Sep 01 15:16:38.357 INFO checking iovxw/rssbot against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 15:16:38.357 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 15:16:38.357 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/try#952c7dbfa2628309f557b367929ffc17af20b332:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 15:16:38.534 INFO blam! edcd39438757bf941f79ba68ee85d2d1526b2a321ce71389f922af99d9d8793c
Sep 01 15:16:38.535 INFO running `"docker" "start" "-a" "edcd39438757bf941f79ba68ee85d2d1526b2a321ce71389f922af99d9d8793c"`
Sep 01 15:16:39.446 INFO kablam!     Checking futures-await-await-macro v0.1.1
Sep 01 15:16:39.447 INFO kablam!     Checking encoding_rs v0.7.2
Sep 01 15:16:39.448 INFO kablam!     Checking socket2 v0.3.6
Sep 01 15:16:39.448 INFO kablam!    Compiling libz-sys v1.0.18
Sep 01 15:16:39.448 INFO kablam!    Compiling curl-sys v0.4.5
Sep 01 15:16:39.448 INFO kablam!    Compiling phf_shared v0.7.22
Sep 01 15:16:39.466 INFO kablam!    Compiling proc-macro2 v0.4.6
Sep 01 15:16:39.865 INFO kablam!     Checking crossbeam-epoch v0.4.3
Sep 01 15:16:41.161 INFO kablam!     Checking futures-io v0.2.1
Sep 01 15:16:41.259 INFO kablam!    Compiling aho-corasick v0.6.4
Sep 01 15:16:42.574 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:42.574 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:284:13
Sep 01 15:16:42.574 INFO kablam!     |
Sep 01 15:16:42.574 INFO kablam! 284 |     Nightly(proc_macro::SourceFile, FileName),
Sep 01 15:16:42.574 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^
Sep 01 15:16:42.578 INFO kablam!     |
Sep 01 15:16:42.579 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:42.579 INFO kablam! 
Sep 01 15:16:42.581 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:42.581 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:289:20
Sep 01 15:16:42.581 INFO kablam!     |
Sep 01 15:16:42.581 INFO kablam! 289 |     fn nightly(sf: proc_macro::SourceFile) -> Self {
Sep 01 15:16:42.581 INFO kablam!     |                    ^^^^^^^^^^^^^^^^^^^^^^
Sep 01 15:16:42.584 INFO kablam!     |
Sep 01 15:16:42.584 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:42.585 INFO kablam! 
Sep 01 15:16:43.958 INFO kablam!    Compiling thread_local v0.3.5
Sep 01 15:16:43.984 INFO kablam!     Checking phf v0.7.22
Sep 01 15:16:44.996 INFO kablam!     Checking tokio-io v0.1.7
Sep 01 15:16:45.162 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:45.162 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:290:45
Sep 01 15:16:45.162 INFO kablam!     |
Sep 01 15:16:45.162 INFO kablam! 290 |         let filename = stable::file_name(sf.path().to_string());
Sep 01 15:16:45.162 INFO kablam!     |                                             ^^^^
Sep 01 15:16:45.162 INFO kablam!     |
Sep 01 15:16:45.162 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:45.162 INFO kablam! 
Sep 01 15:16:45.571 INFO kablam! error[E0599]: no method named `to_string` found for type `std::path::PathBuf` in the current scope
Sep 01 15:16:45.571 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:290:52
Sep 01 15:16:45.571 INFO kablam!     |
Sep 01 15:16:45.571 INFO kablam! 290 |         let filename = stable::file_name(sf.path().to_string());
Sep 01 15:16:45.571 INFO kablam!     |                                                    ^^^^^^^^^
Sep 01 15:16:45.571 INFO kablam!     |
Sep 01 15:16:45.571 INFO kablam!     = note: the method `to_string` exists but the following trait bounds were not satisfied:
Sep 01 15:16:45.571 INFO kablam!             `std::path::PathBuf : std::string::ToString`
Sep 01 15:16:45.571 INFO kablam!             `std::path::Path : std::string::ToString`
Sep 01 15:16:45.571 INFO kablam!     = help: did you mean `to_str`?
Sep 01 15:16:45.571 INFO kablam! 
