[INFO] fetching crate odra-macros 2.4.0...
[INFO] testing odra-macros-2.4.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate odra-macros 2.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate odra-macros 2.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate odra-macros 2.4.0
[INFO] tweaked toml for crates.io crate odra-macros 2.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate odra-macros 2.4.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate odra-macros 2.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ff v0.13.1
[INFO] [stderr]   Downloaded serde_bytes v0.11.17
[INFO] [stderr]   Downloaded base16 v0.2.1
[INFO] [stderr]   Downloaded blake2 v0.9.2
[INFO] [stderr]   Downloaded k256 v0.13.4
[INFO] [stderr]   Downloaded prettyplease v0.2.36
[INFO] [stderr]   Downloaded hex_fmt v0.3.0
[INFO] [stderr]   Downloaded serde-map-to-array v1.1.1
[INFO] [stderr]   Downloaded convert_case v0.5.0
[INFO] [stderr]   Downloaded casper-types v6.0.1
[INFO] [stderr]   Downloaded derive-try-from-ref v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44208765aaade4a1f63efaa670a586dff82e6cb85dfb434fcf7ee41bcafa4975
[INFO] running `Command { std: "docker" "start" "-a" "44208765aaade4a1f63efaa670a586dff82e6cb85dfb434fcf7ee41bcafa4975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44208765aaade4a1f63efaa670a586dff82e6cb85dfb434fcf7ee41bcafa4975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44208765aaade4a1f63efaa670a586dff82e6cb85dfb434fcf7ee41bcafa4975", kill_on_drop: false }`
[INFO] [stdout] 44208765aaade4a1f63efaa670a586dff82e6cb85dfb434fcf7ee41bcafa4975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e960f90be9d76143bcafece9c2e88a690622576358cfda0b33fe8c107914e80e
[INFO] running `Command { std: "docker" "start" "-a" "e960f90be9d76143bcafece9c2e88a690622576358cfda0b33fe8c107914e80e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling derive-try-from-ref v0.1.0
[INFO] [stderr]    Compiling syn_derive v0.1.8
[INFO] [stderr]    Compiling odra-macros v2.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(box_patterns, result_flattening)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `result_flattening` has been stable since 1.89.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(box_patterns, result_flattening)]
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `odra-macros` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e960f90be9d76143bcafece9c2e88a690622576358cfda0b33fe8c107914e80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e960f90be9d76143bcafece9c2e88a690622576358cfda0b33fe8c107914e80e", kill_on_drop: false }`
[INFO] [stdout] e960f90be9d76143bcafece9c2e88a690622576358cfda0b33fe8c107914e80e
