[INFO] crate yaiouom 0.1.3 is already in cache
[INFO] testing yaiouom-0.1.3 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate yaiouom 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate yaiouom 0.1.3 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate yaiouom 0.1.3
[INFO] finished tweaking crates.io crate yaiouom 0.1.3
[INFO] tweaked toml for crates.io crate yaiouom 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2ee6d74594fdedc003853a9a1132e91757041816433989d4d80ec6528204da5f
[INFO] running `"docker" "start" "-a" "2ee6d74594fdedc003853a9a1132e91757041816433989d4d80ec6528204da5f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling yaiouom v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stderr]   --> src/unit.rs:65:3
[INFO] [stderr]    |
[INFO] [stderr] 65 | #[rustc_yaiouom_check_unify_measure]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stderr]    --> src/unit.rs:156:7
[INFO] [stderr]     |
[INFO] [stderr] 156 |     #[rustc_yaiouom_check_unify]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stderr]    --> src/unit.rs:518:3
[INFO] [stderr]     |
[INFO] [stderr] 518 | #[rustc_yaiouom_combinator_dimensionless]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stderr]    --> src/unit.rs:548:3
[INFO] [stderr]     |
[INFO] [stderr] 548 | #[rustc_yaiouom_combinator_mul]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stderr]    --> src/unit.rs:569:3
[INFO] [stderr]     |
[INFO] [stderr] 569 | #[rustc_yaiouom_combinator_inv]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `rustc_yaiouom_check_unify_measure` in this scope
[INFO] [stderr]   --> src/unit.rs:65:3
[INFO] [stderr]    |
[INFO] [stderr] 65 | #[rustc_yaiouom_check_unify_measure]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `rustc_yaiouom_check_unify` in this scope
[INFO] [stderr]    --> src/unit.rs:156:7
[INFO] [stderr]     |
[INFO] [stderr] 156 |     #[rustc_yaiouom_check_unify]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `rustc_yaiouom_combinator_dimensionless` in this scope
[INFO] [stderr]    --> src/unit.rs:518:3
[INFO] [stderr]     |
[INFO] [stderr] 518 | #[rustc_yaiouom_combinator_dimensionless]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `rustc_yaiouom_combinator_mul` in this scope
[INFO] [stderr]    --> src/unit.rs:548:3
[INFO] [stderr]     |
[INFO] [stderr] 548 | #[rustc_yaiouom_combinator_mul]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `rustc_yaiouom_combinator_inv` in this scope
[INFO] [stderr]    --> src/unit.rs:569:3
[INFO] [stderr]     |
[INFO] [stderr] 569 | #[rustc_yaiouom_combinator_inv]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_attrs)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `yaiouom`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2ee6d74594fdedc003853a9a1132e91757041816433989d4d80ec6528204da5f"`
[INFO] running `"docker" "rm" "-f" "2ee6d74594fdedc003853a9a1132e91757041816433989d4d80ec6528204da5f"`
[INFO] [stdout] 2ee6d74594fdedc003853a9a1132e91757041816433989d4d80ec6528204da5f