Sep 01 15:16:45.573 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:45.573 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:304:44
Sep 01 15:16:45.573 INFO kablam!     |
Sep 01 15:16:45.573 INFO kablam! 304 |             SourceFile::Nightly(a, _) => a.is_real(),
Sep 01 15:16:45.573 INFO kablam!     |                                            ^^^^^^^
Sep 01 15:16:45.573 INFO kablam!     |
Sep 01 15:16:45.573 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:45.573 INFO kablam! 
Sep 01 15:16:45.574 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:45.574 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:347:27
Sep 01 15:16:45.575 INFO kablam!     |
Sep 01 15:16:45.575 INFO kablam! 347 |             Span::Nightly(proc_macro::Span::def_site())
Sep 01 15:16:45.575 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 15:16:45.575 INFO kablam!     |
Sep 01 15:16:45.575 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:45.575 INFO kablam! 
Sep 01 15:16:45.576 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:45.576 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:355:69
Sep 01 15:16:45.576 INFO kablam!     |
Sep 01 15:16:45.576 INFO kablam! 355 |             (Span::Nightly(a), Span::Nightly(b)) => Span::Nightly(a.resolved_at(b)),
Sep 01 15:16:45.576 INFO kablam!     |                                                                     ^^^^^^^^^^^
Sep 01 15:16:45.576 INFO kablam!     |
Sep 01 15:16:45.576 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:45.576 INFO kablam! 
Sep 01 15:16:45.577 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:45.577 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:363:69
Sep 01 15:16:45.577 INFO kablam!     |
Sep 01 15:16:45.577 INFO kablam! 363 |             (Span::Nightly(a), Span::Nightly(b)) => Span::Nightly(a.located_at(b)),
Sep 01 15:16:45.577 INFO kablam!     |                                                                     ^^^^^^^^^^
Sep 01 15:16:45.594 INFO kablam!     |
Sep 01 15:16:45.594 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:45.595 INFO kablam! 
Sep 01 15:16:45.596 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_span' (see issue #38356)
Sep 01 15:16:45.596 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:424:55
Sep 01 15:16:45.596 INFO kablam!     |
Sep 01 15:16:45.596 INFO kablam! 424 |             (Span::Nightly(a), Span::Nightly(b)) => a.eq(b),
Sep 01 15:16:45.596 INFO kablam!     |                                                       ^^
Sep 01 15:16:45.596 INFO kablam!     |
Sep 01 15:16:45.596 INFO kablam!     = help: add #![feature(proc_macro_span)] to the crate attributes to enable
Sep 01 15:16:45.597 INFO kablam! 
Sep 01 15:16:45.615 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_raw_ident' (see issue #38356)
Sep 01 15:16:45.615 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:475:48
Sep 01 15:16:45.615 INFO kablam!     |
Sep 01 15:16:45.615 INFO kablam! 475 |             Span::Nightly(s) => Ident::Nightly(proc_macro::Ident::new_raw(string, s)),
Sep 01 15:16:45.615 INFO kablam!     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 15:16:45.634 INFO kablam!     |
Sep 01 15:16:45.635 INFO kablam!     = help: add #![feature(proc_macro_raw_ident)] to the crate attributes to enable
Sep 01 15:16:45.635 INFO kablam! 
Sep 01 15:16:45.765 INFO kablam! error: aborting due to 10 previous errors
Sep 01 15:16:45.794 INFO kablam!    Compiling phf_generator v0.7.22
Sep 01 15:16:45.805 INFO kablam! 
Sep 01 15:16:45.806 INFO kablam! Some errors occurred: E0599, E0658.
Sep 01 15:16:45.806 INFO kablam! For more information about an error, try `rustc --explain E0599`.
Sep 01 15:16:45.846 INFO kablam! error: Could not compile `proc-macro2`.
Sep 01 15:16:45.847 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 15:16:51.962 INFO kablam! error: build failed
Sep 01 15:16:51.964 INFO kablam! su: No module specific data is present
Sep 01 15:16:52.374 INFO running `"docker" "rm" "-f" "edcd39438757bf941f79ba68ee85d2d1526b2a321ce71389f922af99d9d8793c"`
Sep 01 15:16:52.513 INFO blam! edcd39438757bf941f79ba68ee85d2d1526b2a321ce71389f922af99d9d8793c