[INFO] fetching crate racer 2.1.46...
[INFO] building racer-2.1.46 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate racer 2.1.46 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate racer 2.1.46 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/rust-toolchain
[INFO] started tweaking crates.io crate racer 2.1.46
[INFO] finished tweaking crates.io crate racer 2.1.46
[INFO] tweaked toml for crates.io crate racer 2.1.46 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate racer 2.1.46 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2563ec7ad3eb84c7427ff36e6c9cda1e3d22de5ec12144cd17710e2200f7a64a
[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" "2563ec7ad3eb84c7427ff36e6c9cda1e3d22de5ec12144cd17710e2200f7a64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2563ec7ad3eb84c7427ff36e6c9cda1e3d22de5ec12144cd17710e2200f7a64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2563ec7ad3eb84c7427ff36e6c9cda1e3d22de5ec12144cd17710e2200f7a64a", kill_on_drop: false }`
[INFO] [stdout] 2563ec7ad3eb84c7427ff36e6c9cda1e3d22de5ec12144cd17710e2200f7a64a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 439c5218eefa20f1e4fe20c8498e42753c3df4a46b9e5fb63ac96805657144ca
[INFO] running `Command { std: "docker" "start" "-a" "439c5218eefa20f1e4fe20c8498e42753c3df4a46b9e5fb63ac96805657144ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[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 cc v1.0.53
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[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 unicode-width v0.1.7
[INFO] [stderr]    Compiling arrayvec v0.7.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling rustc-ap-rustc_graphviz v718.0.0
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[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 regex-syntax v0.6.17
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v718.0.0
[INFO] [stderr]    Compiling humantime v2.0.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v718.0.0
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling tracing-core v0.1.15
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[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 aho-corasick v0.7.10
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling sha-1 v0.9.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling quote v1.0.3
[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 jobserver v0.1.21
[INFO] [stderr]    Compiling memmap2 v0.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termize v0.1.1
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.12
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling rustc-ap-rustc_serialize v718.0.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling measureme v9.1.0
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling rand v0.8.3
[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 rustc-ap-rustc_macros v718.0.0
[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 tracing v0.1.19
[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] [stderr]    Compiling rustc-ap-rustc_ast v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_feature v718.0.0
[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 racer-cargo-metadata v0.1.2
[INFO] [stderr]    Compiling rustc-ap-rustc_lint_defs v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast_pretty v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_errors v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_session v718.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_parse v718.0.0
[INFO] [stderr]    Compiling racer v2.1.46 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "439c5218eefa20f1e4fe20c8498e42753c3df4a46b9e5fb63ac96805657144ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439c5218eefa20f1e4fe20c8498e42753c3df4a46b9e5fb63ac96805657144ca", kill_on_drop: false }`
[INFO] [stdout] 439c5218eefa20f1e4fe20c8498e42753c3df4a46b9e5fb63ac96805657144ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2c3c0deaeb0773bc89fadbd12d98f168a2d732535676ba576c54fe6e4451e8c
[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" "d2c3c0deaeb0773bc89fadbd12d98f168a2d732535676ba576c54fe6e4451e8c", 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 arrayvec v0.5.2
[INFO] [stderr]    Compiling rustc-ap-rustc_graphviz v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_serialize v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_index v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_data_structures v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_arena v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_span v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v712.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_feature v712.0.0
[INFO] [stdout] error[E0658]: unsizing casts to types besides slices are not allowed in const fn
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_ast-712.0.0/src/ptr.rs:136:37
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 std::mem::transmute(NonNull::<[T; 0]>::dangling() as NonNull<[T]>)
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #64992 <https://github.com/rust-lang/rust/issues/64992> for more information
[INFO] [stdout]     = help: add `#![feature(const_fn_unsize)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_ast`
[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" "d2c3c0deaeb0773bc89fadbd12d98f168a2d732535676ba576c54fe6e4451e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c3c0deaeb0773bc89fadbd12d98f168a2d732535676ba576c54fe6e4451e8c", kill_on_drop: false }`
[INFO] [stdout] d2c3c0deaeb0773bc89fadbd12d98f168a2d732535676ba576c54fe6e4451e8c
