[INFO] fetching crate unrest_tmp_syn 0.1.0...
[INFO] testing unrest_tmp_syn-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate unrest_tmp_syn 0.1.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate unrest_tmp_syn 0.1.0 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 crates.io crate unrest_tmp_syn 0.1.0
[INFO] finished tweaking crates.io crate unrest_tmp_syn 0.1.0
[INFO] tweaked toml for crates.io crate unrest_tmp_syn 0.1.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 1e86f6709c2f292efafc18c1b908d22d07bd556aff44ea88aa1fa0c8c257960b
[INFO] running `Command { std: "docker" "start" "-a" "1e86f6709c2f292efafc18c1b908d22d07bd556aff44ea88aa1fa0c8c257960b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e86f6709c2f292efafc18c1b908d22d07bd556aff44ea88aa1fa0c8c257960b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e86f6709c2f292efafc18c1b908d22d07bd556aff44ea88aa1fa0c8c257960b", kill_on_drop: false }`
[INFO] [stdout] 1e86f6709c2f292efafc18c1b908d22d07bd556aff44ea88aa1fa0c8c257960b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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=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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f207b278183d0f3a7e125b78eacd3664f2709e18df50ae90ac3c1f30d12692ae
[INFO] running `Command { std: "docker" "start" "-a" "f207b278183d0f3a7e125b78eacd3664f2709e18df50ae90ac3c1f30d12692ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.1.10
[INFO] [stderr]    Compiling unrest_tmp_quote v0.1.0
[INFO] [stderr]    Compiling unrest_tmp_synom v0.1.0
[INFO] [stderr]    Compiling unrest_tmp_syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:852:5
[INFO] [stdout]     |
[INFO] [stdout] 852 | /     /// ```ignore
[INFO] [stdout] 853 | |     /// <and> || <and> ...
[INFO] [stdout] 854 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:857:5
[INFO] [stdout]     |
[INFO] [stdout] 857 | /     /// ```ignore
[INFO] [stdout] 858 | |     /// <compare> && <compare> ...
[INFO] [stdout] 859 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:862:5
[INFO] [stdout]     |
[INFO] [stdout] 862 | /     /// ```ignore
[INFO] [stdout] 863 | |     /// <bitor> == <bitor> ...
[INFO] [stdout] 864 | |     /// <bitor> != <bitor> ...
[INFO] [stdout] 865 | |     /// <bitor> >= <bitor> ...
[INFO] [stdout] ...   |
[INFO] [stdout] 871 | |     /// NOTE: This operator appears to be parsed as left-associative, but errors
[INFO] [stdout] 872 | |     /// if it is used in a non-associative manner.
[INFO] [stdout]     | |_____---------------------------------------------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:894:5
[INFO] [stdout]     |
[INFO] [stdout] 894 | /     /// ```ignore
[INFO] [stdout] 895 | |     /// <bitxor> | <bitxor> ...
[INFO] [stdout] 896 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:904:5
[INFO] [stdout]     |
[INFO] [stdout] 904 | /     /// ```ignore
[INFO] [stdout] 905 | |     /// <bitand> ^ <bitand> ...
[INFO] [stdout] 906 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 | /     /// ```ignore
[INFO] [stdout] 915 | |     /// <shift> & <shift> ...
[INFO] [stdout] 916 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:925:5
[INFO] [stdout]     |
[INFO] [stdout] 925 | /     /// ```ignore
[INFO] [stdout] 926 | |     /// <arith> << <arith> ...
[INFO] [stdout] 927 | |     /// <arith> >> <arith> ...
[INFO] [stdout] 928 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:935:5
[INFO] [stdout]     |
[INFO] [stdout] 935 | /     /// ```ignore
[INFO] [stdout] 936 | |     /// <term> + <term> ...
[INFO] [stdout] 937 | |     /// <term> - <term> ...
[INFO] [stdout] 938 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:945:5
[INFO] [stdout]     |
[INFO] [stdout] 945 | /     /// ```ignore
[INFO] [stdout] 946 | |     /// <cast> * <cast> ...
[INFO] [stdout] 947 | |     /// <cast> / <cast> ...
[INFO] [stdout] 948 | |     /// <cast> % <cast> ...
[INFO] [stdout] 949 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:958:5
[INFO] [stdout]     |
[INFO] [stdout] 958 | /     /// ```ignore
[INFO] [stdout] 959 | |     /// <unary> as <ty>
[INFO] [stdout] 960 | |     /// <unary> : <ty>
[INFO] [stdout] 961 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ty.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | /         /// In some positions, types may not contain the `+` character, to
[INFO] [stdout] 342 | |         /// disambiguate them. For example in the expression `1 as T`, T may not
[INFO] [stdout] 343 | |         /// contain a `+` character.
