[INFO] fetching crate ra_rustc_lexer 0.1.0-pre.3...
[INFO] testing ra_rustc_lexer-0.1.0-pre.3 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate ra_rustc_lexer 0.1.0-pre.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ra_rustc_lexer 0.1.0-pre.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 ra_rustc_lexer 0.1.0-pre.3
[INFO] finished tweaking crates.io crate ra_rustc_lexer 0.1.0-pre.3
[INFO] tweaked toml for crates.io crate ra_rustc_lexer 0.1.0-pre.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] 9596567c2f38c14943443b99335f930c7930ce0b1d7dab3b802f134b82ad7975
[INFO] running `"docker" "start" "-a" "9596567c2f38c14943443b99335f930c7930ce0b1d7dab3b802f134b82ad7975"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ra_rustc_lexer v0.1.0-pre.3 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `property` in `unicode`
[INFO] [stderr]    --> src/lib.rs:522:24
[INFO] [stderr]     |
[INFO] [stderr] 522 |         core::unicode::property::Pattern_White_Space(c)
[INFO] [stderr]     |                        ^^^^^^^^ could not find `property` in `unicode`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:43
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![cfg_attr(not(feature = "unicode-xid"), feature(unicode_internals))]
[INFO] [stderr]   |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_xid_start` found for type `char` in the current scope
[INFO] [stderr]    --> src/lib.rs:539:33
[INFO] [stderr]     |
[INFO] [stderr] 539 |             || (c > '\x7f' && c.is_xid_start())
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ method not found in `char`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_xid_continue` found for type `char` in the current scope
[INFO] [stderr]    --> src/lib.rs:558:33
[INFO] [stderr]     |
[INFO] [stderr] 558 |             || (c > '\x7f' && c.is_xid_continue())
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^ method not found in `char`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `ra_rustc_lexer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9596567c2f38c14943443b99335f930c7930ce0b1d7dab3b802f134b82ad7975"`
[INFO] running `"docker" "rm" "-f" "9596567c2f38c14943443b99335f930c7930ce0b1d7dab3b802f134b82ad7975"`
[INFO] [stdout] 9596567c2f38c14943443b99335f930c7930ce0b1d7dab3b802f134b82ad7975