[INFO] crate c2rust-refactor 0.10.1 is already in cache
[INFO] extracting crate c2rust-refactor 0.10.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/c2rust-refactor/0.10.1
[INFO] extracting crate c2rust-refactor 0.10.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c2rust-refactor/0.10.1
[INFO] validating manifest of c2rust-refactor-0.10.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c2rust-refactor-0.10.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing c2rust-refactor-0.10.1
[INFO] finished frobbing c2rust-refactor-0.10.1
[INFO] frobbed toml for c2rust-refactor-0.10.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/c2rust-refactor/0.10.1/Cargo.toml
[INFO] started frobbing c2rust-refactor-0.10.1
[INFO] finished frobbing c2rust-refactor-0.10.1
[INFO] frobbed toml for c2rust-refactor-0.10.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/c2rust-refactor/0.10.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing c2rust-refactor-0.10.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/c2rust-refactor/0.10.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 007b453e13d8e4e27c2602599280fa18474c124177d36700895d4cec078cb2e3
[INFO] running `"docker" "start" "-a" "007b453e13d8e4e27c2602599280fa18474c124177d36700895d4cec078cb2e3"`
[INFO] [stderr]    Compiling c2rust-refactor v0.10.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling slotmap v0.3.0
[INFO] [stderr]    Compiling c2rust-ast-builder v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rlua v0.16.3
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling flate2 v1.0.9
[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/slotmap-0.3.0/src/lib.rs:4:35
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![cfg_attr(feature = "unstable", feature(untagged_unions))]
[INFO] [stderr]   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `slotmap`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/c2rust-ast-builder-0.10.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:949:9
[INFO] [stderr]     |
[INFO] [stderr] 949 |         Lit {
[INFO] [stderr]     |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:960:9
[INFO] [stderr]     |
[INFO] [stderr] 960 |         Lit {
[INFO] [stderr]     |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:967:9
[INFO] [stderr]     |
[INFO] [stderr] 967 |         Lit {
[INFO] [stderr]     |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:974:9
[INFO] [stderr]     |
[INFO] [stderr] 974 |         Lit {
[INFO] [stderr]     |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:985:9
[INFO] [stderr]     |
[INFO] [stderr] 985 |         Lit {
[INFO] [stderr]     |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:998:9
[INFO] [stderr]     |
[INFO] [stderr] 998 |         Lit {
[INFO] [stderr]     |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:1009:9
[INFO] [stderr]      |
[INFO] [stderr] 1009 |         Lit {
[INFO] [stderr]      |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing fields `suffix`, `token` in initializer of `syntax::ast::Lit`
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:1016:9
[INFO] [stderr]      |
[INFO] [stderr] 1016 |         Lit {
[INFO] [stderr]      |         ^^^ missing `suffix`, `token`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:1899:41
[INFO] [stderr]      |
[INFO] [stderr] 1899 |             ForeignItemKind::Static(ty, is_mut),
[INFO] [stderr]      |                                         ^^^^^^ expected enum `syntax::ast::Mutability`, found bool
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `syntax::ast::Mutability`
[INFO] [stderr]                 found type `bool`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing field `source` in initializer of `syntax::ast::Arg`
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:2015:9
[INFO] [stderr]      |
[INFO] [stderr] 2015 |         Arg {
[INFO] [stderr]      |         ^^^ missing `source`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing field `source` in initializer of `syntax::ast::Local`
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.10.0/src/builder.rs:2138:9
[INFO] [stderr]      |
[INFO] [stderr] 2138 |         Local {
[INFO] [stderr]      |         ^^^^^ missing `source`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0063, E0308, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0063`.
[INFO] [stderr] error: Could not compile `c2rust-ast-builder`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "007b453e13d8e4e27c2602599280fa18474c124177d36700895d4cec078cb2e3"`
[INFO] running `"docker" "rm" "-f" "007b453e13d8e4e27c2602599280fa18474c124177d36700895d4cec078cb2e3"`
[INFO] [stdout] 007b453e13d8e4e27c2602599280fa18474c124177d36700895d4cec078cb2e3