[INFO] crate rtrace 1.0.0 is already in cache
[INFO] testing rtrace-1.0.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rtrace 1.0.0 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate rtrace 1.0.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rtrace 1.0.0
[INFO] finished tweaking crates.io crate rtrace 1.0.0
[INFO] tweaked toml for crates.io crate rtrace 1.0.0 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] b76befd276a63272f4df9b68f153d54e53b84af1a62b41178f018806defc5bd7
[INFO] running `"docker" "start" "-a" "b76befd276a63272f4df9b68f153d54e53b84af1a62b41178f018806defc5bd7"`
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling rtrace v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rust/render.rs:262:32
[INFO] [stderr]     |
[INFO] [stderr] 262 |                   writer: &mut RGBABufferWriter,
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RGBABufferWriter`
[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/rust/render.rs:364:23
[INFO] [stderr]     |
[INFO] [stderr] 364 |         let out: &mut io::Write = match *self.out {
[INFO] [stderr]     |                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `"docker" "inspect" "b76befd276a63272f4df9b68f153d54e53b84af1a62b41178f018806defc5bd7"`
[INFO] running `"docker" "rm" "-f" "b76befd276a63272f4df9b68f153d54e53b84af1a62b41178f018806defc5bd7"`
[INFO] [stdout] b76befd276a63272f4df9b68f153d54e53b84af1a62b41178f018806defc5bd7
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4af73952dc816e2e269235fa4bddccbe89aa3c636ced0eed9db3c117dc0ccb49
[INFO] running `"docker" "start" "-a" "4af73952dc816e2e269235fa4bddccbe89aa3c636ced0eed9db3c117dc0ccb49"`
[INFO] [stderr]    Compiling rtrace v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/rust/lib.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(test, feature(test))]
[INFO] [stderr]   |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rust/render.rs:262:32
[INFO] [stderr]     |
[INFO] [stderr] 262 |                   writer: &mut RGBABufferWriter,
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RGBABufferWriter`
[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/rust/render.rs:364:23
[INFO] [stderr]     |
[INFO] [stderr] 364 |         let out: &mut io::Write = match *self.out {
[INFO] [stderr]     |                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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 `rtrace`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4af73952dc816e2e269235fa4bddccbe89aa3c636ced0eed9db3c117dc0ccb49"`
[INFO] running `"docker" "rm" "-f" "4af73952dc816e2e269235fa4bddccbe89aa3c636ced0eed9db3c117dc0ccb49"`
[INFO] [stdout] 4af73952dc816e2e269235fa4bddccbe89aa3c636ced0eed9db3c117dc0ccb49