[INFO] fetching crate odra-macros 2.4.0...
[INFO] testing odra-macros-2.4.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate odra-macros 2.4.0 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate odra-macros 2.4.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-map-to-array v1.1.1
[INFO] [stderr]   Downloaded base16 v0.2.1
[INFO] [stderr]   Downloaded derive-try-from-ref v0.1.0
[INFO] [stderr]   Downloaded casper-types v6.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da6e7b2e2eca4bc98f0fa82a747f0bc67e2824b3e6d58ccd472b0e0ed22ef7a3
[INFO] running `Command { std: "docker" "start" "-a" "da6e7b2e2eca4bc98f0fa82a747f0bc67e2824b3e6d58ccd472b0e0ed22ef7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da6e7b2e2eca4bc98f0fa82a747f0bc67e2824b3e6d58ccd472b0e0ed22ef7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da6e7b2e2eca4bc98f0fa82a747f0bc67e2824b3e6d58ccd472b0e0ed22ef7a3", kill_on_drop: false }`
[INFO] [stdout] da6e7b2e2eca4bc98f0fa82a747f0bc67e2824b3e6d58ccd472b0e0ed22ef7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5419cfa1201c066b339f39f08814ae8b15cf66bec30d3798865bfd0b8241167
[INFO] running `Command { std: "docker" "start" "-a" "e5419cfa1201c066b339f39f08814ae8b15cf66bec30d3798865bfd0b8241167", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive-try-from-ref v0.1.0
[INFO] [stderr]    Compiling derive_more v0.99.20
[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" "e5419cfa1201c066b339f39f08814ae8b15cf66bec30d3798865bfd0b8241167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5419cfa1201c066b339f39f08814ae8b15cf66bec30d3798865bfd0b8241167", kill_on_drop: false }`
[INFO] [stdout] e5419cfa1201c066b339f39f08814ae8b15cf66bec30d3798865bfd0b8241167