[INFO] [stdout] 344 | |         ///
[INFO] [stdout] 345 | |         /// This parser does not allow a `+`, while the default parser does.
[INFO] [stdout]     | |_________-------------------------------------------------------------------^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lifetime.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{:?} is not a valid lifetime name");
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{:?} is not a valid lifetime name", ...);
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{}", "{:?} is not a valid lifetime name");
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `Command { std: "docker" "inspect" "f207b278183d0f3a7e125b78eacd3664f2709e18df50ae90ac3c1f30d12692ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f207b278183d0f3a7e125b78eacd3664f2709e18df50ae90ac3c1f30d12692ae", kill_on_drop: false }`
[INFO] [stdout] f207b278183d0f3a7e125b78eacd3664f2709e18df50ae90ac3c1f30d12692ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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=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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4665a05a00a843ad70b3435c175b14c380b4f106be99a5171ff4db91c36a3cd1
[INFO] running `Command { std: "docker" "start" "-a" "4665a05a00a843ad70b3435c175b14c380b4f106be99a5171ff4db91c36a3cd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:852:5
[INFO] [stdout]     |
[INFO] [stdout] 852 | /     /// ```ignore
[INFO] [stdout] 853 | |     /// <and> || <and> ...
[INFO] [stdout] 854 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:857:5
[INFO] [stdout]     |
[INFO] [stdout] 857 | /     /// ```ignore
[INFO] [stdout] 858 | |     /// <compare> && <compare> ...
[INFO] [stdout] 859 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:862:5
[INFO] [stdout]     |
[INFO] [stdout] 862 | /     /// ```ignore
[INFO] [stdout] 863 | |     /// <bitor> == <bitor> ...
[INFO] [stdout] 864 | |     /// <bitor> != <bitor> ...
[INFO] [stdout] 865 | |     /// <bitor> >= <bitor> ...
[INFO] [stdout] ...   |
[INFO] [stdout] 871 | |     /// NOTE: This operator appears to be parsed as left-associative, but errors
[INFO] [stdout] 872 | |     /// if it is used in a non-associative manner.
[INFO] [stdout]     | |_____---------------------------------------------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:894:5
[INFO] [stdout]     |
[INFO] [stdout] 894 | /     /// ```ignore
[INFO] [stdout] 895 | |     /// <bitxor> | <bitxor> ...
[INFO] [stdout] 896 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:904:5
[INFO] [stdout]     |
[INFO] [stdout] 904 | /     /// ```ignore
[INFO] [stdout] 905 | |     /// <bitand> ^ <bitand> ...
[INFO] [stdout] 906 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 | /     /// ```ignore
[INFO] [stdout] 915 | |     /// <shift> & <shift> ...
[INFO] [stdout] 916 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:925:5
[INFO] [stdout]     |
[INFO] [stdout] 925 | /     /// ```ignore
[INFO] [stdout] 926 | |     /// <arith> << <arith> ...
[INFO] [stdout] 927 | |     /// <arith> >> <arith> ...
[INFO] [stdout] 928 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:935:5
[INFO] [stdout]     |
[INFO] [stdout] 935 | /     /// ```ignore
[INFO] [stdout] 936 | |     /// <term> + <term> ...
[INFO] [stdout] 937 | |     /// <term> - <term> ...
[INFO] [stdout] 938 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:945:5
[INFO] [stdout]     |
[INFO] [stdout] 945 | /     /// ```ignore
[INFO] [stdout] 946 | |     /// <cast> * <cast> ...
[INFO] [stdout] 947 | |     /// <cast> / <cast> ...
[INFO] [stdout] 948 | |     /// <cast> % <cast> ...
[INFO] [stdout] 949 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:958:5
[INFO] [stdout]     |
[INFO] [stdout] 958 | /     /// ```ignore
[INFO] [stdout] 959 | |     /// <unary> as <ty>
[INFO] [stdout] 960 | |     /// <unary> : <ty>
[INFO] [stdout] 961 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ty.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | /         /// In some positions, types may not contain the `+` character, to
[INFO] [stdout] 342 | |         /// disambiguate them. For example in the expression `1 as T`, T may not
[INFO] [stdout] 343 | |         /// contain a `+` character.
[INFO] [stdout] 344 | |         ///
[INFO] [stdout] 345 | |         /// This parser does not allow a `+`, while the default parser does.
