[INFO] fetching crate sx1509 0.2.0...
[INFO] testing sx1509-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate sx1509 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sx1509 0.2.0 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 sx1509 0.2.0
[INFO] finished tweaking crates.io crate sx1509 0.2.0
[INFO] tweaked toml for crates.io crate sx1509 0.2.0 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 842e490ca29efa400712b89afd01d8ec8a2b6ead1aa75f24b43c029ec43b073c
[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" "842e490ca29efa400712b89afd01d8ec8a2b6ead1aa75f24b43c029ec43b073c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "842e490ca29efa400712b89afd01d8ec8a2b6ead1aa75f24b43c029ec43b073c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842e490ca29efa400712b89afd01d8ec8a2b6ead1aa75f24b43c029ec43b073c", kill_on_drop: false }`
[INFO] [stdout] 842e490ca29efa400712b89afd01d8ec8a2b6ead1aa75f24b43c029ec43b073c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 28aef31ad64f2eb8a148a4e1ec94363ea5ae6c85d522aa426b82cb595c12592b
[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" "28aef31ad64f2eb8a148a4e1ec94363ea5ae6c85d522aa426b82cb595c12592b", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling sx1509 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "28aef31ad64f2eb8a148a4e1ec94363ea5ae6c85d522aa426b82cb595c12592b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28aef31ad64f2eb8a148a4e1ec94363ea5ae6c85d522aa426b82cb595c12592b", kill_on_drop: false }`
[INFO] [stdout] 28aef31ad64f2eb8a148a4e1ec94363ea5ae6c85d522aa426b82cb595c12592b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 4491563d8528ddb62a9afecb1d80f56c383acd3372ea42153097af061bceaaa8
[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" "4491563d8528ddb62a9afecb1d80f56c383acd3372ea42153097af061bceaaa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling sx1509 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "4491563d8528ddb62a9afecb1d80f56c383acd3372ea42153097af061bceaaa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4491563d8528ddb62a9afecb1d80f56c383acd3372ea42153097af061bceaaa8", kill_on_drop: false }`
[INFO] [stdout] 4491563d8528ddb62a9afecb1d80f56c383acd3372ea42153097af061bceaaa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 68a7e2056c524f2fcd6c889cc379541f328dc5a477116913a24ce8523fd894b5
[INFO] running `Command { std: "docker" "start" "-a" "68a7e2056c524f2fcd6c889cc379541f328dc5a477116913a24ce8523fd894b5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sx1509-59b6c921518156c9
[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 sx1509
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 36) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 43) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 74) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 58) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 36) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `metro_m0`
[INFO] [stdout]  --> src/lib.rs:36:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate metro_m0 as hal;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 43) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `hal`
[INFO] [stdout]  --> src/lib.rs:44:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut i2c = hal::I2CMaster3::new(
[INFO] [stdout]   |               ^^^ use of undeclared type or module `hal`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Sercom3Pad0`
[INFO] [stdout]   --> src/lib.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Sercom3Pad0::Pa22(pins.pa22.into_function_c(&mut pins.port)),
[INFO] [stdout]    |     ^^^^^^^^^^^ use of undeclared type or module `Sercom3Pad0`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Sercom3Pad1`
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Sercom3Pad1::Pa23(pins.pa23.into_function_c(&mut pins.port)),
[INFO] [stdout]    |     ^^^^^^^^^^^ use of undeclared type or module `Sercom3Pad1`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `clocks` in this scope
[INFO] [stdout]  --> src/lib.rs:45:6
[INFO] [stdout]   |
[INFO] [stdout] 4 |     &clocks,
[INFO] [stdout]   |      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `peripherals` in this scope
[INFO] [stdout]  --> src/lib.rs:47:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     peripherals.SERCOM3,
[INFO] [stdout]   |     ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `peripherals` in this scope
[INFO] [stdout]  --> src/lib.rs:48:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     &mut peripherals.PM,
[INFO] [stdout]   |          ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `peripherals` in this scope
[INFO] [stdout]  --> src/lib.rs:49:10
[INFO] [stdout]   |
[INFO] [stdout] 8 |     &mut peripherals.GCLK,
[INFO] [stdout]   |          ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `pins` in this scope
[INFO] [stdout]   --> src/lib.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Sercom3Pad0::Pa22(pins.pa22.into_function_c(&mut pins.port)),
[INFO] [stdout]    |                       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `pins` in this scope
[INFO] [stdout]   --> src/lib.rs:51:54
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Sercom3Pad0::Pa22(pins.pa22.into_function_c(&mut pins.port)),
