[INFO] fetching crate umbral-rs 0.0.4...
[INFO] testing umbral-rs-0.0.4 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate umbral-rs 0.0.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate umbral-rs 0.0.4
[INFO] finished tweaking crates.io crate umbral-rs 0.0.4
[INFO] tweaked toml for crates.io crate umbral-rs 0.0.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate umbral-rs 0.0.4 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate umbral-rs 0.0.4 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opaque-debug v0.3.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.9
[INFO] [stderr]   Downloaded keccak v0.1.4
[INFO] [stderr]   Downloaded digest v0.9.0
[INFO] [stderr]   Downloaded hmac v0.8.1
[INFO] [stderr]   Downloaded num-integer v0.1.45
[INFO] [stderr]   Downloaded block-buffer v0.9.0
[INFO] [stderr]   Downloaded modinverse v0.1.1
[INFO] [stderr]   Downloaded crypto-mac v0.8.0
[INFO] [stderr]   Downloaded inout v0.1.3
[INFO] [stderr]   Downloaded block-padding v0.2.1
[INFO] [stderr]   Downloaded hex-literal v0.3.4
[INFO] [stderr]   Downloaded pkg-config v0.3.27
[INFO] [stderr]   Downloaded quote v1.0.33
[INFO] [stderr]   Downloaded typenum v1.17.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded bitflags v2.4.0
[INFO] [stderr]   Downloaded blake2 v0.9.2
[INFO] [stderr]   Downloaded cc v1.0.83
[INFO] [stderr]   Downloaded num-traits v0.2.16
[INFO] [stderr]   Downloaded sha2 v0.9.9
[INFO] [stderr]   Downloaded hkdf v0.9.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.93
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded openssl v0.10.57
[INFO] [stderr]   Downloaded libc v0.2.148
[INFO] [stderr]   Downloaded sha3 v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069
[INFO] running `Command { std: "docker" "start" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", 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" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", 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" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling zeroize v1.6.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling openssl v0.10.57
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling keccak v0.1.4
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling modinverse v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.93
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling aead v0.5.2
[INFO] [stderr]    Compiling poly1305 v0.8.0
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling hkdf v0.9.0
[INFO] [stderr]    Compiling chacha20 v0.9.1
[INFO] [stderr]    Compiling chacha20poly1305 v0.10.1
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling umbral-rs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "unstable", feature(test))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/internal/curve.rs:476:26
[INFO] [stdout]     |
[INFO] [stdout] 476 |         let _ = self.bn().clone();
[INFO] [stdout]     |                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `BigNumRef` does not implement `Clone`, so calling `clone` on `&BigNumRef` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 476 -         let _ = self.bn().clone();
[INFO] [stdout] 476 +         let _ = self.bn();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `BigNumRef`, implement `Clone` for it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/foreign-types-0.3.2/src/lib.rs:299:1
[INFO] [stdout]     |
[INFO] [stdout] 299 +         #[derive(Clone)]
[INFO] [stdout] 300 |         pub struct $borrowed($crate::Opaque);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.17s
[INFO] running `Command { std: "docker" "inspect" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", 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" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling umbral-rs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "unstable", feature(test))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/internal/curve.rs:476:26
[INFO] [stdout]     |
[INFO] [stdout] 476 |         let _ = self.bn().clone();
[INFO] [stdout]     |                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `BigNumRef` does not implement `Clone`, so calling `clone` on `&BigNumRef` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 476 -         let _ = self.bn().clone();
[INFO] [stdout] 476 +         let _ = self.bn();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `BigNumRef`, implement `Clone` for it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/foreign-types-0.3.2/src/lib.rs:299:1
[INFO] [stdout]     |
[INFO] [stdout] 299 +         #[derive(Clone)]
[INFO] [stdout] 300 |         pub struct $borrowed($crate::Opaque);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "unstable", feature(test))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/internal/curve.rs:476:26
