[INFO] cloning repository https://github.com/angelrain1/study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/angelrain1/study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelrain1%2Fstudy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelrain1%2Fstudy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce08632435b1499ef4d2bd4c774d5d3c955ee603
[INFO] checking angelrain1/study against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelrain1%2Fstudy" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/angelrain1/study on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/angelrain1/study
[INFO] finished tweaking git repo https://github.com/angelrain1/study
[INFO] tweaked toml for git repo https://github.com/angelrain1/study written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/angelrain1/study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8e0a0a7f7a6c845f5e05b0fc3ca5cdcbfe770b137924901b54026af932808f9
[INFO] running `Command { std: "docker" "start" "-a" "a8e0a0a7f7a6c845f5e05b0fc3ca5cdcbfe770b137924901b54026af932808f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8e0a0a7f7a6c845f5e05b0fc3ca5cdcbfe770b137924901b54026af932808f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e0a0a7f7a6c845f5e05b0fc3ca5cdcbfe770b137924901b54026af932808f9", kill_on_drop: false }`
[INFO] [stdout] a8e0a0a7f7a6c845f5e05b0fc3ca5cdcbfe770b137924901b54026af932808f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edc0d8c251d08851cfe80522a11a61383fd9c4eabecc329fe6dca5362dfed584
[INFO] running `Command { std: "docker" "start" "-a" "edc0d8c251d08851cfe80522a11a61383fd9c4eabecc329fe6dca5362dfed584", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling cc v1.0.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking futures v0.1.16
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling either v1.2.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.1.3
[INFO] [stdout] error[E0574]: expected struct, variant or union type, found enum `proc_macro::TokenTree`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |         TokenStream(proc_macro::TokenTree {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^ not a struct, variant or union type
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct instead
[INFO] [stdout]    |
[INFO] [stdout] 1  + use TokenTree;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `TokenTree`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 54 -         TokenStream(proc_macro::TokenTree {
[INFO] [stdout] 54 +         TokenStream(TokenTree {
[INFO] [stdout]    |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:64:33
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     proc_macro::TokenNode::Group(delim, (s.0).0)
[INFO] [stdout]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     proc_macro::TokenTree::Group(delim, (s.0).0)
[INFO] [stdout]    |                                 ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 1  + use TokenNode;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 64 -                     proc_macro::TokenNode::Group(delim, (s.0).0)
[INFO] [stdout] 64 +                     TokenNode::Group(delim, (s.0).0)
[INFO] [stdout]    |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:71:33
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     proc_macro::TokenNode::Op(ch, kind)
[INFO] [stdout]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     proc_macro::TokenTree::Op(ch, kind)
[INFO] [stdout]    |                                 ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 1  + use TokenNode;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 71 -                     proc_macro::TokenNode::Op(ch, kind)
[INFO] [stdout] 71 +                     TokenNode::Op(ch, kind)
[INFO] [stdout]    |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:74:33
[INFO] [stdout]    |
[INFO] [stdout] 74 |                     proc_macro::TokenNode::Term((s.0).0)
[INFO] [stdout]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 74 |                     proc_macro::TokenTree::Term((s.0).0)
[INFO] [stdout]    |                                 ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 1  + use TokenNode;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 74 -                     proc_macro::TokenNode::Term((s.0).0)
[INFO] [stdout] 74 +                     TokenNode::Term((s.0).0)
[INFO] [stdout]    |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:77:33
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     proc_macro::TokenNode::Literal((l.0).0)
[INFO] [stdout]    |                                 ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 77 |                     proc_macro::TokenTree::Literal((l.0).0)
[INFO] [stdout]    |                                 ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 1  + use TokenNode;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 77 -                     proc_macro::TokenNode::Literal((l.0).0)
[INFO] [stdout] 77 +                     TokenNode::Literal((l.0).0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TokenTreeIter` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:103:38
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct TokenTreeIter(proc_macro::TokenTreeIter);
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682/library/proc_macro/src/lib.rs:682:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: similarly named enum `TokenTree` defined here
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct TokenTreeIter(proc_macro::TokenTree);
[INFO] [stdout]     |                                      ~~~~~~~~~
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 1   + use TokenTreeIter;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `TokenTreeIter`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 103 - pub struct TokenTreeIter(proc_macro::TokenTreeIter);
[INFO] [stdout] 103 + pub struct TokenTreeIter(TokenTreeIter);
[INFO] [stdout]     |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:125:29
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 proc_macro::TokenNode::Group(delim, s) => {
[INFO] [stdout]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 proc_macro::TokenTree::Group(delim, s) => {
[INFO] [stdout]     |                             ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 1   + use TokenNode;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 125 -                 proc_macro::TokenNode::Group(delim, s) => {
[INFO] [stdout] 125 +                 TokenNode::Group(delim, s) => {
[INFO] [stdout]     |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:134:29
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 proc_macro::TokenNode::Op(ch, kind) => {
[INFO] [stdout]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 proc_macro::TokenTree::Op(ch, kind) => {
[INFO] [stdout]     |                             ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 1   + use TokenNode;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 134 -                 proc_macro::TokenNode::Op(ch, kind) => {
