[INFO] fetching crate rtc-hal 0.4.0...
[INFO] testing rtc-hal-0.4.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate rtc-hal 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rtc-hal 0.4.0
[INFO] finished tweaking crates.io crate rtc-hal 0.4.0
[INFO] tweaked toml for crates.io crate rtc-hal 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rtc-hal 0.4.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rtc-hal 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802
[INFO] running `Command { std: "docker" "start" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtc-hal v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtc-hal v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/rtc-hal/e5e020f629691816/out/rtc_hal-e5e020f629691816)
[INFO] [stdout] running 45 tests
[INFO] [stderr]    Doc-tests rtc_hal
[INFO] [stdout] test bcd::tests::test_from_decimal ... ok
[INFO] [stdout] test bcd::tests::test_bcd_round_trip ... ok
[INFO] [stdout] test datetime::tests::test_all_setters_preserve_state_on_error ... ok
[INFO] [stdout] test bcd::tests::test_to_decimal ... ok
[INFO] [stdout] test datetime::tests::test_boundary_values ... ok
[INFO] [stdout] test datetime::tests::test_calculate_weekday_known_dates ... ok
[INFO] [stdout] test datetime::tests::test_datetime_error_trait ... ok
[INFO] [stdout] test bcd::tests::test_bcd_edge_cases ... ok
[INFO] [stdout] test datetime::tests::test_days_in_month ... ok
[INFO] [stdout] test datetime::tests::test_all_month_max_days ... ok
[INFO] [stdout] test datetime::tests::test_invalid_minute ... ok
[INFO] [stdout] test datetime::tests::test_invalid_hour ... ok
[INFO] [stdout] test datetime::tests::test_invalid_second ... ok
[INFO] [stdout] test datetime::tests::test_invalid_year ... ok
[INFO] [stdout] test datetime::tests::test_is_leap_year ... ok
[INFO] [stdout] test datetime::tests::test_february_edge_cases ... ok
[INFO] [stdout] test datetime::tests::test_display_datetime_error ... ok
[INFO] [stdout] test datetime::tests::test_set_minute ... ok
[INFO] [stdout] test datetime::tests::test_leap_year_edge_cases_in_setters ... ok
[INFO] [stdout] test datetime::tests::test_leap_year_february_29 ... ok
[INFO] [stdout] test datetime::tests::test_set_second ... ok
[INFO] [stdout] test datetime::tests::test_set_day_of_month ... ok
[INFO] [stdout] test datetime::tests::test_invalid_day ... ok
[INFO] [stdout] test datetime::tests::test_valid_datetime_creation ... ok
[INFO] [stdout] test datetime::tests::test_month_day_validation_in_setters ... ok
[INFO] [stdout] test datetime::tests::test_invalid_month ... ok
[INFO] [stdout] test datetime::tests::test_weekday_as_str ... ok
[INFO] [stdout] test error::tests::test_error_kind_equality ... ok
[INFO] [stdout] test datetime::tests::test_weekday_calculation ... ok
[INFO] [stdout] test error::tests::test_error_kind_returns_self ... ok
[INFO] [stdout] test square_wave::tests::test_custom_frequency_edge_cases ... ok
[INFO] [stdout] test square_wave::tests::test_custom_with_standard_values ... ok
[INFO] [stdout] test datetime::tests::test_weekday_from_number ... ok
[INFO] [stdout] test square_wave::tests::test_round_trip_conversion ... ok
[INFO] [stdout] test datetime::tests::test_weekday_to_number ... ok
[INFO] [stdout] test square_wave::tests::test_to_hz_standard_frequencies ... ok
[INFO] [stdout] test square_wave::tests::test_frequency_ordering ... ok
[INFO] [stdout] test error::tests::test_error_kind_display_messages ... ok
[INFO] [stdout] test error::tests::test_error_kind_mapping ... ok
[INFO] [stdout] test square_wave::tests::test_from_hz_custom_frequencies ... ok
[INFO] [stdout] test square_wave::tests::test_from_hz_standard_frequencies ... ok
[INFO] [stdout] test datetime::tests::test_setter_interdependency_edge_cases ... ok
[INFO] [stdout] test square_wave::tests::test_standard_frequencies_are_powers_of_two ... ok
[INFO] [stdout] test datetime::tests::test_setters_with_validation ... ok
[INFO] [stdout] test square_wave::tests::test_to_hz_custom_frequencies ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 45 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/rtc.rs - rtc (line 26) ... ignored
[INFO] [stdout] test src/rtc.rs - rtc::Rtc (line 49) ... ignored
[INFO] [stdout] test src/alarm.rs - alarm (line 32) ... FAILED
[INFO] [stdout] test src/alarm.rs - alarm::AlarmBuilder::at_hms (line 185) ... FAILED
[INFO] [stdout] test src/alarm.rs - alarm::AlarmBuilder::at (line 163) ... FAILED
