[INFO] fetching crate mbedtls 0.4.0...
[INFO] checking mbedtls-0.4.0 against nightly-2019-10-27 for pr-65897
[INFO] extracting crate mbedtls 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mbedtls 0.4.0 on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mbedtls 0.4.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mbedtls 0.4.0
[INFO] tweaked toml for crates.io crate mbedtls 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate mbedtls 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bindgen v0.19.1
[INFO] [stderr]   Downloaded rc2 v0.3.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=allow" "-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" "+nightly-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 78fff0d8026f2aa76884ffb073999941ef6acaf71c410f5d63a50611d00c7251
[INFO] running `"docker" "start" "-a" "78fff0d8026f2aa76884ffb073999941ef6acaf71c410f5d63a50611d00c7251"`
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]     Checking yasna v0.2.2
[INFO] [stderr]    Compiling clang-sys v0.11.1
[INFO] [stderr]    Compiling syntex_pos v0.38.0
[INFO] [stderr]    Compiling mbedtls v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking serde_cbor v0.6.1
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling syntex_errors v0.38.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling syntex_syntax v0.38.0
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr] error[E0502]: cannot borrow `cx.parse_sess.span_diagnostic` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.38.0/src/ext/expand.rs:1061:25
[INFO] [stderr]      |
[INFO] [stderr] 1051 |         let mut expander = MacroExpander::new(&mut cx);
[INFO] [stderr]      |                                               ------- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1061 |         let err_count = cx.parse_sess.span_diagnostic.err_count();
[INFO] [stderr]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stderr] 1062 |         let mut ret = expander.fold_crate(c);
[INFO] [stderr]      |                       -------- mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: could not compile `syntex_syntax`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "78fff0d8026f2aa76884ffb073999941ef6acaf71c410f5d63a50611d00c7251"`
[INFO] running `"docker" "rm" "-f" "78fff0d8026f2aa76884ffb073999941ef6acaf71c410f5d63a50611d00c7251"`
[INFO] [stdout] 78fff0d8026f2aa76884ffb073999941ef6acaf71c410f5d63a50611d00c7251