[INFO] fetching crate roopes-derive 0.1.0...
[INFO] checking roopes-derive-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate roopes-derive 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate roopes-derive 0.1.0
[INFO] finished tweaking crates.io crate roopes-derive 0.1.0
[INFO] tweaked toml for crates.io crate roopes-derive 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate roopes-derive 0.1.0 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 36 packages to latest compatible versions
[INFO] [stderr]       Adding delegate v0.9.0 (available: v0.13.5)
[INFO] [stderr]       Adding derive-getters v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding heck v0.4.1 (available: v0.5.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded enclose v1.2.1
[INFO] [stderr]   Downloaded delegate v0.9.0
[INFO] [stderr]   Downloaded derive-getters v0.3.0
[INFO] [stderr]   Downloaded roopes-core v0.1.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd39d2c0877cd78200feaad26d832676913107a535a4ede49fcf3fc8b32a078b
[INFO] running `Command { std: "docker" "start" "-a" "cd39d2c0877cd78200feaad26d832676913107a535a4ede49fcf3fc8b32a078b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd39d2c0877cd78200feaad26d832676913107a535a4ede49fcf3fc8b32a078b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd39d2c0877cd78200feaad26d832676913107a535a4ede49fcf3fc8b32a078b", kill_on_drop: false }`
[INFO] [stdout] cd39d2c0877cd78200feaad26d832676913107a535a4ede49fcf3fc8b32a078b
[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=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] c7ed3df0e756748fc16f97de4828746c34ed489e4d6b445b3cae027e66dbd0ee
[INFO] running `Command { std: "docker" "start" "-a" "c7ed3df0e756748fc16f97de4828746c34ed489e4d6b445b3cae027e66dbd0ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking winnow v1.0.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]     Checking toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]     Checking serde_spanned v1.1.1
[INFO] [stderr]     Checking syn v2.0.117
[INFO] [stderr]     Checking toml_writer v1.1.1+spec-1.1.0
[INFO] [stderr]     Checking enclose v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]     Checking toml v1.1.2+spec-1.1.0
[INFO] [stderr]     Checking trybuild v1.0.116
[INFO] [stderr]     Checking prettyplease v0.2.37
[INFO] [stderr]    Compiling embed-doc-image v0.1.4
[INFO] [stderr]    Compiling delegate v0.9.0
[INFO] [stderr]    Compiling derive-getters v0.3.0
[INFO] [stderr]     Checking roopes-core v0.1.1
[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/roopes-core-0.1.1/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `associated_type_bounds` has been stable since `1.79.0` 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 `roopes-core` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c7ed3df0e756748fc16f97de4828746c34ed489e4d6b445b3cae027e66dbd0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7ed3df0e756748fc16f97de4828746c34ed489e4d6b445b3cae027e66dbd0ee", kill_on_drop: false }`
[INFO] [stdout] c7ed3df0e756748fc16f97de4828746c34ed489e4d6b445b3cae027e66dbd0ee
