[INFO] updating cached repository https://github.com/estk/xmlschemer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e64a172284c43b7dc1d1978a9620cf6e3cfdf084
[INFO] checking estk/xmlschemer against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Festk%2Fxmlschemer" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/estk/xmlschemer on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/estk/xmlschemer
[INFO] removed path dependency serde-xml-rs from git repo https://github.com/estk/xmlschemer
[INFO] finished tweaking git repo https://github.com/estk/xmlschemer
[INFO] tweaked toml for git repo https://github.com/estk/xmlschemer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/estk/xmlschemer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 013d99e35d0479d0367b028a742d315791a605301f688c659dc9841429b91070
[INFO] running `"docker" "start" "-a" "013d99e35d0479d0367b028a742d315791a605301f688c659dc9841429b91070"`
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.0
[INFO] [stderr]     Checking rustc-ap-graphviz v610.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v610.0.0
[INFO] [stderr]    Compiling rustc-ap-syntax v610.0.0
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.10
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking if_chain v0.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking annotate-snippets v0.6.1
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v610.0.0
[INFO] [stderr]     Checking jobserver v0.1.17
[INFO] [stderr]     Checking ena v0.13.1
[INFO] [stderr]     Checking rustc-ap-serialize v610.0.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v610.0.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde-xml-rs v0.3.1
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]     Checking cargo_metadata v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rustc-ap-rustc_index v610.0.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rustc-rayon v0.3.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v610.0.0
[INFO] [stderr]     Checking rustc-ap-arena v610.0.0
[INFO] [stderr]     Checking rustc-ap-syntax_pos v610.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v610.0.0
[INFO] [stderr] error[E0407]: method `mixed_site` is not a member of trait `server::Span`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-610.0.0/ext/proc_macro_server.rs:669:5
[INFO] [stderr]     |
[INFO] [stderr] 669 | /     fn mixed_site(&mut self) -> Self::Span {
[INFO] [stderr] 670 | |         self.mixed_site
[INFO] [stderr] 671 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `server::Span`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'mem_take'
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-610.0.0/parse/parser.rs:1535:22
[INFO] [stderr]      |
[INFO] [stderr] 1535 |                 Some(mem::take(list))
[INFO] [stderr]      |                      ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/61129
[INFO] [stderr]      = help: add `#![feature(mem_take)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'mem_take'
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-610.0.0/parse/parser.rs:1558:49
[INFO] [stderr]      |
[INFO] [stderr] 1558 |             LastToken::Collecting(ref mut v) => mem::take(v),
[INFO] [stderr]      |                                                 ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/61129
[INFO] [stderr]      = help: add `#![feature(mem_take)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'mem_take'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-610.0.0/ext/expand.rs:351:31
[INFO] [stderr]     |
[INFO] [stderr] 351 |                 invocations = mem::take(&mut undetermined_invocations);
[INFO] [stderr]     |                               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/61129
[INFO] [stderr]     = help: add `#![feature(mem_take)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'mem_take'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-syntax-610.0.0/ext/mbe/transcribe.rs:275:35
[INFO] [stderr]     |
[INFO] [stderr] 275 |                 result_stack.push(mem::take(&mut result));
[INFO] [stderr]     |                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/61129
[INFO] [stderr]     = help: add `#![feature(mem_take)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0407, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0407`.
[INFO] [stderr] error: could not compile `rustc-ap-syntax`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "013d99e35d0479d0367b028a742d315791a605301f688c659dc9841429b91070"`
[INFO] running `"docker" "rm" "-f" "013d99e35d0479d0367b028a742d315791a605301f688c659dc9841429b91070"`
[INFO] [stdout] 013d99e35d0479d0367b028a742d315791a605301f688c659dc9841429b91070