[INFO] updating cached repository afonsolage/demo-await-error
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/afonsolage/demo-await-error
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/afonsolage/demo-await-error" "work/ex/beta-1.38-1/sources/1.37.0/gh/afonsolage/demo-await-error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/afonsolage/demo-await-error'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/afonsolage/demo-await-error" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/afonsolage/demo-await-error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/afonsolage/demo-await-error'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 00d445eb66d1ac71b6183b0475f95ce0986bcf0d
[INFO] sha for GitHub repo afonsolage/demo-await-error: 00d445eb66d1ac71b6183b0475f95ce0986bcf0d
[INFO] validating manifest of afonsolage/demo-await-error on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of afonsolage/demo-await-error on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing afonsolage/demo-await-error
[INFO] finished frobbing afonsolage/demo-await-error
[INFO] frobbed toml for afonsolage/demo-await-error written to work/ex/beta-1.38-1/sources/1.37.0/gh/afonsolage/demo-await-error/Cargo.toml
[INFO] started frobbing afonsolage/demo-await-error
[INFO] finished frobbing afonsolage/demo-await-error
[INFO] frobbed toml for afonsolage/demo-await-error written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/afonsolage/demo-await-error/Cargo.toml
[INFO] crate afonsolage/demo-await-error already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing afonsolage/demo-await-error against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/afonsolage/demo-await-error:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 63b0d08d47fbe7f7fcc50159cf5f4055ea885c78bb126fdc26e22415287103e7
[INFO] running `"docker" "start" "-a" "63b0d08d47fbe7f7fcc50159cf5f4055ea885c78bb126fdc26e22415287103e7"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling lazycell v0.5.1
[INFO] [stderr]    Compiling futures v0.1.17
[INFO] [stderr]    Compiling futures-await-await-macro v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.1.5
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:64:33
[INFO] [stderr]    |
[INFO] [stderr] 64 |                     proc_macro::TokenNode::Group(delim, (s.0).0)
[INFO] [stderr]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:71:33
[INFO] [stderr]    |
[INFO] [stderr] 71 |                     proc_macro::TokenNode::Op(ch, kind)
[INFO] [stderr]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:74:33
[INFO] [stderr]    |
[INFO] [stderr] 74 |                     proc_macro::TokenNode::Term((s.0).0)
[INFO] [stderr]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 |                     proc_macro::TokenNode::Literal((l.0).0)
[INFO] [stderr]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:125:29
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 proc_macro::TokenNode::Group(delim, s) => {
[INFO] [stderr]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:134:29
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 proc_macro::TokenNode::Op(ch, kind) => {
[INFO] [stderr]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:141:29
[INFO] [stderr]     |
[INFO] [stderr] 141 |                 proc_macro::TokenNode::Term(s) => {
[INFO] [stderr]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:144:29
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 proc_macro::TokenNode::Literal(l) => {
[INFO] [stderr]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Term` in `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:186:26
[INFO] [stderr]     |
[INFO] [stderr] 186 |         Term(proc_macro::Term::intern(string))
[INFO] [stderr]     |                          ^^^^ could not find `Term` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `TokenNode` in `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:273:21
[INFO] [stderr]     |
[INFO] [stderr] 273 |         proc_macro::TokenNode::Literal(l) => l,
[INFO] [stderr]     |                     ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0574]: expected struct, variant or union type, found enum `proc_macro::TokenTree`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 |         TokenStream(proc_macro::TokenTree {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^ not a struct, variant or union type
[INFO] [stderr] help: possible better candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use TokenTree;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TokenTreeIter` in module `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:103:38
[INFO] [stderr]     |
[INFO] [stderr] 103 | pub struct TokenTreeIter(proc_macro::TokenTreeIter);
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^
[INFO] [stderr] help: an enum with a similar name exists
[INFO] [stderr]     |
[INFO] [stderr] 103 | pub struct TokenTreeIter(proc_macro::TokenTree);
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use TokenTreeIter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use imp::TokenTreeIter;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Term` in module `proc_macro`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:182:29
