[INFO] crate compiletest_rs 0.3.22 is already in cache
[INFO] extracting crate compiletest_rs 0.3.22 into work/ex/beta-1.38-1/sources/1.37.0/reg/compiletest_rs/0.3.22
[INFO] extracting crate compiletest_rs 0.3.22 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/compiletest_rs/0.3.22
[INFO] validating manifest of compiletest_rs-0.3.22 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 compiletest_rs-0.3.22 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 compiletest_rs-0.3.22
[INFO] finished frobbing compiletest_rs-0.3.22
[INFO] frobbed toml for compiletest_rs-0.3.22 written to work/ex/beta-1.38-1/sources/1.37.0/reg/compiletest_rs/0.3.22/Cargo.toml
[INFO] started frobbing compiletest_rs-0.3.22
[INFO] finished frobbing compiletest_rs-0.3.22
[INFO] frobbed toml for compiletest_rs-0.3.22 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/compiletest_rs/0.3.22/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 compiletest_rs-0.3.22 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-0/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/compiletest_rs/0.3.22:/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] f64f14287ee6031432639a6d0a0297ad9e35f2306176df1b7d837c07f628b424
[INFO] running `"docker" "start" "-a" "f64f14287ee6031432639a6d0a0297ad9e35f2306176df1b7d837c07f628b424"`
[INFO] [stderr]    Compiling compiletest_rs v0.3.22 (/opt/crater/workdir)
[INFO] [stderr]    Compiling rustfix v0.4.6
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:13:39
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![cfg_attr(not(feature = "norustc"), feature(rustc_private))]
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:14:38
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![cfg_attr(not(feature = "stable"), feature(test))]
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/header.rs:399:61
[INFO] [stderr]     |
[INFO] [stderr] 399 | fn iter_header(testfile: &Path, cfg: Option<&str>, it: &mut FnMut(&str)) {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&str)`
[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/read2.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |                  data: &mut FnMut(bool, &mut Vec<u8>, bool)) -> io::Result<()> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(bool, &mut Vec<u8>, bool)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `compiletest_rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f64f14287ee6031432639a6d0a0297ad9e35f2306176df1b7d837c07f628b424"`
[INFO] running `"docker" "rm" "-f" "f64f14287ee6031432639a6d0a0297ad9e35f2306176df1b7d837c07f628b424"`
[INFO] [stdout] f64f14287ee6031432639a6d0a0297ad9e35f2306176df1b7d837c07f628b424