[INFO] [stdout]     | |_________-------------------------------------------------------------------^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lifetime.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{:?} is not a valid lifetime name");
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{:?} is not a valid lifetime name", ...);
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{}", "{:?} is not a valid lifetime name");
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling extprim v1.7.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling syntex_pos v0.59.1
[INFO] [stderr]    Compiling syntex_errors v0.59.1
[INFO] [stderr]    Compiling syntex_syntax v0.59.1
[INFO] [stderr]    Compiling unrest_tmp_syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:852:5
[INFO] [stdout]     |
[INFO] [stdout] 852 | /     /// ```ignore
[INFO] [stdout] 853 | |     /// <and> || <and> ...
[INFO] [stdout] 854 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:857:5
[INFO] [stdout]     |
[INFO] [stdout] 857 | /     /// ```ignore
[INFO] [stdout] 858 | |     /// <compare> && <compare> ...
[INFO] [stdout] 859 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:862:5
[INFO] [stdout]     |
[INFO] [stdout] 862 | /     /// ```ignore
[INFO] [stdout] 863 | |     /// <bitor> == <bitor> ...
[INFO] [stdout] 864 | |     /// <bitor> != <bitor> ...
[INFO] [stdout] 865 | |     /// <bitor> >= <bitor> ...
[INFO] [stdout] ...   |
[INFO] [stdout] 871 | |     /// NOTE: This operator appears to be parsed as left-associative, but errors
[INFO] [stdout] 872 | |     /// if it is used in a non-associative manner.
[INFO] [stdout]     | |_____---------------------------------------------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:894:5
[INFO] [stdout]     |
[INFO] [stdout] 894 | /     /// ```ignore
[INFO] [stdout] 895 | |     /// <bitxor> | <bitxor> ...
[INFO] [stdout] 896 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:904:5
[INFO] [stdout]     |
[INFO] [stdout] 904 | /     /// ```ignore
[INFO] [stdout] 905 | |     /// <bitand> ^ <bitand> ...
[INFO] [stdout] 906 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 | /     /// ```ignore
[INFO] [stdout] 915 | |     /// <shift> & <shift> ...
[INFO] [stdout] 916 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:925:5
[INFO] [stdout]     |
[INFO] [stdout] 925 | /     /// ```ignore
[INFO] [stdout] 926 | |     /// <arith> << <arith> ...
[INFO] [stdout] 927 | |     /// <arith> >> <arith> ...
[INFO] [stdout] 928 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:935:5
[INFO] [stdout]     |
[INFO] [stdout] 935 | /     /// ```ignore
[INFO] [stdout] 936 | |     /// <term> + <term> ...
[INFO] [stdout] 937 | |     /// <term> - <term> ...
[INFO] [stdout] 938 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:945:5
[INFO] [stdout]     |
[INFO] [stdout] 945 | /     /// ```ignore
[INFO] [stdout] 946 | |     /// <cast> * <cast> ...
[INFO] [stdout] 947 | |     /// <cast> / <cast> ...
[INFO] [stdout] 948 | |     /// <cast> % <cast> ...
[INFO] [stdout] 949 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/expr.rs:958:5
[INFO] [stdout]     |
[INFO] [stdout] 958 | /     /// ```ignore
[INFO] [stdout] 959 | |     /// <unary> as <ty>
[INFO] [stdout] 960 | |     /// <unary> : <ty>
[INFO] [stdout] 961 | |     /// ```
[INFO] [stdout]     | |_____------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ty.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | /         /// In some positions, types may not contain the `+` character, to
[INFO] [stdout] 342 | |         /// disambiguate them. For example in the expression `1 as T`, T may not
[INFO] [stdout] 343 | |         /// contain a `+` character.
[INFO] [stdout] 344 | |         ///
[INFO] [stdout] 345 | |         /// This parser does not allow a `+`, while the default parser does.
[INFO] [stdout]     | |_________-------------------------------------------------------------------^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/lifetime.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{:?} is not a valid lifetime name");
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{:?} is not a valid lifetime name", ...);
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 50 |             panic!("{}", "{:?} is not a valid lifetime name");
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 37.35s
[INFO] running `Command { std: "docker" "inspect" "4665a05a00a843ad70b3435c175b14c380b4f106be99a5171ff4db91c36a3cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4665a05a00a843ad70b3435c175b14c380b4f106be99a5171ff4db91c36a3cd1", kill_on_drop: false }`
[INFO] [stdout] 4665a05a00a843ad70b3435c175b14c380b4f106be99a5171ff4db91c36a3cd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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=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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be91c8c4b88d79a22b48e83128c1fdd3c424e116aab70663bd8e5cf6b619db45
[INFO] running `Command { std: "docker" "start" "-a" "be91c8c4b88d79a22b48e83128c1fdd3c424e116aab70663bd8e5cf6b619db45", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:852:5
[INFO] [stderr]     |
[INFO] [stderr] 852 | /     /// ```ignore
[INFO] [stderr] 853 | |     /// <and> || <and> ...
