[INFO] updating cached repository https://github.com/racer-rust/racer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/racer-rust/racer
[INFO] [stderr]    bafc644..d66a9cf  master     -> master
[INFO] [stderr]  * [new tag]         v2.1.28    -> v2.1.28
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d66a9cf9133aff7488011aa543e8bfce4b6d2dd4
[INFO] checking racer-rust/racer against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracer-rust%2Fracer" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/racer-rust/racer on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/racer-rust/racer
[INFO] removed workspace from git repo https://github.com/racer-rust/racer
[INFO] removed path dependency racer-cargo-metadata from git repo https://github.com/racer-rust/racer
[INFO] removed path dependency racer-testutils from git repo https://github.com/racer-rust/racer
[INFO] finished tweaking git repo https://github.com/racer-rust/racer
[INFO] tweaked toml for git repo https://github.com/racer-rust/racer written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/racer-rust/racer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0ea4a2016f7043a77ac0749f597d429c8aa700395bdfbb92378c590ac485759c
[INFO] running `"docker" "start" "-a" "0ea4a2016f7043a77ac0749f597d429c8aa700395bdfbb92378c590ac485759c"`
[INFO] [stderr]    Compiling rustc-rayon-core v0.2.0
[INFO] [stderr]    Compiling rustc-rayon v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking rustc-ap-graphviz v606.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v606.0.0
[INFO] [stderr]    Compiling rustc-ap-syntax v606.0.0
[INFO] [stderr]     Checking annotate-snippets v0.6.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v606.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking jobserver v0.1.17
[INFO] [stderr]     Checking ena v0.13.1
[INFO] [stderr]     Checking rustc-ap-serialize v606.0.0
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v606.0.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking racer-interner v0.1.0
[INFO] [stderr]     Checking rls-span v0.5.2
[INFO] [stderr]     Checking rustc-ap-rustc_index v606.0.0
[INFO] [stderr]     Checking racer-cargo-metadata v0.1.1
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v606.0.0
[INFO] [stderr]     Checking rustc-ap-arena v606.0.0
[INFO] [stderr]     Checking rustc-ap-syntax_pos v606.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v606.0.0
[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-606.0.0/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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this 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" "0ea4a2016f7043a77ac0749f597d429c8aa700395bdfbb92378c590ac485759c"`
[INFO] running `"docker" "rm" "-f" "0ea4a2016f7043a77ac0749f597d429c8aa700395bdfbb92378c590ac485759c"`
[INFO] [stdout] 0ea4a2016f7043a77ac0749f597d429c8aa700395bdfbb92378c590ac485759c