[INFO] fetching crate uhttp_json_api 0.6.1...
[INFO] testing uhttp_json_api-0.6.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate uhttp_json_api 0.6.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate uhttp_json_api 0.6.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uhttp_json_api 0.6.1
[INFO] finished tweaking crates.io crate uhttp_json_api 0.6.1
[INFO] tweaked toml for crates.io crate uhttp_json_api 0.6.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uhttp_uri v0.5.1
[INFO] [stderr]   Downloaded subslice_index v0.5.0
[INFO] [stderr]   Downloaded uhttp_request v0.5.1
[INFO] [stderr]   Downloaded uhttp_request_target v0.6.0
[INFO] [stderr]   Downloaded uhttp_media_type v0.5.0
[INFO] [stderr]   Downloaded uhttp_version v0.6.0
[INFO] [stderr]   Downloaded uhttp_chunked_bytes v0.5.0
[INFO] [stderr]   Downloaded uhttp_status v0.10.0
[INFO] [stderr]   Downloaded uhttp_transfer_encoding v0.5.0
[INFO] [stderr]   Downloaded uhttp_body_bytes v0.5.2
[INFO] [stderr]   Downloaded uhttp_method v0.10.0
[INFO] [stderr]   Downloaded uhttp_content_encoding v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b4da703d8952bedc41e2b84f7f656e630db7ed8a385057fd8fbc20e5243c4e9
[INFO] running `Command { std: "docker" "start" "-a" "0b4da703d8952bedc41e2b84f7f656e630db7ed8a385057fd8fbc20e5243c4e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b4da703d8952bedc41e2b84f7f656e630db7ed8a385057fd8fbc20e5243c4e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b4da703d8952bedc41e2b84f7f656e630db7ed8a385057fd8fbc20e5243c4e9", kill_on_drop: false }`
[INFO] [stdout] 0b4da703d8952bedc41e2b84f7f656e630db7ed8a385057fd8fbc20e5243c4e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aefa2590a67bd17eedbf41ebfae77d07ab93f6ee3ec4fd9def3741f7af22c185
[INFO] running `Command { std: "docker" "start" "-a" "aefa2590a67bd17eedbf41ebfae77d07ab93f6ee3ec4fd9def3741f7af22c185", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling uhttp_chunked_bytes v0.5.0
[INFO] [stderr]    Compiling uhttp_transfer_encoding v0.5.0
[INFO] [stderr]    Compiling uhttp_request_target v0.6.0
[INFO] [stderr]    Compiling uhttp_method v0.10.0
[INFO] [stderr]    Compiling subslice_index v0.5.0
[INFO] [stderr]    Compiling uhttp_content_encoding v0.5.1
[INFO] [stderr]    Compiling uhttp_version v0.6.0
[INFO] [stderr]    Compiling uhttp_status v0.10.0
[INFO] [stderr]    Compiling uhttp_uri v0.5.1
[INFO] [stderr]    Compiling uhttp_body_bytes v0.5.2
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_transfer_encoding-0.5.0/src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(conservative_impl_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_content_encoding-0.5.1/src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(conservative_impl_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uhttp_transfer_encoding` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_version-0.6.0/src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![feature(field_init_shorthand)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `field_init_shorthand` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uhttp_version-0.6.0/src/lib.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(static_in_const)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `static_in_const` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "aefa2590a67bd17eedbf41ebfae77d07ab93f6ee3ec4fd9def3741f7af22c185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aefa2590a67bd17eedbf41ebfae77d07ab93f6ee3ec4fd9def3741f7af22c185", kill_on_drop: false }`
[INFO] [stdout] aefa2590a67bd17eedbf41ebfae77d07ab93f6ee3ec4fd9def3741f7af22c185