[INFO] fetching crate bcfs 0.4.1...
[INFO] testing bcfs-0.4.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bcfs 0.4.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate bcfs 0.4.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bcfs 0.4.1
[INFO] finished tweaking crates.io crate bcfs 0.4.1
[INFO] tweaked toml for crates.io crate bcfs 0.4.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blockchain-traits v0.4.1
[INFO] [stderr]   Downloaded wasi-types v0.1.6
[INFO] [stderr]   Downloaded oasis-borsh-derive-internal v0.2.14
[INFO] [stderr]   Downloaded oasis-borsh-derive v0.2.10
[INFO] [stderr]   Downloaded oasis-borsh v0.2.12
[INFO] [stderr]   Downloaded memchain v0.4.1
[INFO] [stderr]   Downloaded oasis-types v0.4.0
[INFO] [stderr]   Downloaded proper v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ccf732595d18a2f1d56fb3e95a226b45537db61540ca3a101e05525ae5fb2b9b
[INFO] running `Command { std: "docker" "start" "-a" "ccf732595d18a2f1d56fb3e95a226b45537db61540ca3a101e05525ae5fb2b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccf732595d18a2f1d56fb3e95a226b45537db61540ca3a101e05525ae5fb2b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf732595d18a2f1d56fb3e95a226b45537db61540ca3a101e05525ae5fb2b9b", kill_on_drop: false }`
[INFO] [stdout] ccf732595d18a2f1d56fb3e95a226b45537db61540ca3a101e05525ae5fb2b9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cfbbd48e87ec43d141f2a87285d68f4af125a74fd5e463ad593a4d5513274718
[INFO] running `Command { std: "docker" "start" "-a" "cfbbd48e87ec43d141f2a87285d68f4af125a74fd5e463ad593a4d5513274718", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling oasis-borsh-derive-internal v0.2.14
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling oasis-borsh-derive v0.2.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling proper v0.1.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proper-0.1.5/src/lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proper` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cfbbd48e87ec43d141f2a87285d68f4af125a74fd5e463ad593a4d5513274718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfbbd48e87ec43d141f2a87285d68f4af125a74fd5e463ad593a4d5513274718", kill_on_drop: false }`
[INFO] [stdout] cfbbd48e87ec43d141f2a87285d68f4af125a74fd5e463ad593a4d5513274718