[INFO] fetching crate racer 2.1.34...
[INFO] checking racer-2.1.34 against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] extracting crate racer 2.1.34 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate racer 2.1.34 on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate racer 2.1.34
[INFO] finished tweaking crates.io crate racer 2.1.34
[INFO] tweaked toml for crates.io crate racer 2.1.34 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate racer 2.1.34 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "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] 80b312c5cfcd75d888fc4c44e10c71909f92118e6c3253cf3cd2adb1c4b6e0c6
[INFO] running `"docker" "start" "-a" "80b312c5cfcd75d888fc4c44e10c71909f92118e6c3253cf3cd2adb1c4b6e0c6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking rustc-ap-graphviz v654.0.0
[INFO] [stderr]     Checking rustc-ap-graphviz v659.0.0
[INFO] [stderr]     Checking annotate-snippets v0.6.1
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v659.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v654.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v659.0.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling rustc-ap-rustc_target v654.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v654.0.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.9
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v654.0.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking ena v0.13.1
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rustc-ap-serialize v654.0.0
[INFO] [stderr]     Checking rustc-ap-serialize v659.0.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[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 getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking measureme v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rustc-rayon-core v0.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rustc-rayon v0.3.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v654.0.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v659.0.0
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[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v654.0.0
[INFO] [stderr]     Checking rustc-ap-arena v654.0.0
[INFO] [stderr]     Checking rustc-ap-arena v659.0.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v659.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v654.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]     Checking rustc-ap-rustc_span v654.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v659.0.0
[INFO] [stderr] error[E0407]: method `replace_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_zero` is not a member of trait `std::iter::Step`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_zero` is not a member of trait `std::iter::Step`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `replace_zero` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_one` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `add_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `sub_usize` is not a member of trait `std::iter::Step`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^ not a member of trait `std::iter::Step`
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0200]: the trait `std::iter::Step` requires an `unsafe impl` declaration
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / rustc_index::newtype_index! {
[INFO] [stderr] 12 | |     pub struct CrateId {
[INFO] [stderr] 13 | |         ENCODABLE = custom
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0200]: the trait `std::iter::Step` requires an `unsafe impl` declaration
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/def_id.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | / rustc_index::newtype_index! {
[INFO] [stderr] 119 | |     /// A DefIndex is an index into the hir-map for a crate, identifying a
[INFO] [stderr] 120 | |     /// particular definition. It should really be considered an interned
[INFO] [stderr] 121 | |     /// shorthand for a particular DefPath.
[INFO] [stderr] ...   |
[INFO] [stderr] 128 | |     }
[INFO] [stderr] 129 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0200]: the trait `std::iter::Step` requires an `unsafe impl` declaration
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_span-654.0.0/symbol.rs:1029:1
[INFO] [stderr]      |
[INFO] [stderr] 1029 | / rustc_index::newtype_index! {
[INFO] [stderr] 1030 | |     pub struct SymbolIndex { .. }
[INFO] [stderr] 1031 | | }
[INFO] [stderr]      | |_^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 21 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0200, E0407.
[INFO] [stderr] For more information about an error, try `rustc --explain E0200`.
[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 `"docker" "inspect" "80b312c5cfcd75d888fc4c44e10c71909f92118e6c3253cf3cd2adb1c4b6e0c6"`
[INFO] running `"docker" "rm" "-f" "80b312c5cfcd75d888fc4c44e10c71909f92118e6c3253cf3cd2adb1c4b6e0c6"`
[INFO] [stdout] 80b312c5cfcd75d888fc4c44e10c71909f92118e6c3253cf3cd2adb1c4b6e0c6