[INFO] fetching crate racer 2.1.48...
[INFO] testing racer-2.1.48 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate racer 2.1.48 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate racer 2.1.48 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-111/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate racer 2.1.48
[INFO] finished tweaking crates.io crate racer 2.1.48
[INFO] tweaked toml for crates.io crate racer 2.1.48 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate crates.io crate racer 2.1.48 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9d7004e27eba4fbbf6a7e824b868a6e9e1a211d6f476349d56a58f419dedf5e
[INFO] running `Command { std: "docker" "start" "-a" "a9d7004e27eba4fbbf6a7e824b868a6e9e1a211d6f476349d56a58f419dedf5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9d7004e27eba4fbbf6a7e824b868a6e9e1a211d6f476349d56a58f419dedf5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d7004e27eba4fbbf6a7e824b868a6e9e1a211d6f476349d56a58f419dedf5e", kill_on_drop: false }`
[INFO] [stdout] a9d7004e27eba4fbbf6a7e824b868a6e9e1a211d6f476349d56a58f419dedf5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d128255d0dad22e9a4b5021a4f7fddff4837b47f022bd784481e08840c96091
[INFO] running `Command { std: "docker" "start" "-a" "2d128255d0dad22e9a4b5021a4f7fddff4837b47f022bd784481e08840c96091", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling arrayvec v0.7.0
[INFO] [stderr]    Compiling rustc-ap-rustc_graphviz v722.0.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling annotate-snippets v0.8.0
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v722.0.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling humantime v2.0.0
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling tracing-core v0.1.15
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v722.0.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.12
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling perf-event-open-sys v1.0.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling memmap2 v0.2.2
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termize v0.1.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rustc-ap-rustc_serialize v722.0.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling measureme v9.1.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling sha-1 v0.9.2
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling rustc-rayon v0.3.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v722.0.0
[INFO] [stderr]    Compiling tracing v0.1.19
[INFO] [stderr]    Compiling rustc-ap-rustc_index v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_data_structures v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_arena v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_span v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_feature v722.0.0
[INFO] [stderr]    Compiling serde_json v1.0.50
[INFO] [stderr]    Compiling racer-interner v0.1.0
[INFO] [stderr]    Compiling rls-span v0.5.2
[INFO] [stderr]    Compiling rustc-ap-rustc_lint_defs v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast_pretty v722.0.0
[INFO] [stderr]    Compiling racer-cargo-metadata v0.1.2
[INFO] [stderr]    Compiling rustc-ap-rustc_errors v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_session v722.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_parse v722.0.0
[INFO] [stderr]    Compiling racer v2.1.48 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "2d128255d0dad22e9a4b5021a4f7fddff4837b47f022bd784481e08840c96091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d128255d0dad22e9a4b5021a4f7fddff4837b47f022bd784481e08840c96091", kill_on_drop: false }`
[INFO] [stdout] 2d128255d0dad22e9a4b5021a4f7fddff4837b47f022bd784481e08840c96091
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf6ef3ab715c873febbbb96731418e7a90dc7f40465b53bc595d5a88795b7813
[INFO] running `Command { std: "docker" "start" "-a" "bf6ef3ab715c873febbbb96731418e7a90dc7f40465b53bc595d5a88795b7813", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-ap-rustc_graphviz v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_serialize v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_index v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_data_structures v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_arena v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_span v718.0.0
[INFO] [stdout] error[E0199]: implementing the trait `Step` is not unsafe
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-718.0.0/src/def_id.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / rustc_index::newtype_index! {
[INFO] [stdout] 13 | |     pub struct CrateId {
[INFO] [stdout] 14 | |         ENCODABLE = custom
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::newtype_index` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0199]: implementing the trait `Step` is not unsafe
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-718.0.0/src/def_id.rs:208:1
[INFO] [stdout]     |
[INFO] [stdout] 208 | / rustc_index::newtype_index! {
[INFO] [stdout] 209 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stdout] 210 | |     /// particular definition. It should really be considered an interned
[INFO] [stdout] 211 | |     /// shorthand for a particular DefPath.
[INFO] [stdout] ...   |
[INFO] [stdout] 219 | |     }
[INFO] [stdout] 220 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::newtype_index` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0199]: implementing the trait `Step` is not unsafe
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-718.0.0/src/symbol.rs:1510:1
[INFO] [stdout]      |
[INFO] [stdout] 1510 | / rustc_index::newtype_index! {
[INFO] [stdout] 1511 | |     pub struct SymbolIndex { .. }
[INFO] [stdout] 1512 | | }
[INFO] [stdout]      | |_^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::newtype_index` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0199`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_span` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "bf6ef3ab715c873febbbb96731418e7a90dc7f40465b53bc595d5a88795b7813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf6ef3ab715c873febbbb96731418e7a90dc7f40465b53bc595d5a88795b7813", kill_on_drop: false }`
[INFO] [stdout] bf6ef3ab715c873febbbb96731418e7a90dc7f40465b53bc595d5a88795b7813