[INFO] crate futures-signals 0.2.4 is already in cache
[INFO] extracting crate futures-signals 0.2.4 into work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/futures-signals/0.2.4
[INFO] extracting crate futures-signals 0.2.4 into work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/futures-signals/0.2.4
[INFO] validating manifest of futures-signals-0.2.4 on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of futures-signals-0.2.4 on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing futures-signals-0.2.4
[INFO] finished frobbing futures-signals-0.2.4
[INFO] frobbed toml for futures-signals-0.2.4 written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/futures-signals/0.2.4/Cargo.toml
[INFO] started frobbing futures-signals-0.2.4
[INFO] finished frobbing futures-signals-0.2.4
[INFO] frobbed toml for futures-signals-0.2.4 written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/futures-signals/0.2.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking futures-signals-0.2.4 against master#e2f221c75932de7a29845c8d6f1f73536ad00c41 for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-5/master#e2f221c75932de7a29845c8d6f1f73536ad00c41:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/futures-signals/0.2.4:/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=forbid" "-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" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6e5f1b1b67182bd8679cff46444257a52577864c6ca1f3de17929b343d6b200a
[INFO] running `"docker" "start" "-a" "6e5f1b1b67182bd8679cff46444257a52577864c6ca1f3de17929b343d6b200a"`
[INFO] [stderr]    Compiling proc-macro-nested v0.1.2
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.12
[INFO] [stderr]    Compiling proc-macro-hack v0.5.4
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.12
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.12
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.12
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.12
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.12
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.12
[INFO] [stderr]     Checking futures-signals v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/signal/broadcaster.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::pin::{Pin, Unpin};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/signal/channel.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::pin::{Pin, Unpin};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/signal/mutable.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::pin::{Pin, Unpin};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/signal/signal.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::pin::{Pin, Unpin};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/signal_vec.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::pin::{Pin, Unpin};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]     --> src/signal_vec.rs:1765:25
[INFO] [stderr]      |
[INFO] [stderr] 1765 |     use std::pin::{Pin, Unpin};
[INFO] [stderr]      |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/internal.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::pin::{Unpin, Pin};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: trait `Unpin` is private
[INFO] [stderr]  --> src/future.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::pin::{Pin, Unpin};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0603`.
[INFO] [stderr] error: Could not compile `futures-signals`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6e5f1b1b67182bd8679cff46444257a52577864c6ca1f3de17929b343d6b200a"`
[INFO] running `"docker" "rm" "-f" "6e5f1b1b67182bd8679cff46444257a52577864c6ca1f3de17929b343d6b200a"`
[INFO] [stdout] 6e5f1b1b67182bd8679cff46444257a52577864c6ca1f3de17929b343d6b200a