[INFO] crate hotswap 0.6.0 is already in cache
[INFO] extracting crate hotswap 0.6.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/hotswap/0.6.0
[INFO] extracting crate hotswap 0.6.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hotswap/0.6.0
[INFO] validating manifest of hotswap-0.6.0 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 hotswap-0.6.0 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 hotswap-0.6.0
[INFO] finished frobbing hotswap-0.6.0
[INFO] frobbed toml for hotswap-0.6.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/hotswap/0.6.0/Cargo.toml
[INFO] started frobbing hotswap-0.6.0
[INFO] finished frobbing hotswap-0.6.0
[INFO] frobbed toml for hotswap-0.6.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hotswap/0.6.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing hotswap-0.6.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hotswap/0.6.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] af73eb9ba6a934f6ce3db5776a7d3b64a2317f9cf5db27d5b43582dba0f3e6d8
[INFO] running `"docker" "start" "-a" "af73eb9ba6a934f6ce3db5776a7d3b64a2317f9cf5db27d5b43582dba0f3e6d8"`
[INFO] [stderr]    Compiling hotswap v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(quote, plugin_registrar, rustc_private, box_syntax, stmt_expr_attributes)]
[INFO] [stderr]   |            ^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `syntax::codemap`
[INFO] [stderr]   --> src/lib.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 | use syntax::codemap::Span;
[INFO] [stderr]    |             ^^^^^^^ could not find `codemap` in `syntax`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `syntax::ext::base::SyntaxExtension`
[INFO] [stderr]   --> src/lib.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 | use syntax::ext::base::SyntaxExtension::{MultiModifier, NormalTT};
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^ `SyntaxExtension` is a struct, not a module
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `quote` in `ext`
[INFO] [stderr]   --> src/util.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 |     use syntax::ext::quote::rt::ToTokens;
[INFO] [stderr]    |                      ^^^^^ could not find `quote` in `ext`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `syntax::codemap`
[INFO] [stderr]   --> src/util.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     use syntax::codemap;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ no `codemap` in the root
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]    --> src/lib.rs:140:35
[INFO] [stderr]     |
[INFO] [stderr] 140 |             return MacEager::expr(quote_expr!(cx, {
[INFO] [stderr]     |                                   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_attr!` in this scope
[INFO] [stderr]    --> src/lib.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |     attrs.insert(0, quote_attr!(cx, #![allow(unused_imports)]));
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_attr!` in this scope
[INFO] [stderr]    --> src/lib.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |     attrs.insert(0, quote_attr!(cx, #![allow(dead_code)]));
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_attr!` in this scope
[INFO] [stderr]    --> src/lib.rs:158:21
[INFO] [stderr]     |
[INFO] [stderr] 158 |     attrs.insert(0, quote_attr!(cx, #![allow(unused_features)]));
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_attr!` in this scope
[INFO] [stderr]    --> src/lib.rs:181:25
[INFO] [stderr]     |
[INFO] [stderr] 181 |         item.attrs.push(quote_attr!(cx, #![no_mangle]));
[INFO] [stderr]     |                         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_item!` in this scope
[INFO] [stderr]    --> src/lib.rs:220:20
[INFO] [stderr]     |
[INFO] [stderr] 220 |         .insert(0, quote_item!(cx, extern crate hotswap_runtime;).unwrap());
[INFO] [stderr]     |                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_item!` in this scope
[INFO] [stderr]   --> src/codegen.rs:19:20
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let item = quote_item!(cx,
[INFO] [stderr]    |                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_item!` in this scope
[INFO] [stderr]   --> src/codegen.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     quote_item!(cx,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_block!` in this scope
[INFO] [stderr]   --> src/codegen.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |     P(quote_block!(cx, {
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_stmt!` in this scope
[INFO] [stderr]   --> src/codegen.rs:74:20
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let stmt = quote_stmt!(cx, {
[INFO] [stderr]    |                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]    --> src/codegen.rs:107:17
[INFO] [stderr]     |
[INFO] [stderr] 107 |     let block = quote_expr!(cx, {
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_ty!` in this scope
[INFO] [stderr]   --> src/util.rs:93:18
[INFO] [stderr]    |
[INFO] [stderr] 93 |             _ => quote_ty!(cx, ()),
[INFO] [stderr]    |                  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `ToTokens` in this scope
[INFO] [stderr]   --> src/util.rs:56:38
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn comma_separated_tokens<T: ToTokens>(cx: &mut ExtCtxt, entries: &[T]) -> Vec<TokenTree> {
[INFO] [stderr]    |                                      ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(quote, plugin_registrar, rustc_private, box_syntax, stmt_expr_attributes)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/util.rs:4:44
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn mod_walk(mut m: Mod, item_map: &mut FnMut(Item) -> Item) -> Mod {
[INFO] [stderr]   |                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Item) -> Item`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `syntax::ext::quote::rt::ToTokens`
[INFO] [stderr]   --> src/util.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     use syntax::ext::quote::rt::ToTokens;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:129:73
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn expand(&self, cx: &mut ExtCtxt, _: Span, tt: TokenStream) -> Box<MacResult> {
[INFO] [stderr]     |                                                                         ^^^^^^^^^ help: use `dyn`: `dyn MacResult`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0432, E0433, E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `hotswap`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "af73eb9ba6a934f6ce3db5776a7d3b64a2317f9cf5db27d5b43582dba0f3e6d8"`
[INFO] running `"docker" "rm" "-f" "af73eb9ba6a934f6ce3db5776a7d3b64a2317f9cf5db27d5b43582dba0f3e6d8"`
[INFO] [stdout] af73eb9ba6a934f6ce3db5776a7d3b64a2317f9cf5db27d5b43582dba0f3e6d8