[INFO] crate speedy 0.4.1 is already in cache
[INFO] extracting crate speedy 0.4.1 into work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/speedy/0.4.1
[INFO] extracting crate speedy 0.4.1 into work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/speedy/0.4.1
[INFO] validating manifest of speedy-0.4.1 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of speedy-0.4.1 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing speedy-0.4.1
[INFO] finished frobbing speedy-0.4.1
[INFO] frobbed toml for speedy-0.4.1 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/speedy/0.4.1/Cargo.toml
[INFO] started frobbing speedy-0.4.1
[INFO] finished frobbing speedy-0.4.1
[INFO] frobbed toml for speedy-0.4.1 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/speedy/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking speedy-0.4.1 against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-3/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/speedy/0.4.1:/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 12afdd581423c531d586ffc779fc4269d6e3bc8237d08f926e7df089cea3d36a
[INFO] running `"docker" "start" "-a" "12afdd581423c531d586ffc779fc4269d6e3bc8237d08f926e7df089cea3d36a"`
[INFO] [stderr]     Checking speedy v0.4.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling speedy-derive v0.3.6
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:15:25
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:31:25
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let deserialized: Vec< u8 > = Readable::read_from_buffer( (), &data ).unwrap();
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `speedy::Readable::read_from_buffer`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:56:25
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:58:36
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let deserialized: String = Readable::read_from_buffer( (), &data ).unwrap();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `speedy::Readable::read_from_buffer`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:66:25
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:76:25
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let deserialized: u8 = Readable::read_from_buffer( (), &data ).unwrap();
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `speedy::Readable::read_from_buffer`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:86:25
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:96:25
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let data = original.write_to_vec(()).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `(): speedy::Context` is not satisfied
[INFO] [stderr]   --> benches/bench.rs:98:33
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let deserialized: u64 = Readable::read_from_buffer( (), &data ).unwrap();
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `speedy::Context` is not implemented for `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `speedy::Readable::read_from_buffer`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `speedy`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "12afdd581423c531d586ffc779fc4269d6e3bc8237d08f926e7df089cea3d36a"`
[INFO] running `"docker" "rm" "-f" "12afdd581423c531d586ffc779fc4269d6e3bc8237d08f926e7df089cea3d36a"`
[INFO] [stdout] 12afdd581423c531d586ffc779fc4269d6e3bc8237d08f926e7df089cea3d36a