[INFO] fetching crate rust_observable 0.2.1...
[INFO] testing rust_observable-0.2.1 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate rust_observable 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rust_observable 0.2.1
[INFO] finished tweaking crates.io crate rust_observable 0.2.1
[INFO] tweaked toml for crates.io crate rust_observable 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_observable 0.2.1 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust_observable_literal v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a85f3aaeb4501c98acff346f65cab8bd67e37927204f4e9f64fac3560fc4d5a
[INFO] running `Command { std: "docker" "start" "-a" "5a85f3aaeb4501c98acff346f65cab8bd67e37927204f4e9f64fac3560fc4d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a85f3aaeb4501c98acff346f65cab8bd67e37927204f4e9f64fac3560fc4d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a85f3aaeb4501c98acff346f65cab8bd67e37927204f4e9f64fac3560fc4d5a", kill_on_drop: false }`
[INFO] [stdout] 5a85f3aaeb4501c98acff346f65cab8bd67e37927204f4e9f64fac3560fc4d5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a94d0c05db858774a356c10e0569ac0673eab5ba5b8234c0e91000e0d0560173
[INFO] running `Command { std: "docker" "start" "-a" "a94d0c05db858774a356c10e0569ac0673eab5ba5b8234c0e91000e0d0560173", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling rust_observable_literal v0.1.0
[INFO] [stderr]    Compiling rust_observable v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:212:51
[INFO] [stdout]     |
[INFO] [stdout] 212 | type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stdout]     |                                                   ^                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 212 - type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stdout] 212 + type BoxedSubscriberFunction<T, Error = ()> = Arc<dyn SubscriberFunction<T, Error>>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.64s
[INFO] running `Command { std: "docker" "inspect" "a94d0c05db858774a356c10e0569ac0673eab5ba5b8234c0e91000e0d0560173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94d0c05db858774a356c10e0569ac0673eab5ba5b8234c0e91000e0d0560173", kill_on_drop: false }`
[INFO] [stdout] a94d0c05db858774a356c10e0569ac0673eab5ba5b8234c0e91000e0d0560173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc9aa75c319468d705e4a32e858da8e4300a0c98f1e0c8d31c0e7129a42138e0
[INFO] running `Command { std: "docker" "start" "-a" "dc9aa75c319468d705e4a32e858da8e4300a0c98f1e0c8d31c0e7129a42138e0", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:212:51
[INFO] [stdout]     |
[INFO] [stdout] 212 | type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stdout]     |                                                   ^                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 212 - type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stdout] 212 + type BoxedSubscriberFunction<T, Error = ()> = Arc<dyn SubscriberFunction<T, Error>>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_observable v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:212:51
[INFO] [stdout]     |
[INFO] [stdout] 212 | type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stdout]     |                                                   ^                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 212 - type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stdout] 212 + type BoxedSubscriberFunction<T, Error = ()> = Arc<dyn SubscriberFunction<T, Error>>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "dc9aa75c319468d705e4a32e858da8e4300a0c98f1e0c8d31c0e7129a42138e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc9aa75c319468d705e4a32e858da8e4300a0c98f1e0c8d31c0e7129a42138e0", kill_on_drop: false }`
[INFO] [stdout] dc9aa75c319468d705e4a32e858da8e4300a0c98f1e0c8d31c0e7129a42138e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8607963abe9ad54db27236cf2c8ec9da8b050edf385e5ae4bb0cc0d7fd07f252
[INFO] running `Command { std: "docker" "start" "-a" "8607963abe9ad54db27236cf2c8ec9da8b050edf385e5ae4bb0cc0d7fd07f252", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:212:51
[INFO] [stderr]     |
[INFO] [stderr] 212 | type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stderr]     |                                                   ^                                ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 212 - type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stderr] 212 + type BoxedSubscriberFunction<T, Error = ()> = Arc<dyn SubscriberFunction<T, Error>>;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_observable` (lib) generated 1 warning (run `cargo fix --lib -p rust_observable` to apply 1 suggestion)
[INFO] [stderr] warning: `rust_observable` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_observable-e3fd97c4c56d3a5d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::subscription ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_observable
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:212:51
[INFO] [stderr]     |
[INFO] [stderr] 212 | type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stderr]     |                                                   ^                                ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 212 - type BoxedSubscriberFunction<T, Error = ()> = Arc<(dyn SubscriberFunction<T, Error>)>;
[INFO] [stderr] 212 + type BoxedSubscriberFunction<T, Error = ()> = Arc<dyn SubscriberFunction<T, Error>>;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 17) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 17) stdout ----
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:45:6
[INFO] [stdout]     |
[INFO] [stdout]  45 |     .filter(|value| true)
[INFO] [stdout]     |      ^^^^^^ cannot infer type for type parameter `F` declared on the method `filter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: rust_observable::SubscriberFunction<String>`
[INFO] [stdout] note: required by a bound in `rust_observable::Observable::<T, Error>::filter`
[INFO] [stdout]    --> src/lib.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn filter<F>(&self, filter_fn: impl Fn(T) -> bool + 'static + Send + Sync) -> Observable<T, Error>
[INFO] [stdout]     |            ------ required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 138 |             F: SubscriberFunction<T, Error>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Observable::<T, Error>::filter`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 17)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "8607963abe9ad54db27236cf2c8ec9da8b050edf385e5ae4bb0cc0d7fd07f252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8607963abe9ad54db27236cf2c8ec9da8b050edf385e5ae4bb0cc0d7fd07f252", kill_on_drop: false }`
[INFO] [stdout] 8607963abe9ad54db27236cf2c8ec9da8b050edf385e5ae4bb0cc0d7fd07f252