[INFO] [stdout]    |                                                      ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `pins` in this scope
[INFO] [stdout]   --> src/lib.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Sercom3Pad1::Pa23(pins.pa23.into_function_c(&mut pins.port)),
[INFO] [stdout]    |                       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `pins` in this scope
[INFO] [stdout]   --> src/lib.rs:52:54
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Sercom3Pad1::Pa23(pins.pa23.into_function_c(&mut pins.port)),
[INFO] [stdout]    |                                                      ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `khz` found for type `{integer}` in the current scope
[INFO] [stdout]  --> src/lib.rs:46:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     400.khz(),
[INFO] [stdout]   |         ^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 74) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `expander` in this scope
[INFO] [stdout]  --> src/lib.rs:75:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut owned = expander.take(i2c);
[INFO] [stdout]   |                 ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]  --> src/lib.rs:75:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut owned = expander.take(i2c);
[INFO] [stdout]   |                               ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]   --> src/lib.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 2  | / fn main() {
[INFO] [stdout] 3  | | let mut owned = expander.take(i2c);
[INFO] [stdout] 4  | |
[INFO] [stdout] 5  | | // Now you can borrow and perform the IO when you are ready:
[INFO] [stdout] 6  | | let pins = owned.borrow().get_bank_a_data()?;
[INFO] [stdout]    | |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | let (expander, i2c) = owned.release();
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 58) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]  --> src/lib.rs:59:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut expander = sx1509::Sx1509::new(&mut i2c, sx1509::DEFAULT_ADDRESS);
[INFO] [stdout]   |                                             ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]  --> src/lib.rs:60:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | expander.borrow(&mut i2c).software_reset()?;
[INFO] [stdout]   |                      ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]  --> src/lib.rs:61:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | expander.borrow(&mut i2c).set_bank_a_direction(0)?;
[INFO] [stdout]   |                      ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]  --> src/lib.rs:63:33
[INFO] [stdout]   |
[INFO] [stdout] 8 | let pins = expander.borrow(&mut i2c).get_bank_a_data()?;
[INFO] [stdout]   |                                 ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]  --> src/lib.rs:60:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / fn main() {
[INFO] [stdout] 4 | | let mut expander = sx1509::Sx1509::new(&mut i2c, sx1509::DEFAULT_ADDRESS);
[INFO] [stdout] 5 | | expander.borrow(&mut i2c).software_reset()?;
[INFO] [stdout]   | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   | | |
[INFO] [stdout]   | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 6 | | expander.borrow(&mut i2c).set_bank_a_direction(0)?;
[INFO] [stdout] 7 | | // read the pins from bank a
[INFO] [stdout] 8 | | let pins = expander.borrow(&mut i2c).get_bank_a_data()?;
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]  --> src/lib.rs:61:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / fn main() {
[INFO] [stdout] 4 | | let mut expander = sx1509::Sx1509::new(&mut i2c, sx1509::DEFAULT_ADDRESS);
[INFO] [stdout] 5 | | expander.borrow(&mut i2c).software_reset()?;
[INFO] [stdout] 6 | | expander.borrow(&mut i2c).set_bank_a_direction(0)?;
[INFO] [stdout]   | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   | | |
[INFO] [stdout]   | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 7 | | // read the pins from bank a
[INFO] [stdout] 8 | | let pins = expander.borrow(&mut i2c).get_bank_a_data()?;
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stdout]  --> src/lib.rs:63:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | / fn main() {
[INFO] [stdout] 4 | | let mut expander = sx1509::Sx1509::new(&mut i2c, sx1509::DEFAULT_ADDRESS);
[INFO] [stdout] 5 | | expander.borrow(&mut i2c).software_reset()?;
[INFO] [stdout] 6 | | expander.borrow(&mut i2c).set_bank_a_direction(0)?;
[INFO] [stdout] 7 | | // read the pins from bank a
[INFO] [stdout] 8 | | let pins = expander.borrow(&mut i2c).get_bank_a_data()?;
[INFO] [stdout]   | |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 36)
[INFO] [stdout]     src/lib.rs - (line 43)
[INFO] [stdout]     src/lib.rs - (line 58)
[INFO] [stdout]     src/lib.rs - (line 74)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "68a7e2056c524f2fcd6c889cc379541f328dc5a477116913a24ce8523fd894b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68a7e2056c524f2fcd6c889cc379541f328dc5a477116913a24ce8523fd894b5", kill_on_drop: false }`
[INFO] [stdout] 68a7e2056c524f2fcd6c889cc379541f328dc5a477116913a24ce8523fd894b5
