[INFO] crate enum_stream_codegen 0.1.0 is already in cache
[INFO] testing enum_stream_codegen-0.1.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate enum_stream_codegen 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate enum_stream_codegen 0.1.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enum_stream_codegen 0.1.0
[INFO] finished tweaking crates.io crate enum_stream_codegen 0.1.0
[INFO] tweaked toml for crates.io crate enum_stream_codegen 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2d7d00fa3006c03873706e80b9984477450e71cdc6f55159afa2838767668a8
[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" "a2d7d00fa3006c03873706e80b9984477450e71cdc6f55159afa2838767668a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2d7d00fa3006c03873706e80b9984477450e71cdc6f55159afa2838767668a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d7d00fa3006c03873706e80b9984477450e71cdc6f55159afa2838767668a8", kill_on_drop: false }`
[INFO] [stdout] a2d7d00fa3006c03873706e80b9984477450e71cdc6f55159afa2838767668a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c28d7067ec72bc2c603d846085d69b3d6b2d3b9c2b1285c1fa73d611885c551
[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" "0c28d7067ec72bc2c603d846085d69b3d6b2d3b9c2b1285c1fa73d611885c551", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling panini_common v0.0.0
[INFO] [stderr]    Compiling enum_coder v0.0.0
[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/enum_coder-0.0.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_def_site, bind_by_move_pattern_guards)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `enum_coder`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0c28d7067ec72bc2c603d846085d69b3d6b2d3b9c2b1285c1fa73d611885c551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c28d7067ec72bc2c603d846085d69b3d6b2d3b9c2b1285c1fa73d611885c551", kill_on_drop: false }`
[INFO] [stdout] 0c28d7067ec72bc2c603d846085d69b3d6b2d3b9c2b1285c1fa73d611885c551