[INFO] crate adivon 0.2.6 is already in cache
[INFO] testing adivon-0.2.6 against 1.38.0 for beta-1.39-1
[INFO] extracting crate adivon 0.2.6 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate adivon 0.2.6 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate adivon 0.2.6
[INFO] finished tweaking crates.io crate adivon 0.2.6
[INFO] tweaked toml for crates.io crate adivon 0.2.6 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 77180390a71a6a9b724b7007fd8d65f39c2d8ae578e88c03a7f1abc0ac758aa4
[INFO] running `"docker" "start" "-a" "77180390a71a6a9b724b7007fd8d65f39c2d8ae578e88c03a7f1abc0ac758aa4"`
[INFO] [stderr]    Compiling adivon v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(associated_type_defaults, plugin)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]  --> src/hashst.rs:1:31
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::hash::{Hash, Hasher, SipHasher};
[INFO] [stderr]   |                               ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]   --> src/hashst.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut hasher = SipHasher::new();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher::new': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]   --> src/hashst.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut hasher = SipHasher::new();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `adivon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "77180390a71a6a9b724b7007fd8d65f39c2d8ae578e88c03a7f1abc0ac758aa4"`
[INFO] running `"docker" "rm" "-f" "77180390a71a6a9b724b7007fd8d65f39c2d8ae578e88c03a7f1abc0ac758aa4"`
[INFO] [stdout] 77180390a71a6a9b724b7007fd8d65f39c2d8ae578e88c03a7f1abc0ac758aa4