[INFO] updating cached repository gruberb/ynab_doctor_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gruberb/ynab_doctor_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gruberb/ynab_doctor_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/gruberb/ynab_doctor_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gruberb/ynab_doctor_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gruberb/ynab_doctor_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gruberb/ynab_doctor_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gruberb/ynab_doctor_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 62ade82c6c2f0c95a2232c3c1264feed9f99b62d
[INFO] sha for GitHub repo gruberb/ynab_doctor_rust: 62ade82c6c2f0c95a2232c3c1264feed9f99b62d
[INFO] validating manifest of gruberb/ynab_doctor_rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gruberb/ynab_doctor_rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gruberb/ynab_doctor_rust
[INFO] finished frobbing gruberb/ynab_doctor_rust
[INFO] frobbed toml for gruberb/ynab_doctor_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/gruberb/ynab_doctor_rust/Cargo.toml
[INFO] started frobbing gruberb/ynab_doctor_rust
[INFO] finished frobbing gruberb/ynab_doctor_rust
[INFO] frobbed toml for gruberb/ynab_doctor_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gruberb/ynab_doctor_rust/Cargo.toml
[INFO] crate gruberb/ynab_doctor_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gruberb/ynab_doctor_rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gruberb/ynab_doctor_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 85b5e0d1e5a932abcdd2644e66e8169b917cecbf24a2541d974fe62e6cba2883
[INFO] running `"docker" "start" "-a" "85b5e0d1e5a932abcdd2644e66e8169b917cecbf24a2541d974fe62e6cba2883"`
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.2
[INFO] [stderr]    Compiling path-table v1.0.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling buf_redux v0.8.1
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling cookie v0.11.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.13
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.13/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(futures_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]   --> /opt/crater/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<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `fn(std::pin::Pin<&mut future::future_obj::LocalFutureObj<'a, T>>, &mut std::task::Context<'_>) -> std::task::Poll<T>`
[INFO] [stderr]               found type `fn(std::pin::Pin<&mut future::future_obj::LocalFutureObj<'a, T>>, &std::task::Waker) -> std::task::Poll<T>`
[INFO] [stderr] 
[INFO] [stderr] error[E0053]: method `poll` has an incompatible type for trait
[INFO] [stderr]    --> /opt/crater/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<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `fn(std::pin::Pin<&mut future::future_obj::FutureObj<'a, T>>, &mut std::task::Context<'_>) -> std::task::Poll<T>`
[INFO] [stderr]                found type `fn(std::pin::Pin<&mut future::future_obj::FutureObj<'a, T>>, &std::task::Waker) -> std::task::Poll<T>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> /opt/crater/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 type `&mut std::task::Context<'_>`
[INFO] [stderr]               found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/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 type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/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 type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/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 type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/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 type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/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 type `&mut std::task::Context<'_>`
[INFO] [stderr]                found type `&std::task::Waker`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0053, E0308, E0554.
[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" "85b5e0d1e5a932abcdd2644e66e8169b917cecbf24a2541d974fe62e6cba2883"`
[INFO] running `"docker" "rm" "-f" "85b5e0d1e5a932abcdd2644e66e8169b917cecbf24a2541d974fe62e6cba2883"`
[INFO] [stdout] 85b5e0d1e5a932abcdd2644e66e8169b917cecbf24a2541d974fe62e6cba2883