[INFO] [stdout] test src/alarm.rs - alarm (line 21) ... FAILED
[INFO] [stdout] test src/alarm.rs - alarm (line 13) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/alarm.rs - alarm (line 32) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/alarm.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_32_0() {
[INFO] [stdout]    |                                      ------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 38 |     .build()?;
[INFO] [stdout]    |             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 33 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_32_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 34 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] ...
[INFO] [stdout] 38 |     .build()?;
[INFO] [stdout] 39 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/alarm.rs - alarm::AlarmBuilder::at_hms (line 185) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/alarm.rs:188:52
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_185_0() {
[INFO] [stdout]     |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 187 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] 188 | let alarm = AlarmBuilder::at_hms(7, 30, 15).build()?;
[INFO] [stdout]     |                                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 186 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_185_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 187 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] 188 | let alarm = AlarmBuilder::at_hms(7, 30, 15).build()?;
[INFO] [stdout] 189 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/alarm.rs - alarm::AlarmBuilder::at (line 163) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/alarm.rs:166:44
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_163_0() {
[INFO] [stdout]     |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 165 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] 166 | let alarm = AlarmBuilder::at(7, 30).build()?;
[INFO] [stdout]     |                                            ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]     |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]     |
[INFO] [stdout] 164 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_163_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 165 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] 166 | let alarm = AlarmBuilder::at(7, 30).build()?;
[INFO] [stdout] 167 +     Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/alarm.rs - alarm (line 21) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/alarm.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_21_0() {
[INFO] [stdout]    |                                      ------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 28 |     .build()?;
[INFO] [stdout]    |             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 22 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_21_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 23 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] ...
[INFO] [stdout] 28 |     .build()?;
[INFO] [stdout] 29 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/alarm.rs - alarm (line 13) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/alarm.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_13_0() {
[INFO] [stdout]    |                                      ------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 17 | let alarm = AlarmBuilder::at(7, 30).build()?;
[INFO] [stdout]    |                                            ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 14 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_alarm_rs_13_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 15 | use rtc_hal::alarm::AlarmBuilder;
[INFO] [stdout] 16 |
[INFO] [stdout] 17 | let alarm = AlarmBuilder::at(7, 30).build()?;
[INFO] [stdout] 18 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/alarm.rs - alarm (line 13)
[INFO] [stdout]     src/alarm.rs - alarm (line 21)
[INFO] [stdout]     src/alarm.rs - alarm (line 32)
[INFO] [stdout]     src/alarm.rs - alarm::AlarmBuilder::at (line 163)
[INFO] [stdout]     src/alarm.rs - alarm::AlarmBuilder::at_hms (line 185)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 5 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.20s; merged doctests compilation took 0.06s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802", kill_on_drop: false }`
[INFO] [stdout] 7c5339a97dc6d9595180e65fbf9ed5aee0e8174fa0e19f815c605532364f0802