[INFO] [stderr]     |
[INFO] [stderr] 182 | pub struct Term(proc_macro::Term);
[INFO] [stderr]     |                             ^^^^ not found in `proc_macro`
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use Term;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use imp::Term;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/lib.rs:22:35
[INFO] [stderr]    |
[INFO] [stderr] 22 | #![cfg_attr(feature = "unstable", feature(proc_macro))]
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `empty` found for type `proc_macro::TokenStream` in the current scope
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 |         TokenStream(proc_macro::TokenStream::empty())
[INFO] [stderr]    |                                              ^^^^^ function or associated item not found in `proc_macro::TokenStream`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:171:14
[INFO] [stderr]     |
[INFO] [stderr] 171 |         Span(proc_macro::Span::def_site())
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/54724
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `float` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:230:38
[INFO] [stderr]     |
[INFO] [stderr] 230 |         Literal(proc_macro::Literal::float(s))
[INFO] [stderr]     |                                      ^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `integer` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:234:38
[INFO] [stderr]     |
[INFO] [stderr] 234 |         Literal(proc_macro::Literal::integer(s.into()))
[INFO] [stderr]     |                                      ^^^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `kind` on type `proc_macro::TokenTree`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:272:46
[INFO] [stderr]     |
[INFO] [stderr] 272 |     match stream.into_iter().next().unwrap().kind {
[INFO] [stderr]     |                                              ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `u8` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:289:5
[INFO] [stderr]     |
[INFO] [stderr] 289 |     u8, u16, u32, u64, usize,
[INFO] [stderr]     |     ^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `u16` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:289:9
[INFO] [stderr]     |
[INFO] [stderr] 289 |     u8, u16, u32, u64, usize,
[INFO] [stderr]     |         ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `u32` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:289:14
[INFO] [stderr]     |
[INFO] [stderr] 289 |     u8, u16, u32, u64, usize,
[INFO] [stderr]     |              ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `u64` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:289:19
[INFO] [stderr]     |
[INFO] [stderr] 289 |     u8, u16, u32, u64, usize,
[INFO] [stderr]     |                   ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `usize` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:289:24
[INFO] [stderr]     |
[INFO] [stderr] 289 |     u8, u16, u32, u64, usize,
[INFO] [stderr]     |                        ^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `i8` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     i8, i16, i32, i64, isize,
[INFO] [stderr]     |     ^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `i16` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:290:9
[INFO] [stderr]     |
[INFO] [stderr] 290 |     i8, i16, i32, i64, isize,
[INFO] [stderr]     |         ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `i32` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:290:14
[INFO] [stderr]     |
[INFO] [stderr] 290 |     i8, i16, i32, i64, isize,
[INFO] [stderr]     |              ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `i64` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:290:19
[INFO] [stderr]     |
[INFO] [stderr] 290 |     i8, i16, i32, i64, isize,
[INFO] [stderr]     |                   ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `isize` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:290:24
[INFO] [stderr]     |
[INFO] [stderr] 290 |     i8, i16, i32, i64, isize,
[INFO] [stderr]     |                        ^^^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `f32` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:304:5
[INFO] [stderr]     |
[INFO] [stderr] 304 |     f32, f64,
[INFO] [stderr]     |     ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `f64` found for type `proc_macro::Literal` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.1.5/src/unstable.rs:304:10
[INFO] [stderr]     |
[INFO] [stderr] 304 |     f32, f64,
[INFO] [stderr]     |          ^^^ function or associated item not found in `proc_macro::Literal`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 31 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0433, E0554, E0599, E0609, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `proc-macro2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "63b0d08d47fbe7f7fcc50159cf5f4055ea885c78bb126fdc26e22415287103e7"`
[INFO] running `"docker" "rm" "-f" "63b0d08d47fbe7f7fcc50159cf5f4055ea885c78bb126fdc26e22415287103e7"`
[INFO] [stdout] 63b0d08d47fbe7f7fcc50159cf5f4055ea885c78bb126fdc26e22415287103e7