[INFO] fetching crate loalang 0.1.20...
[INFO] documenting loalang-0.1.20 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate loalang 0.1.20 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate loalang 0.1.20 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate loalang 0.1.20
[INFO] finished tweaking crates.io crate loalang 0.1.20
[INFO] tweaked toml for crates.io crate loalang 0.1.20 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate loalang 0.1.20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5e3aad8ed62ebbafda85ae588d1d2a9332b2a84ab7efa35ed89e7556833e538
[INFO] running `Command { std: "docker" "start" "-a" "c5e3aad8ed62ebbafda85ae588d1d2a9332b2a84ab7efa35ed89e7556833e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5e3aad8ed62ebbafda85ae588d1d2a9332b2a84ab7efa35ed89e7556833e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e3aad8ed62ebbafda85ae588d1d2a9332b2a84ab7efa35ed89e7556833e538", kill_on_drop: false }`
[INFO] [stdout] c5e3aad8ed62ebbafda85ae588d1d2a9332b2a84ab7efa35ed89e7556833e538
[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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17b3b4d23a71e8a574580afcf06564578bb06d4c1b3a0e19b2afd6541c2511b0
[INFO] running `Command { std: "docker" "start" "-a" "17b3b4d23a71e8a574580afcf06564578bb06d4c1b3a0e19b2afd6541c2511b0", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking peekmore v0.4.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking ngrammatic v0.3.1
[INFO] [stderr]     Checking strum v0.17.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking fraction v0.6.2
[INFO] [stderr]  Documenting loalang v0.1.20 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/lib/generation/generation_error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:816:5
[INFO] [stdout]     |
[INFO] [stdout] 816 |     type Ok = Type;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:817:5
[INFO] [stdout]     |
[INFO] [stdout] 817 |     type Error = std::option::NoneError;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `into_result` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:819:5
[INFO] [stdout]     |
[INFO] [stdout] 819 | /     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout] 820 | |         Ok(self)
[INFO] [stdout] 821 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:823:5
[INFO] [stdout]     |
[INFO] [stdout] 823 | /     fn from_error(_v: Self::Error) -> Self {
[INFO] [stdout] 824 | |         Type::Unknown
[INFO] [stdout] 825 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]    --> src/lib/semantics/types.rs:827:5
[INFO] [stdout]     |
[INFO] [stdout] 827 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 828 | |         v
[INFO] [stdout] 829 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     type Ok = TypeAssignability;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     type Error = std::option::NoneError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `into_result` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout] 56 | |         Ok(self)
[INFO] [stdout] 57 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     fn from_error(_v: Self::Error) -> Self {
[INFO] [stdout] 60 | |         // We gracefully make a NoneError into
[INFO] [stdout] 61 | |         // a valid type assignability, because
[INFO] [stdout] 62 | |         // it occurs when navigating the AST
[INFO] [stdout] ...  |
[INFO] [stdout] 65 | |         TypeAssignability::Valid
[INFO] [stdout] 66 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `std::ops::Try`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 69 | |         v
[INFO] [stdout] 70 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `std::ops::Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]    --> src/lib/semantics/types.rs:817:31
[INFO] [stdout]     |
[INFO] [stdout] 817 |     type Error = std::option::NoneError;
[INFO] [stdout]     |                               ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/lib/semantics/type_assignability.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |     type Error = std::option::NoneError;
[INFO] [stdout]    |                               ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns, try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 15 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0407, E0412, E0432, E0437, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `loalang`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name loa src/lib/mod.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b2fa49a732fddf6e -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-ac1094b78b631e66.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-02461b99b5663096.rmeta --extern fraction=/opt/rustwide/target/debug/deps/libfraction-a81e555da17f1489.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-246700c1f59f0e28.rmeta --extern matches=/opt/rustwide/target/debug/deps/libmatches-45481945419b9473.rmeta --extern ngrammatic=/opt/rustwide/target/debug/deps/libngrammatic-e6a44f4eb036f0ce.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-857f5fc066a0fe55.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-20c72176eefef6bc.rmeta --extern peekmore=/opt/rustwide/target/debug/deps/libpeekmore-5ccd4601974a7c4a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a9dc16bdd67b5bda.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-493f9929be4c75bb.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-690a06ebd2198b05.so --cap-lints=warn --crate-version 0.1.20` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "17b3b4d23a71e8a574580afcf06564578bb06d4c1b3a0e19b2afd6541c2511b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b3b4d23a71e8a574580afcf06564578bb06d4c1b3a0e19b2afd6541c2511b0", kill_on_drop: false }`
[INFO] [stdout] 17b3b4d23a71e8a574580afcf06564578bb06d4c1b3a0e19b2afd6541c2511b0