[INFO] [stderr] 854 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:857:5
[INFO] [stderr]     |
[INFO] [stderr] 857 | /     /// ```ignore
[INFO] [stderr] 858 | |     /// <compare> && <compare> ...
[INFO] [stderr] 859 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:862:5
[INFO] [stderr]     |
[INFO] [stderr] 862 | /     /// ```ignore
[INFO] [stderr] 863 | |     /// <bitor> == <bitor> ...
[INFO] [stderr] 864 | |     /// <bitor> != <bitor> ...
[INFO] [stderr] 865 | |     /// <bitor> >= <bitor> ...
[INFO] [stderr] ...   |
[INFO] [stderr] 871 | |     /// NOTE: This operator appears to be parsed as left-associative, but errors
[INFO] [stderr] 872 | |     /// if it is used in a non-associative manner.
[INFO] [stderr]     | |_____---------------------------------------------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:894:5
[INFO] [stderr]     |
[INFO] [stderr] 894 | /     /// ```ignore
[INFO] [stderr] 895 | |     /// <bitxor> | <bitxor> ...
[INFO] [stderr] 896 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:904:5
[INFO] [stderr]     |
[INFO] [stderr] 904 | /     /// ```ignore
[INFO] [stderr] 905 | |     /// <bitand> ^ <bitand> ...
[INFO] [stderr] 906 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:914:5
[INFO] [stderr]     |
[INFO] [stderr] 914 | /     /// ```ignore
[INFO] [stderr] 915 | |     /// <shift> & <shift> ...
[INFO] [stderr] 916 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:925:5
[INFO] [stderr]     |
[INFO] [stderr] 925 | /     /// ```ignore
[INFO] [stderr] 926 | |     /// <arith> << <arith> ...
[INFO] [stderr] 927 | |     /// <arith> >> <arith> ...
[INFO] [stderr] 928 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:935:5
[INFO] [stderr]     |
[INFO] [stderr] 935 | /     /// ```ignore
[INFO] [stderr] 936 | |     /// <term> + <term> ...
[INFO] [stderr] 937 | |     /// <term> - <term> ...
[INFO] [stderr] 938 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:945:5
[INFO] [stderr]     |
[INFO] [stderr] 945 | /     /// ```ignore
[INFO] [stderr] 946 | |     /// <cast> * <cast> ...
[INFO] [stderr] 947 | |     /// <cast> / <cast> ...
[INFO] [stderr] 948 | |     /// <cast> % <cast> ...
[INFO] [stderr] 949 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:958:5
[INFO] [stderr]     |
[INFO] [stderr] 958 | /     /// ```ignore
[INFO] [stderr] 959 | |     /// <unary> as <ty>
[INFO] [stderr] 960 | |     /// <unary> : <ty>
[INFO] [stderr] 961 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/ty.rs:341:9
[INFO] [stderr]     |
[INFO] [stderr] 341 | /         /// In some positions, types may not contain the `+` character, to
[INFO] [stderr] 342 | |         /// disambiguate them. For example in the expression `1 as T`, T may not
[INFO] [stderr] 343 | |         /// contain a `+` character.
[INFO] [stderr] 344 | |         ///
[INFO] [stderr] 345 | |         /// This parser does not allow a `+`, while the default parser does.
[INFO] [stderr]     | |_________-------------------------------------------------------------------^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/lifetime.rs:50:21
[INFO] [stderr]    |
[INFO] [stderr] 50 |             panic!("{:?} is not a valid lifetime name");
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 50 |             panic!("{:?} is not a valid lifetime name", ...);
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 50 |             panic!("{}", "{:?} is not a valid lifetime name");
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:852:5
[INFO] [stderr]     |
[INFO] [stderr] 852 | /     /// ```ignore
[INFO] [stderr] 853 | |     /// <and> || <and> ...
[INFO] [stderr] 854 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:857:5
[INFO] [stderr]     |
[INFO] [stderr] 857 | /     /// ```ignore
[INFO] [stderr] 858 | |     /// <compare> && <compare> ...
[INFO] [stderr] 859 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:862:5
[INFO] [stderr]     |
[INFO] [stderr] 862 | /     /// ```ignore
[INFO] [stderr] 863 | |     /// <bitor> == <bitor> ...
