[INFO] fetching crate ramlink 0.1.0...
[INFO] testing ramlink-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate ramlink 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ramlink 0.1.0
[INFO] finished tweaking crates.io crate ramlink 0.1.0
[INFO] tweaked toml for crates.io crate ramlink 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ramlink 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-assert v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5fda862ec201032cc17b554a8d3641ef5eac14866e6a0e18b865b0379f3e4c6a
[INFO] running `Command { std: "docker" "start" "-a" "5fda862ec201032cc17b554a8d3641ef5eac14866e6a0e18b865b0379f3e4c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fda862ec201032cc17b554a8d3641ef5eac14866e6a0e18b865b0379f3e4c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fda862ec201032cc17b554a8d3641ef5eac14866e6a0e18b865b0379f3e4c6a", kill_on_drop: false }`
[INFO] [stdout] 5fda862ec201032cc17b554a8d3641ef5eac14866e6a0e18b865b0379f3e4c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 509121f31f3a6fe9fd772ed8badc414d05b2782c133ea7aff14aaada3f78949f
[INFO] running `Command { std: "docker" "start" "-a" "509121f31f3a6fe9fd772ed8badc414d05b2782c133ea7aff14aaada3f78949f", kill_on_drop: false }`
[INFO] [stderr]    Compiling const-assert v1.0.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/const-assert-1.0.1/src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(generic_const_exprs)]
[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 `const-assert` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "509121f31f3a6fe9fd772ed8badc414d05b2782c133ea7aff14aaada3f78949f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509121f31f3a6fe9fd772ed8badc414d05b2782c133ea7aff14aaada3f78949f", kill_on_drop: false }`
[INFO] [stdout] 509121f31f3a6fe9fd772ed8badc414d05b2782c133ea7aff14aaada3f78949f