[INFO] updating cached repository https://github.com/kchmck/sse
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 609bf45f3fcff3a67ae35ffc1bfd221a56e2001f
[INFO] testing kchmck/sse against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkchmck%2Fsse" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kchmck/sse 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 git repo https://github.com/kchmck/sse
[INFO] finished tweaking git repo https://github.com/kchmck/sse
[INFO] tweaked toml for git repo https://github.com/kchmck/sse written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/kchmck/sse already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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] 4e5bdbc49ebc5e829e1bcc3e2b392c0d3adc8a8ddebe0d6132a78d55081dc923
[INFO] running `"docker" "start" "-a" "4e5bdbc49ebc5e829e1bcc3e2b392c0d3adc8a8ddebe0d6132a78d55081dc923"`
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling serde v0.9.6
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling http_method v0.10.0 (https://github.com/kchmck/http_method.rs#9c97ee2d)
[INFO] [stderr]    Compiling uhttp_body_bytes v0.5.2
[INFO] [stderr]    Compiling uhttp_uri v0.5.1
[INFO] [stderr]    Compiling uhttp_response_header v0.5.0
[INFO] [stderr]    Compiling uhttp_version v0.6.0
[INFO] [stderr]    Compiling subslice_index v0.5.0 (https://github.com/kchmck/subslice_index.rs#6660094f)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_version-0.6.0/src/lib.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | #![feature(field_init_shorthand)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_version-0.6.0/src/lib.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | #![feature(static_in_const)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling uhttp_sse v0.5.0
[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]    Compiling uhttp_chunked_bytes v0.5.0
[INFO] [stderr]    Compiling uhttp_transfer_encoding v0.5.0
[INFO] [stderr] error: Could not compile `uhttp_version`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_transfer_encoding-0.5.0/src/lib.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(conservative_impl_trait)]
[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 `uhttp_transfer_encoding`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4e5bdbc49ebc5e829e1bcc3e2b392c0d3adc8a8ddebe0d6132a78d55081dc923"`
[INFO] running `"docker" "rm" "-f" "4e5bdbc49ebc5e829e1bcc3e2b392c0d3adc8a8ddebe0d6132a78d55081dc923"`
[INFO] [stdout] 4e5bdbc49ebc5e829e1bcc3e2b392c0d3adc8a8ddebe0d6132a78d55081dc923