[INFO] cloning repository https://github.com/Bert-Proesmans/syn-issue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bert-Proesmans/syn-issue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBert-Proesmans%2Fsyn-issue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBert-Proesmans%2Fsyn-issue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e72b592c0128d8be110cafafa2aee637c056fea2
[INFO] checking Bert-Proesmans/syn-issue against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBert-Proesmans%2Fsyn-issue" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bert-Proesmans/syn-issue on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Bert-Proesmans/syn-issue
[INFO] finished tweaking git repo https://github.com/Bert-Proesmans/syn-issue
[INFO] tweaked toml for git repo https://github.com/Bert-Proesmans/syn-issue written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Bert-Proesmans/syn-issue already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1cf7e6c66e7b6af955c6a0eaab413111cecc189e94b5025353b9b8f720bbea4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f1cf7e6c66e7b6af955c6a0eaab413111cecc189e94b5025353b9b8f720bbea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1cf7e6c66e7b6af955c6a0eaab413111cecc189e94b5025353b9b8f720bbea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1cf7e6c66e7b6af955c6a0eaab413111cecc189e94b5025353b9b8f720bbea4", kill_on_drop: false }`
[INFO] [stdout] f1cf7e6c66e7b6af955c6a0eaab413111cecc189e94b5025353b9b8f720bbea4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47ab094b4554528fb9d4017024e59a6bb0d73d74effe4350b27493c8a4a7d196
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47ab094b4554528fb9d4017024e59a6bb0d73d74effe4350b27493c8a4a7d196", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.1
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:64:41
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 let group = proc_macro::TokenNode::Group(delim, tt.stream.inner.0);
[INFO] [stdout]    |                                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:72:41
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 (tt.span(), proc_macro::TokenNode::Op(tt.op(), kind))
[INFO] [stdout]    |                                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:75:41
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 (tt.span(), proc_macro::TokenNode::Term(tt.inner.0))
[INFO] [stdout]    |                                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:78:41
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 (tt.span(), proc_macro::TokenNode::Literal(tt.inner.0))
[INFO] [stdout]    |                                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:122:25
[INFO] [stdout]     |
[INFO] [stdout] 122 |             proc_macro::TokenNode::Group(delim, s) => {
[INFO] [stdout]     |                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:134:25
[INFO] [stdout]     |
[INFO] [stdout] 134 |             proc_macro::TokenNode::Op(ch, kind) => {
[INFO] [stdout]     |                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:143:25
[INFO] [stdout]     |
[INFO] [stdout] 143 |             proc_macro::TokenNode::Term(s) => {
[INFO] [stdout]     |                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:146:25
[INFO] [stdout]     |
[INFO] [stdout] 146 |             proc_macro::TokenNode::Literal(l) => {
[INFO] [stdout]     |                         ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:355:21
[INFO] [stdout]     |
[INFO] [stdout] 355 |         proc_macro::TokenNode::Literal(l) => l,
[INFO] [stdout]     |                     ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0574]: expected struct, variant or union type, found enum `proc_macro::TokenTree`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |         TokenStream(proc_macro::TokenTree { span: span.inner.0, kind }.into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^ not a struct, variant or union type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TokenTreeIter` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:104:38
[INFO] [stdout]     |
[INFO] [stdout] 104 |   pub struct TokenTreeIter(proc_macro::TokenTreeIter);
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^ help: an enum with a similar name exists: `TokenTree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Term` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:268:29
[INFO] [stdout]     |
[INFO] [stdout] 268 | pub struct Term(proc_macro::Term);
[INFO] [stdout]     |                             ^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 3   | use Term;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Term` in `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:272:26
[INFO] [stdout]     |
[INFO] [stdout] 272 |         Term(proc_macro::Term::intern(string))
[INFO] [stdout]     |                          ^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 3   | use Term;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:177:23
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub struct SourceFile(proc_macro::SourceFile, FileName);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:180:16
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn new(sf: proc_macro::SourceFile) -> Self {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let proc_macro::LineColumn{ line, column } = self.0.start();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:252:13
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let proc_macro::LineColumn{ line, column } = self.0.end();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `empty` found for struct `proc_macro::TokenStream` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:19:46
[INFO] [stdout]    |
[INFO] [stdout] 19 |         TokenStream(proc_macro::TokenStream::empty())
[INFO] [stdout]    |                                              ^^^^^ function or associated item not found in `proc_macro::TokenStream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: a value of type `proc_macro::TokenStream` cannot be built from an iterator over elements of type `imp::TokenStream`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 |         TokenStream(streams.collect::<proc_macro::TokenStream>())
[INFO] [stdout]    |                             ^^^^^^^ value of type `proc_macro::TokenStream` cannot be built from `std::iter::Iterator<Item=imp::TokenStream>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromIterator<imp::TokenStream>` is not implemented for `proc_macro::TokenStream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:181:36
[INFO] [stdout]     |
[INFO] [stdout] 181 |         let filename = FileName(sf.path().to_string());
[INFO] [stdout]     |                                    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `to_string` exists for struct `PathBuf`, but its trait bounds were not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:181:43
[INFO] [stdout]      |
