[INFO] fetching crate rmin-eh 0.0.1...
[INFO] testing rmin-eh-0.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate rmin-eh 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rmin-eh 0.0.1
[INFO] finished tweaking crates.io crate rmin-eh 0.0.1
[INFO] tweaked toml for crates.io crate rmin-eh 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmin-eh 0.0.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c5e4744740b13434d44bf0bfea8c699828fccb78654a78275da368521b65ad34
[INFO] running `Command { std: "docker" "start" "-a" "c5e4744740b13434d44bf0bfea8c699828fccb78654a78275da368521b65ad34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5e4744740b13434d44bf0bfea8c699828fccb78654a78275da368521b65ad34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e4744740b13434d44bf0bfea8c699828fccb78654a78275da368521b65ad34", kill_on_drop: false }`
[INFO] [stdout] c5e4744740b13434d44bf0bfea8c699828fccb78654a78275da368521b65ad34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1ffe05d6036550aa532aea9f719338351cb9023ef7f988a283c4c31f8e106381
[INFO] running `Command { std: "docker" "start" "-a" "1ffe05d6036550aa532aea9f719338351cb9023ef7f988a283c4c31f8e106381", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmin-eh v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/mod.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(lang_items, panic_unwind, std_internals, strict_provenance, exposed_provenance)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `exposed_provenance` has been stable since 1.84.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/mod.rs:14:72
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(lang_items, panic_unwind, std_internals, strict_provenance, exposed_provenance)]
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `strict_provenance` has been stable since 1.84.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/mod.rs:14:53
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(lang_items, panic_unwind, std_internals, strict_provenance, exposed_provenance)]
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rmin-eh` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1ffe05d6036550aa532aea9f719338351cb9023ef7f988a283c4c31f8e106381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffe05d6036550aa532aea9f719338351cb9023ef7f988a283c4c31f8e106381", kill_on_drop: false }`
[INFO] [stdout] 1ffe05d6036550aa532aea9f719338351cb9023ef7f988a283c4c31f8e106381