[INFO] [stderr] 864 | |     /// <bitor> != <bitor> ...
[INFO] [stderr] 865 | |     /// <bitor> >= <bitor> ...
[INFO] [stderr] ...   |
[INFO] [stderr] 871 | |     /// NOTE: This operator appears to be parsed as left-associative, but errors
[INFO] [stderr] 872 | |     /// if it is used in a non-associative manner.
[INFO] [stderr]     | |_____---------------------------------------------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:894:5
[INFO] [stderr]     |
[INFO] [stderr] 894 | /     /// ```ignore
[INFO] [stderr] 895 | |     /// <bitxor> | <bitxor> ...
[INFO] [stderr] 896 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:904:5
[INFO] [stderr]     |
[INFO] [stderr] 904 | /     /// ```ignore
[INFO] [stderr] 905 | |     /// <bitand> ^ <bitand> ...
[INFO] [stderr] 906 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:914:5
[INFO] [stderr]     |
[INFO] [stderr] 914 | /     /// ```ignore
[INFO] [stderr] 915 | |     /// <shift> & <shift> ...
[INFO] [stderr] 916 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:925:5
[INFO] [stderr]     |
[INFO] [stderr] 925 | /     /// ```ignore
[INFO] [stderr] 926 | |     /// <arith> << <arith> ...
[INFO] [stderr] 927 | |     /// <arith> >> <arith> ...
[INFO] [stderr] 928 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:935:5
[INFO] [stderr]     |
[INFO] [stderr] 935 | /     /// ```ignore
[INFO] [stderr] 936 | |     /// <term> + <term> ...
[INFO] [stderr] 937 | |     /// <term> - <term> ...
[INFO] [stderr] 938 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:945:5
[INFO] [stderr]     |
[INFO] [stderr] 945 | /     /// ```ignore
[INFO] [stderr] 946 | |     /// <cast> * <cast> ...
[INFO] [stderr] 947 | |     /// <cast> / <cast> ...
[INFO] [stderr] 948 | |     /// <cast> % <cast> ...
[INFO] [stderr] 949 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/expr.rs:958:5
[INFO] [stderr]     |
[INFO] [stderr] 958 | /     /// ```ignore
[INFO] [stderr] 959 | |     /// <unary> as <ty>
[INFO] [stderr] 960 | |     /// <unary> : <ty>
[INFO] [stderr] 961 | |     /// ```
[INFO] [stderr]     | |_____------^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/ty.rs:341:9
[INFO] [stderr]     |
[INFO] [stderr] 341 | /         /// In some positions, types may not contain the `+` character, to
[INFO] [stderr] 342 | |         /// disambiguate them. For example in the expression `1 as T`, T may not
[INFO] [stderr] 343 | |         /// contain a `+` character.
[INFO] [stderr] 344 | |         ///
[INFO] [stderr] 345 | |         /// This parser does not allow a `+`, while the default parser does.
[INFO] [stderr]     | |_________-------------------------------------------------------------------^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           rustdoc does not generate documentation for macro invocations
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/lifetime.rs:50:21
[INFO] [stderr]    |
[INFO] [stderr] 50 |             panic!("{:?} is not a valid lifetime name");
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 50 |             panic!("{:?} is not a valid lifetime name", ...);
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 50 |             panic!("{}", "{:?} is not a valid lifetime name");
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unrest_tmp_syn-327c10aeb6d4268c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unrest_tmp_syn
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - parse (line 121) ... ignored
[INFO] [stdout] test src/ty.rs - ty::QSelf (line 248) ... ignored
[INFO] [stdout] test src/generics.rs - generics::Generics::split_for_impl (line 40) ... FAILED
[INFO] [stdout] test src/lib.rs - parse_str (line 182) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/generics.rs - generics::Generics::split_for_impl (line 40) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `syn`
[INFO] [stdout]  --> src/generics.rs:41:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate syn;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - parse_str (line 182) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `syn`
[INFO] [stdout]  --> src/lib.rs:183:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate syn;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/generics.rs - generics::Generics::split_for_impl (line 40)
[INFO] [stdout]     src/lib.rs - parse_str (line 182)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "be91c8c4b88d79a22b48e83128c1fdd3c424e116aab70663bd8e5cf6b619db45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be91c8c4b88d79a22b48e83128c1fdd3c424e116aab70663bd8e5cf6b619db45", kill_on_drop: false }`
[INFO] [stdout] be91c8c4b88d79a22b48e83128c1fdd3c424e116aab70663bd8e5cf6b619db45
