[INFO] crate c2rust 0.12.0 is already in cache
[INFO] testing c2rust-0.12.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate c2rust 0.12.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate c2rust 0.12.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate c2rust 0.12.0
[INFO] finished tweaking crates.io crate c2rust 0.12.0
[INFO] tweaked toml for crates.io crate c2rust 0.12.0 written to work/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate c2rust 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] cf81e3de60d2d02ac4dcd19b76859c375bbdfd868b336f3a9a112a9eca7922ae
[INFO] running `"docker" "start" "-a" "cf81e3de60d2d02ac4dcd19b76859c375bbdfd868b336f3a9a112a9eca7922ae"`
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling c2rust-refactor v0.12.0
[INFO] [stderr]    Compiling slotmap v0.3.0
[INFO] [stderr]    Compiling c2rust-ast-builder v0.11.0
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.20
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling cmake v0.1.41
[INFO] [stderr]    Compiling rlua v0.16.3
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/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[E0433]: failed to resolve: use of undeclared type or module `Guard`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:966:35
[INFO] [stderr]     |
[INFO] [stderr] 966 |         let guard = guard.map(|g| Guard::If(g.make(&self)));
[INFO] [stderr]     |                                   ^^^^^ use of undeclared type or module `Guard`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: no variant `IfLet` in enum `syntax::ast::ExprKind`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:1067:49
[INFO] [stderr]      |
[INFO] [stderr] 1067 |                 ExprKind::If { .. } | ExprKind::IfLet { .. } | ExprKind::Block(_, None) => e,
[INFO] [stderr]      |                                                 ^^^^^ variant not found in `syntax::ast::ExprKind`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 parameter but 2 parameters were supplied
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:1161:19
[INFO] [stderr]      |
[INFO] [stderr] 1161 |             node: PatKind::Tuple(pats, None),
[INFO] [stderr]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 1 parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `Ty` found for type `syntax::ast::ItemKind` in the current scope
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:1608:30
[INFO] [stderr]      |
[INFO] [stderr] 1608 |         let kind = ItemKind::Ty(ty, self.generics);
[INFO] [stderr]      |                              ^^ variant or associated item not found in `syntax::ast::ItemKind`
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing field `span` in initializer of `syntax::ast::Arg`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:2082:9
[INFO] [stderr]      |
[INFO] [stderr] 2082 |         Arg {
[INFO] [stderr]      |         ^^^ missing `span`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 parameter but 3 parameters were supplied
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:2140:24
[INFO] [stderr]      |
[INFO] [stderr] 2140 |         let mut attr = mk_attr_inner(DUMMY_SP, AttrId(0), meta_item);
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 1 parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0063]: missing field `prior_type_ascription` in initializer of `syntax::ast::Mac_`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/c2rust-ast-builder-0.11.0/src/builder.rs:2188:19
[INFO] [stderr]      |
[INFO] [stderr] 2188 |             node: Mac_ {
[INFO] [stderr]      |                   ^^^^ missing `prior_type_ascription`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0063, E0433, E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[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" "cf81e3de60d2d02ac4dcd19b76859c375bbdfd868b336f3a9a112a9eca7922ae"`
[INFO] running `"docker" "rm" "-f" "cf81e3de60d2d02ac4dcd19b76859c375bbdfd868b336f3a9a112a9eca7922ae"`
[INFO] [stdout] cf81e3de60d2d02ac4dcd19b76859c375bbdfd868b336f3a9a112a9eca7922ae