[INFO] crate wood 0.4.2 is already in cache
[INFO] testing wood-0.4.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate wood 0.4.2 into work/builds/worker-11/source
[INFO] validating manifest of crates.io crate wood 0.4.2 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 wood 0.4.2
[INFO] finished tweaking crates.io crate wood 0.4.2
[INFO] tweaked toml for crates.io crate wood 0.4.2 written to work/builds/worker-11/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-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/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] af20ff0b09716fb8041abbc91e0f2d6f1045faf83134de35b1fe04bdc24151f2
[INFO] running `"docker" "start" "-a" "af20ff0b09716fb8041abbc91e0f2d6f1045faf83134de35b1fe04bdc24151f2"`
[INFO] [stderr]    Compiling ref_slice v1.2.0
[INFO] [stderr]    Compiling wood v0.4.2 (/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(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(drain_filter)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:227:23
[INFO] [stderr]     |
[INFO] [stderr] 227 |     pub cause:Option<Box<Error>>,
[INFO] [stderr]     |                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:239:67
[INFO] [stderr]     |
[INFO] [stderr] 239 |     pub fn new_with_cause(source:&Wood, msg:String, cause:Option<Box<Error>>) -> Self {
[INFO] [stderr]     |                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:247:29
[INFO] [stderr]     |
[INFO] [stderr] 247 |     fn cause(&self) -> Option<&Error> { self.cause.as_ref().map(|e| e.as_ref()) }
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parsers/mod.rs:23:29
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn cause(&self) -> Option<&Error> { None }
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `wood`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "af20ff0b09716fb8041abbc91e0f2d6f1045faf83134de35b1fe04bdc24151f2"`
[INFO] running `"docker" "rm" "-f" "af20ff0b09716fb8041abbc91e0f2d6f1045faf83134de35b1fe04bdc24151f2"`
[INFO] [stdout] af20ff0b09716fb8041abbc91e0f2d6f1045faf83134de35b1fe04bdc24151f2