[INFO] fetching crate emf-core-base-rs 0.1.3...
[INFO] checking emf-core-base-rs-0.1.3 against 1.95.0 for pr-155915
[INFO] extracting crate emf-core-base-rs 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate emf-core-base-rs 0.1.3
[INFO] finished tweaking crates.io crate emf-core-base-rs 0.1.3
[INFO] tweaked toml for crates.io crate emf-core-base-rs 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate emf-core-base-rs 0.1.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--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]      Locking 12 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded emf-core-base-rs-ffi v0.1.2
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2df3326a8ba2ca76e69addb3113c8b106b5492fee889e02894ec89a174b95bdf
[INFO] running `Command { std: "docker" "start" "-a" "2df3326a8ba2ca76e69addb3113c8b106b5492fee889e02894ec89a174b95bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df3326a8ba2ca76e69addb3113c8b106b5492fee889e02894ec89a174b95bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df3326a8ba2ca76e69addb3113c8b106b5492fee889e02894ec89a174b95bdf", kill_on_drop: false }`
[INFO] [stdout] 2df3326a8ba2ca76e69addb3113c8b106b5492fee889e02894ec89a174b95bdf
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d63aa873eaa365ed4c224d2b537c14d8f3daaf9146aca4e563b87ea82d7a4384
[INFO] running `Command { std: "docker" "start" "-a" "d63aa873eaa365ed4c224d2b537c14d8f3daaf9146aca4e563b87ea82d7a4384", kill_on_drop: false }`
[INFO] [stderr]     Checking emf-core-base-rs-ffi v0.1.2
[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/emf-core-base-rs-ffi-0.1.2/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(c_unwind)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `c_unwind` has been stable since `1.81.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `emf-core-base-rs-ffi` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d63aa873eaa365ed4c224d2b537c14d8f3daaf9146aca4e563b87ea82d7a4384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63aa873eaa365ed4c224d2b537c14d8f3daaf9146aca4e563b87ea82d7a4384", kill_on_drop: false }`
[INFO] [stdout] d63aa873eaa365ed4c224d2b537c14d8f3daaf9146aca4e563b87ea82d7a4384