[INFO] fetching crate fluence-faas 0.8.1...
[INFO] testing fluence-faas-0.8.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate fluence-faas 0.8.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate fluence-faas 0.8.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fluence-faas 0.8.1
[INFO] finished tweaking crates.io crate fluence-faas 0.8.1
[INFO] tweaked toml for crates.io crate fluence-faas 0.8.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] e33b8d81441e719ce84fbe38c551af877a81c8e9362194b0a6c5efcdb01c20d2
[INFO] running `Command { std: "docker" "start" "-a" "e33b8d81441e719ce84fbe38c551af877a81c8e9362194b0a6c5efcdb01c20d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e33b8d81441e719ce84fbe38c551af877a81c8e9362194b0a6c5efcdb01c20d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e33b8d81441e719ce84fbe38c551af877a81c8e9362194b0a6c5efcdb01c20d2", kill_on_drop: false }`
[INFO] [stdout] e33b8d81441e719ce84fbe38c551af877a81c8e9362194b0a6c5efcdb01c20d2
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc0ea274120d6db20c7f754cfd25b7d94b5a418c24baf8aff9d501d28bc5d4a9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc0ea274120d6db20c7f754cfd25b7d94b5a418c24baf8aff9d501d28bc5d4a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling marine-macro-impl v0.6.10
[INFO] [stderr]    Compiling marine-timestamp-macro v0.6.10
[INFO] [stderr]    Compiling fluence-it-types v0.3.0
[INFO] [stderr]    Compiling marine-macro v0.6.10
[INFO] [stderr]    Compiling it-lilo v0.1.0
[INFO] [stderr]    Compiling wasmer-interface-types-fl v0.20.1
[INFO] [stderr]    Compiling marine-rs-sdk-main v0.6.10
[INFO] [stderr]    Compiling marine-module-info-parser v0.2.0
[INFO] [stderr]    Compiling marine-rs-sdk v0.6.11
[INFO] [stderr]    Compiling marine-it-interfaces v0.4.0
[INFO] [stderr]    Compiling marine-module-interface v0.1.4
[INFO] [stderr]    Compiling marine-it-parser v0.6.5
[INFO] [stderr]    Compiling marine-it-generator v0.5.3
[INFO] [stderr]    Compiling marine-runtime v0.6.1
[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/marine-runtime-0.6.1/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(get_mut_unchecked)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/marine-runtime-0.6.1/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(new_uninit)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/marine-runtime-0.6.1/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `marine-runtime`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fc0ea274120d6db20c7f754cfd25b7d94b5a418c24baf8aff9d501d28bc5d4a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc0ea274120d6db20c7f754cfd25b7d94b5a418c24baf8aff9d501d28bc5d4a9", kill_on_drop: false }`
[INFO] [stdout] fc0ea274120d6db20c7f754cfd25b7d94b5a418c24baf8aff9d501d28bc5d4a9
