[INFO] crate temp_utp 0.8.1 is already in cache
[INFO] extracting crate temp_utp 0.8.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/temp_utp/0.8.1
[INFO] extracting crate temp_utp 0.8.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/temp_utp/0.8.1
[INFO] validating manifest of temp_utp-0.8.1 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 temp_utp-0.8.1 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 temp_utp-0.8.1
[INFO] finished frobbing temp_utp-0.8.1
[INFO] frobbed toml for temp_utp-0.8.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/temp_utp/0.8.1/Cargo.toml
[INFO] started frobbing temp_utp-0.8.1
[INFO] finished frobbing temp_utp-0.8.1
[INFO] frobbed toml for temp_utp-0.8.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/temp_utp/0.8.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing temp_utp-0.8.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/temp_utp/0.8.1:/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=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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e7574c6d67ed9b58c3638a790600063786ef341e6886381874ef5594c282e629
[INFO] running `"docker" "start" "-a" "e7574c6d67ed9b58c3638a790600063786ef341e6886381874ef5594c282e629"`
[INFO] [stderr]    Compiling temp_utp v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `min` is imported redundantly
[INFO] [stderr]    --> src/socket.rs:659:33
[INFO] [stderr]     |
[INFO] [stderr] 1   | use std::cmp::{min, max};
[INFO] [stderr]     |                --- the item `min` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 659 |                             use std::cmp::min;
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
[INFO] [stderr]    --> src/packet.rs:383:30
[INFO] [stderr]     |
[INFO] [stderr] 383 |                 ty: unsafe { transmute(kind) },
[INFO] [stderr]     |                              ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: source type: `u8` (8 bits)
[INFO] [stderr]     = note: target type: `packet::ExtensionType` (0 bits)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/socket.rs:784:17
[INFO] [stderr]     |
[INFO] [stderr] 784 |             let mut packet = &mut self.send_window[0];
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0512`.
[INFO] [stderr] error: Could not compile `temp_utp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e7574c6d67ed9b58c3638a790600063786ef341e6886381874ef5594c282e629"`
[INFO] running `"docker" "rm" "-f" "e7574c6d67ed9b58c3638a790600063786ef341e6886381874ef5594c282e629"`
[INFO] [stdout] e7574c6d67ed9b58c3638a790600063786ef341e6886381874ef5594c282e629