;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `panic_semihosting`
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate panic_semihosting;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `mhz` found for type `{integer}` in the current scope
[INFO] [stdout]   --> src/lib.rs:39:36
[INFO] [stdout]    |
[INFO] [stdout] 39 |    let clocks = rcc.cfgr.sysclk(84.mhz()).freeze();
[INFO] [stdout]    |                                    ^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `hz` found for type `{integer}` in the current scope
[INFO] [stdout]   --> src/lib.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |        4_000_000.hz(),
[INFO] [stdout]    |                  ^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "0cbd6bed8d60e4ceccaadb9cbedb4fa47a92a073d1a521c6b28e516037aba48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cbd6bed8d60e4ceccaadb9cbedb4fa47a92a073d1a521c6b28e516037aba48f", kill_on_drop: false }`
[INFO] [stdout] 0cbd6bed8d60e4ceccaadb9cbedb4fa47a92a073d1a521c6b28e516037aba48f
