[INFO] fetching crate racer 2.1.45...
[INFO] checking racer-2.1.45 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate racer 2.1.45 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate racer 2.1.45 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/rust-toolchain
[INFO] started tweaking crates.io crate racer 2.1.45
[INFO] finished tweaking crates.io crate racer 2.1.45
[INFO] tweaked toml for crates.io crate racer 2.1.45 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate racer 2.1.45 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v705.0.0
[INFO] [stderr]   Downloaded psm v0.1.8
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v705.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v705.0.0
[INFO] [stderr]   Downloaded racer v2.1.44
[INFO] [stderr]   Downloaded racer-testutils v0.1.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lint_defs v705.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bda830d707ad62d49a5a54a02e498fbdf983288753e52d8e0195b51cf866577
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3bda830d707ad62d49a5a54a02e498fbdf983288753e52d8e0195b51cf866577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bda830d707ad62d49a5a54a02e498fbdf983288753e52d8e0195b51cf866577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bda830d707ad62d49a5a54a02e498fbdf983288753e52d8e0195b51cf866577", kill_on_drop: false }`
[INFO] [stdout] 3bda830d707ad62d49a5a54a02e498fbdf983288753e52d8e0195b51cf866577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c28184c883eeca4f042ec91c683f6c3f8b6b4981e9a4933f8498ff9719a5f0e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0c28184c883eeca4f042ec91c683f6c3f8b6b4981e9a4933f8498ff9719a5f0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v705.0.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v705.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.12
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v705.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v712.0.0
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking tracing-core v0.1.15
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking rustc-ap-rustc_arena v705.0.0
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking perf-event-open-sys v1.0.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking jobserver v0.1.21
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termize v0.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v705.0.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking measureme v9.1.0
[INFO] [stderr]     Checking rustc-rayon v0.3.1
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v705.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking rustc-ap-rustc_index v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v705.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v705.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_arena v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v712.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v705.0.0
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<Fingerprint>` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-705.0.0/src/lib.rs:2003:48
[INFO] [stdout]      |
[INFO] [stdout] 2003 |                 cache[index].replace(sub_hash).expect_none("Cache slot was filled");
[INFO] [stdout]      |                                                ^^^^^^^^^^^ method not found in `Option<Fingerprint>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<u32>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-705.0.0/src/hygiene.rs:121:54
[INFO] [stdout]     |
[INFO] [stdout] 121 |             expn_data.orig_id.replace(self.as_u32()).expect_none("orig_id should be None");
[INFO] [stdout]     |                                                      ^^^^^^^^^^^ method not found in `Option<u32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<u32>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-705.0.0/src/hygiene.rs:205:42
[INFO] [stdout]     |
[INFO] [stdout] 205 |             data.orig_id.replace(raw_id).expect_none("orig_id should be None");
[INFO] [stdout]     |                                          ^^^^^^^^^^^ method not found in `Option<u32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<&u32>` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-705.0.0/src/hygiene.rs:1421:22
[INFO] [stdout]      |
[INFO] [stdout] 1421 |                     .expect_none("Hash collision after disambiguator update!");
[INFO] [stdout]      |                      ^^^^^^^^^^^ method not found in `Option<&u32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_span`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0c28184c883eeca4f042ec91c683f6c3f8b6b4981e9a4933f8498ff9719a5f0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c28184c883eeca4f042ec91c683f6c3f8b6b4981e9a4933f8498ff9719a5f0e", kill_on_drop: false }`
[INFO] [stdout] 0c28184c883eeca4f042ec91c683f6c3f8b6b4981e9a4933f8498ff9719a5f0e