[INFO] cloning repository https://github.com/rust-lang-nursery/rls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/rls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 838a83425b867bb0a6434216da75b01478eff160
[INFO] testing rust-lang-nursery/rls against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frls" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang-nursery/rls on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rust-lang-nursery/rls
[INFO] finished tweaking git repo https://github.com/rust-lang-nursery/rls
[INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/rls written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang-nursery/rls already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/cargo`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/rust-clippy`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/rustfmt`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rls-data v0.19.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v718.0.0
[INFO] [stderr]   Downloaded lsp-codec v0.2.0
[INFO] [stderr]   Downloaded git2 v0.13.17
[INFO] [stderr]   Downloaded jsonrpc-ipc-server v17.0.1
[INFO] [stderr]   Downloaded rustc-rayon v0.3.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lint_defs v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v718.0.0
[INFO] [stderr]   Downloaded if_chain v1.0.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v718.0.0
[INFO] [stderr]   Downloaded libssh2-sys v0.2.21
[INFO] [stderr]   Downloaded stacker v0.1.13
[INFO] [stderr]   Downloaded libgit2-sys v0.12.18+1.1.0
[INFO] [stderr]   Downloaded jsonrpc-pubsub v17.0.0
[INFO] [stderr]   Downloaded lsp-types v0.60.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v718.0.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v718.0.0
[INFO] [stderr]   Downloaded parity-tokio-ipc v0.8.0
[INFO] [stderr]   Downloaded fst v0.4.5
[INFO] [stderr]   Downloaded rls-span v0.5.4
[INFO] [stderr]   Downloaded rustc_tools_util v0.2.0
[INFO] [stderr]   Downloaded racer v2.1.47
[INFO] [stderr]   Downloaded jsonrpc-server-utils v17.0.0
[INFO] [stderr]   Downloaded rls-vfs v0.8.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v718.0.0
[INFO] [stderr]   Downloaded measureme v9.1.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v718.0.0
[INFO] [stderr]   Downloaded jsonrpc-client-transports v17.0.0
[INFO] [stderr]   Downloaded jsonrpc-core-client v17.0.0
[INFO] [stderr]   Downloaded memmap2 v0.2.2
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v718.0.0
[INFO] [stderr]   Downloaded rustc-semver v1.1.0
[INFO] [stderr]   Downloaded sized-chunks v0.6.4
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v718.0.0
[INFO] [stderr]   Downloaded ordslice v0.3.0
[INFO] [stderr]   Downloaded termize v0.1.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v718.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v718.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", 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] 0defabd2be1f2068cde8570d0a0458a6764958b1a93d79d958e179c75b5fcd4f
[INFO] running `Command { std: "docker" "start" "-a" "0defabd2be1f2068cde8570d0a0458a6764958b1a93d79d958e179c75b5fcd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0defabd2be1f2068cde8570d0a0458a6764958b1a93d79d958e179c75b5fcd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0defabd2be1f2068cde8570d0a0458a6764958b1a93d79d958e179c75b5fcd4f", kill_on_drop: false }`
[INFO] [stdout] 0defabd2be1f2068cde8570d0a0458a6764958b1a93d79d958e179c75b5fcd4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] d0aaa728bc3aab60bce5add3d9f849b6e58bd5c14760729b3675c9baa94d3db7
[INFO] running `Command { std: "docker" "start" "-a" "d0aaa728bc3aab60bce5add3d9f849b6e58bd5c14760729b3675c9baa94d3db7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling smallvec v1.6.1
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[INFO] [stderr]    Compiling either v1.6.1
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[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.22
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[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.12
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-sink v0.3.12
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[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling futures v0.1.30
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
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[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling futures-io v0.3.12
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[INFO] [stderr]    Compiling winapi v0.3.9
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[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v718.0.0
[INFO] [stderr]    Compiling humantime v2.1.0
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[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling fst v0.4.5
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.37 (https://github.com/rust-lang/rustfmt?rev=28460e1e9aff317fa1bbca95b22421e7ccd7723d#28460e1e)
[INFO] [stderr]    Compiling rustc_tools_util v0.2.0
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling shell-escape v0.1.5
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[INFO] [stderr]    Compiling generic-array v0.14.4
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[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling futures-task v0.3.12
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[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling rls v1.41.0 (/opt/rustwide/workdir)
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[INFO] [stderr]    Compiling crc32fast v1.2.1
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[INFO] [stderr]    Compiling ena v0.14.0
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[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
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[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling socket2 v0.3.19
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[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
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[INFO] [stderr]    Compiling termize v0.1.1
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
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[INFO] [stderr]    Compiling rustc-ap-rustc_serialize v718.0.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]    Compiling mio v0.6.23
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[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
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[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling term v0.6.1
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[INFO] [stderr]    Compiling md-5 v0.9.1
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[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling rustc-rayon v0.3.1
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[INFO] [stderr]    Compiling env_logger v0.7.1
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[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling psm v0.1.12
[INFO] [stderr]    Compiling stacker v0.1.13
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]    Compiling curl-sys v0.4.40+curl-7.75.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling libgit2-sys v0.12.18+1.1.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling sized-chunks v0.6.4
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling cargo v0.54.0 (https://github.com/rust-lang/cargo?rev=8dd533662007374412f460b4e442d3f8c193bff9#8dd53366)
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling tracing-attributes v0.1.12
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v718.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling rustfmt-config_proc_macro v0.2.0 (https://github.com/rust-lang/rustfmt?rev=28460e1e9aff317fa1bbca95b22421e7ccd7723d#28460e1e)
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling cargo-util v0.1.0 (https://github.com/rust-lang/cargo?rev=8dd533662007374412f460b4e442d3f8c193bff9#8dd53366)
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling tracing v0.1.23
[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 tokio-util v0.3.1
[INFO] [stderr]    Compiling rustc-ap-rustc_span v718.0.0
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling parity-tokio-ipc v0.8.0
[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`
[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" "d0aaa728bc3aab60bce5add3d9f849b6e58bd5c14760729b3675c9baa94d3db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0aaa728bc3aab60bce5add3d9f849b6e58bd5c14760729b3675c9baa94d3db7", kill_on_drop: false }`
[INFO] [stdout] d0aaa728bc3aab60bce5add3d9f849b6e58bd5c14760729b3675c9baa94d3db7