[INFO] crate showdown 0.3.1 is already in cache [INFO] checking showdown-0.3.1 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66852 [INFO] extracting crate showdown 0.3.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate showdown 0.3.1 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7 [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate showdown 0.3.1 [INFO] finished tweaking crates.io crate showdown 0.3.1 [INFO] tweaked toml for crates.io crate showdown 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] fdb83d19dbf2a607a70b3c8dcb18d90f71cfde42831a6b39c191ad79e0b42460 [INFO] running `"docker" "start" "-a" "fdb83d19dbf2a607a70b3c8dcb18d90f71cfde42831a6b39c191ad79e0b42460"` [INFO] [stderr] Checking comparator v0.2.0 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.13 [INFO] [stderr] Checking want v0.2.0 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-buf v0.1.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling rental-impl v0.5.5 [INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:64:5 [INFO] [stderr] | [INFO] [stderr] 64 | fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected fn pointer `fn(std::pin::Pin<&mut future::future_obj::LocalFutureObj<'a, T>>, &mut std::task::Context<'_>) -> std::task::Poll<_>` [INFO] [stderr] found fn pointer `fn(std::pin::Pin<&mut future::future_obj::LocalFutureObj<'a, T>>, &std::task::Waker) -> std::task::Poll<_>` [INFO] [stderr] [INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:114:5 [INFO] [stderr] | [INFO] [stderr] 114 | fn poll(self: Pin<&mut Self>, waker: &Waker) -> Poll { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected fn pointer `fn(std::pin::Pin<&mut future::future_obj::FutureObj<'a, T>>, &mut std::task::Context<'_>) -> std::task::Poll<_>` [INFO] [stderr] found fn pointer `fn(std::pin::Pin<&mut future::future_obj::FutureObj<'a, T>>, &std::task::Waker) -> std::task::Poll<_>` [INFO] [stderr] [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/mod.rs:86:19 [INFO] [stderr] | [INFO] [stderr] 86 | self.poll(waker) [INFO] [stderr] | ^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&std::task::Waker` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:118:44 [INFO] [stderr] | [INFO] [stderr] 118 | LocalFutureObj::poll(pinned_field, waker) [INFO] [stderr] | ^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&std::task::Waker` [INFO] [stderr] [INFO] [stderr] Checking serde v1.0.103 [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:165:20 [INFO] [stderr] | [INFO] [stderr] 165 | F::poll(p, waker) [INFO] [stderr] | ^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&std::task::Waker` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:182:25 [INFO] [stderr] | [INFO] [stderr] 182 | F::poll(future, waker) [INFO] [stderr] | ^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&std::task::Waker` [INFO] [stderr] [INFO] [stderr] Checking http-body v0.1.0 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:203:26 [INFO] [stderr] | [INFO] [stderr] 203 | F::poll(pin, waker) [INFO] [stderr] | ^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&std::task::Waker` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/future/future_obj.rs:225:26 [INFO] [stderr] | [INFO] [stderr] 225 | F::poll(pin, waker) [INFO] [stderr] | ^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&std::task::Waker` [INFO] [stderr] [INFO] [stderr] error: aborting due to 8 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0053, E0308. [INFO] [stderr] For more information about an error, try `rustc --explain E0053`. [INFO] [stderr] error: could not compile `futures-core-preview`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "fdb83d19dbf2a607a70b3c8dcb18d90f71cfde42831a6b39c191ad79e0b42460"` [INFO] running `"docker" "rm" "-f" "fdb83d19dbf2a607a70b3c8dcb18d90f71cfde42831a6b39c191ad79e0b42460"` [INFO] [stdout] fdb83d19dbf2a607a70b3c8dcb18d90f71cfde42831a6b39c191ad79e0b42460