[INFO] [stdout] 134 +                 TokenNode::Op(ch, kind) => {
[INFO] [stdout]     |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:141:29
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 proc_macro::TokenNode::Term(s) => {
[INFO] [stdout]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 proc_macro::TokenTree::Term(s) => {
[INFO] [stdout]     |                             ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 1   + use TokenNode;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 141 -                 proc_macro::TokenNode::Term(s) => {
[INFO] [stdout] 141 +                 TokenNode::Term(s) => {
[INFO] [stdout]     |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:144:29
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 proc_macro::TokenNode::Literal(l) => {
[INFO] [stdout]     |                             ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 proc_macro::TokenTree::Literal(l) => {
[INFO] [stdout]     |                             ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 1   + use TokenNode;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 144 -                 proc_macro::TokenNode::Literal(l) => {
[INFO] [stdout] 144 +                 TokenNode::Literal(l) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Term` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:178:29
[INFO] [stdout]     |
[INFO] [stdout] 178 | 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] 1   + use Term;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Term`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 178 - pub struct Term(proc_macro::Term);
[INFO] [stdout] 178 + pub struct Term(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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:182:26
[INFO] [stdout]     |
[INFO] [stdout] 182 |         Term(proc_macro::Term::intern(string))
[INFO] [stdout]     |                          ^^^^ could not find `Term` in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 1   + use Term;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Term`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 182 -         Term(proc_macro::Term::intern(string))
[INFO] [stdout] 182 +         Term(Term::intern(string))
[INFO] [stdout]     |
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:269:21
[INFO] [stdout]     |
[INFO] [stdout] 269 |         proc_macro::TokenNode::Literal(l) => l,
[INFO] [stdout]     |                     ^^^^^^^^^ could not find `TokenNode` in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 269 |         proc_macro::TokenTree::Literal(l) => l,
[INFO] [stdout]     |                     ~~~~~~~~~
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 1   + use TokenNode;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `TokenNode`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 269 -         proc_macro::TokenNode::Literal(l) => l,
[INFO] [stdout] 269 +         TokenNode::Literal(l) => l,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 |         TokenStream(proc_macro::TokenStream::empty())
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout]    |                                              |
[INFO] [stdout]    |                                              function or associated item not found in `TokenStream`
[INFO] [stdout]    |                                              help: there is a method with a similar name: `is_empty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stdout] error[E0277]: the trait bound `proc_macro::Span: Default` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:163:17
[INFO] [stdout]     |
[INFO] [stdout] 162 | #[derive(Copy, Clone, Default)]
[INFO] [stdout]     |                       ------- in this derive macro expansion
[INFO] [stdout] 163 | pub struct Span(proc_macro::Span);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `proc_macro::Span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:226:38
[INFO] [stdout]     |
[INFO] [stdout] 226 |         Literal(proc_macro::Literal::float(s))
[INFO] [stdout]     |                                      ^^^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:230:38
[INFO] [stdout]     |
[INFO] [stdout] 230 |         Literal(proc_macro::Literal::integer(s.into()))
[INFO] [stdout]     |                                      ^^^^^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:268:46
[INFO] [stdout]     |
[INFO] [stdout] 268 |     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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:285:5
[INFO] [stdout]     |
[INFO] [stdout] 285 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |     ^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 285 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |         ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:285:14
[INFO] [stdout]     |
[INFO] [stdout] 285 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |              ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:285:19
[INFO] [stdout]     |
[INFO] [stdout] 285 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |                   ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:285:24
[INFO] [stdout]     |
[INFO] [stdout] 285 |     u8, u16, u32, u64, usize,
[INFO] [stdout]     |                        ^^^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:286:5
[INFO] [stdout]     |
[INFO] [stdout] 286 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |     ^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |         ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:286:14
[INFO] [stdout]     |
[INFO] [stdout] 286 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |              ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:286:19
[INFO] [stdout]     |
[INFO] [stdout] 286 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |                   ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:286:24
[INFO] [stdout]     |
[INFO] [stdout] 286 |     i8, i16, i32, i64, isize,
[INFO] [stdout]     |                        ^^^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:300:5
[INFO] [stdout]     |
[INFO] [stdout] 300 |     f32, f64,
[INFO] [stdout]     |     ^^^ function or associated item not found in `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/index.crates.io-6f17d22bba15001f/proc-macro2-0.1.3/src/unstable.rs:300:10
[INFO] [stdout]     |
[INFO] [stdout] 300 |     f32, f64,
[INFO] [stdout]     |          ^^^ function or associated item not found in `Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 30 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0412, E0433, E0574, E0599, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 31 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "edc0d8c251d08851cfe80522a11a61383fd9c4eabecc329fe6dca5362dfed584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc0d8c251d08851cfe80522a11a61383fd9c4eabecc329fe6dca5362dfed584", kill_on_drop: false }`
[INFO] [stdout] edc0d8c251d08851cfe80522a11a61383fd9c4eabecc329fe6dca5362dfed584