[INFO] [stdout] 181  |           let filename = FileName(sf.path().to_string());
[INFO] [stdout]      |                                             ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: the following trait bounds were not satisfied:
[INFO] [stdout]              `PathBuf: std::fmt::Display`
[INFO] [stdout]              which is required by `PathBuf: ToString`
[INFO] [stdout]              `Path: std::fmt::Display`
[INFO] [stdout]              which is required by `Path: ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:191:16
[INFO] [stdout]     |
[INFO] [stdout] 191 |         self.0.is_real()
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `proc_macro::Span`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub struct Span(proc_macro::Span);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `!=` cannot be applied to type `proc_macro::Span`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub struct Span(proc_macro::Span);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `proc_macro::Span: Eq` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 | pub struct Span(proc_macro::Span);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ the trait `Eq` is not implemented for `proc_macro::Span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_def_site'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:227:14
[INFO] [stdout]     |
[INFO] [stdout] 227 |         Span(proc_macro::Span::def_site())
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54724 <https://github.com/rust-lang/rust/issues/54724> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_def_site)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:243:32
[INFO] [stdout]     |
[INFO] [stdout] 243 |         SourceFile::new(self.0.source_file())
[INFO] [stdout]     |                                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:247:61
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let proc_macro::LineColumn{ line, column } = self.0.start();
[INFO] [stdout]     |                                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:247:37
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let proc_macro::LineColumn{ line, column } = self.0.start();
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:247:43
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let proc_macro::LineColumn{ line, column } = self.0.start();
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:252:61
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let proc_macro::LineColumn{ line, column } = self.0.end();
[INFO] [stdout]     |                                                             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:252:37
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let proc_macro::LineColumn{ line, column } = self.0.end();
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:252:43
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let proc_macro::LineColumn{ line, column } = self.0.end();
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:257:16
[INFO] [stdout]     |
[INFO] [stdout] 257 |         self.0.join(other.0).map(Span)
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `float` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:312:38
[INFO] [stdout]     |
[INFO] [stdout] 312 |         Literal(proc_macro::Literal::float(s))
[INFO] [stdout]     |                                      ^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `integer` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:316:38
[INFO] [stdout]     |
[INFO] [stdout] 316 |         Literal(proc_macro::Literal::integer(s.into()))
[INFO] [stdout]     |                                      ^^^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `kind` on type `proc_macro::TokenTree`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:354:46
[INFO] [stdout]     |
[INFO] [stdout] 354 |     match stream.into_iter().next().unwrap().kind {
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `u8` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:371:5
[INFO] [stdout]     |
[INFO] [stdout] 371 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |     ^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `u16` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:371:9
[INFO] [stdout]     |
[INFO] [stdout] 371 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |         ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `u32` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:371:14
[INFO] [stdout]     |
[INFO] [stdout] 371 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |              ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `u64` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:371:19
[INFO] [stdout]     |
[INFO] [stdout] 371 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |                   ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `usize` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:371:24
[INFO] [stdout]     |
[INFO] [stdout] 371 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |                        ^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `i8` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:372:5
[INFO] [stdout]     |
[INFO] [stdout] 372 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |     ^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `i16` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:372:9
[INFO] [stdout]     |
[INFO] [stdout] 372 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |         ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `i32` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |              ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `i64` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:372:19
[INFO] [stdout]     |
[INFO] [stdout] 372 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |                   ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `isize` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:372:24
[INFO] [stdout]     |
[INFO] [stdout] 372 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |                        ^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `f32` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:386:5
[INFO] [stdout]     |
[INFO] [stdout] 386 |     f32, f64,
[INFO] [stdout]     |     ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `f64` found for struct `proc_macro::Literal` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.1/src/unstable.rs:386:10
[INFO] [stdout]     |
[INFO] [stdout] 386 |     f32, f64,
[INFO] [stdout]     |          ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 49 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0369, E0412, E0433, E0574, E0599, E0609, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "47ab094b4554528fb9d4017024e59a6bb0d73d74effe4350b27493c8a4a7d196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ab094b4554528fb9d4017024e59a6bb0d73d74effe4350b27493c8a4a7d196", kill_on_drop: false }`
[INFO] [stdout] 47ab094b4554528fb9d4017024e59a6bb0d73d74effe4350b27493c8a4a7d196