[INFO] [stdout]     |
[INFO] [stdout] 476 |         let _ = self.bn().clone();
[INFO] [stdout]     |                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `BigNumRef` does not implement `Clone`, so calling `clone` on `&BigNumRef` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 476 -         let _ = self.bn().clone();
[INFO] [stdout] 476 +         let _ = self.bn();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `BigNumRef`, implement `Clone` for it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/foreign-types-0.3.2/src/lib.rs:299:1
[INFO] [stdout]     |
[INFO] [stdout] 299 +         #[derive(Clone)]
[INFO] [stdout] 300 |         pub struct $borrowed($crate::Opaque);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", 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" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stderr]  --> src/lib.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "unstable", feature(test))]
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]   |
[INFO] [stderr]   = note: no expected values for `feature`
[INFO] [stderr]   = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/internal/curve.rs:476:26
[INFO] [stderr]     |
[INFO] [stderr] 476 |         let _ = self.bn().clone();
[INFO] [stderr]     |                          ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `BigNumRef` does not implement `Clone`, so calling `clone` on `&BigNumRef` copies the reference, which does not do anything and can be removed
[INFO] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr] 476 -         let _ = self.bn().clone();
[INFO] [stderr] 476 +         let _ = self.bn();
[INFO] [stderr]     |
[INFO] [stderr] help: if you meant to clone `BigNumRef`, implement `Clone` for it
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/foreign-types-0.3.2/src/lib.rs:299:1
[INFO] [stderr]     |
[INFO] [stderr] 299 +         #[derive(Clone)]
[INFO] [stderr] 300 |         pub struct $borrowed($crate::Opaque);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `umbral-rs` (lib) generated 2 warnings (run `cargo fix --lib -p umbral-rs` to apply 1 suggestion)
[INFO] [stderr] warning: `umbral-rs` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/umbral_rs-c8d4b6be04f06f07)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test internal::keyredistrib::tests::test_inv_mod ... ok
[INFO] [stdout] test pre::tests::hash_to_bn ... ok
[INFO] [stdout] test pre::tests::curve_bn ... ok
[INFO] [stdout] test pre::tests::poly_eval_test ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_secret_sharing ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_create_shares ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_compute_polynomial ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_privatekey_to_bn ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_print_private_key ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_random_coefficients ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_swap_keypairs ... ok
[INFO] [stdout] test internal::keyredistrib::tests::test_compute_lagrange_coeff ... ok
[INFO] [stdout] test pre::tests::encrypt_simple ... ok
[INFO] [stdout] test pre::tests::decrypt_simple ... ok
[INFO] [stdout] test pre::tests::false_verify_kfrag ... ok
[INFO] [stdout] test pre::tests::kfrags ... ok
[INFO] [stdout] test pre::tests::bytes_conv ... ok
[INFO] [stdout] test pre::tests::reencrypt_simple ... ok
[INFO] [stdout] test pre::tests::attach_cfrag ... ok
[INFO] [stdout] test pre::tests::decrypt_frags ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[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]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/umbral_rs-1dda78c308b6f177)
[INFO] [stderr]    Doc-tests umbral_rs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] error[E0599]: no method named `unwrap` found for tuple `(Result<Vec<KFrag>, PreErrors>, CurvePoint)` in the current scope
[INFO] [stdout]   --> src/lib.rs:42:3
[INFO] [stdout]    |
[INFO] [stdout] 35 |   let kfrags = generate_kfrags(
[INFO] [stdout]    |  ______________-
[INFO] [stdout] 36 | |   &alice,
[INFO] [stdout] 37 | |   &bob.public_key(),
[INFO] [stdout] 38 | |   threshold,
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |   KFragMode::DelegatingAndReceiving,
[INFO] [stdout] 42 | | ).unwrap();
[INFO] [stdout]    | |  -^^^^^^ method not found in `(Result<Vec<KFrag>, PreErrors>, CurvePoint)`
[INFO] [stdout]    | |__|
[INFO] [stdout]    |
[INFO] [stdout]    |
[INFO] [stdout] help: one of the expressions' fields has a method of the same name
[INFO] [stdout]    |
[INFO] [stdout] 42 | ).0.unwrap();
[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 E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069", kill_on_drop: false }`
[INFO] [stdout] 4791e54c4655a27ff4629556caea6f167aae24a20d777e0e4e9a6d084f328069
