[INFO] cloning repository https://github.com/jwilm/racerd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jwilm/racerd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwilm%2Fracerd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwilm%2Fracerd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3d380b9a1d3f3b67286d60465746bc89fea9098
[INFO] documenting jwilm/racerd against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwilm%2Fracerd" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jwilm/racerd on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jwilm/racerd
[INFO] finished tweaking git repo https://github.com/jwilm/racerd
[INFO] tweaked toml for git repo https://github.com/jwilm/racerd written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/jwilm/racerd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bce059ca9c5660db19fe9078211f2c09e0c9a0bd7d3b6943d9d4ae7e4bb66ad1
[INFO] running `Command { std: "docker" "start" "-a" "bce059ca9c5660db19fe9078211f2c09e0c9a0bd7d3b6943d9d4ae7e4bb66ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bce059ca9c5660db19fe9078211f2c09e0c9a0bd7d3b6943d9d4ae7e4bb66ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce059ca9c5660db19fe9078211f2c09e0c9a0bd7d3b6943d9d4ae7e4bb66ad1", kill_on_drop: false }`
[INFO] [stdout] bce059ca9c5660db19fe9078211f2c09e0c9a0bd7d3b6943d9d4ae7e4bb66ad1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31adf445ec929cba7be1dfec321783763377834cfbe945bd14485d8c1260e770
[INFO] running `Command { std: "docker" "start" "-a" "31adf445ec929cba7be1dfec321783763377834cfbe945bd14485d8c1260e770", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling rustc-rayon-core v0.2.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rustc-rayon v0.2.0
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking safemem v0.3.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]     Checking rustc-ap-graphviz v546.0.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling rustc-ap-rustc_target v546.0.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling rustc-ap-syntax v546.0.0
[INFO] [stderr]     Checking annotate-snippets v0.6.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v546.0.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-0.6.10/lib.rs:33:32
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))]
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-0.6.10/lib.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-546.0.0/lib.rs:277:1
[INFO] [stdout]     |
[INFO] [stdout] 277 | #![feature(rustc_private, nll)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-utils-0.6.6/src/lib.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![cfg_attr(feature = "nightly", feature(cfg_target_has_atomic))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-graphviz`
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `property` in `unicode`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_lexer-546.0.0/src/lib.rs:672:24
[INFO] [stdout]     |
[INFO] [stdout] 672 |         core::unicode::property::Pattern_White_Space(c)
[INFO] [stdout]     |                        ^^^^^^^^ could not find `property` in `unicode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_lexer-546.0.0/src/lib.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(not(feature = "unicode-xid"), feature(unicode_internals))]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_xid_start` found for type `char` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_lexer-546.0.0/src/lib.rs:689:33
[INFO] [stdout]     |
[INFO] [stdout] 689 |             || (c > '\x7f' && c.is_xid_start())
[INFO] [stdout]     |                                 ^^^^^^^^^^^^ method not found in `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_xid_continue` found for type `char` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_lexer-546.0.0/src/lib.rs:708:33
[INFO] [stdout]     |
[INFO] [stdout] 708 |             || (c > '\x7f' && c.is_xid_continue())
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^ method not found in `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.1.5/src/lib.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.1.5/src/lib.rs:88:34
[INFO] [stdout]    |
[INFO] [stdout] 88 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "31adf445ec929cba7be1dfec321783763377834cfbe945bd14485d8c1260e770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31adf445ec929cba7be1dfec321783763377834cfbe945bd14485d8c1260e770", kill_on_drop: false }`
[INFO] [stdout] 31adf445ec929cba7be1dfec321783763377834cfbe945bd14485d8c1260e770
