[INFO] updating cached repository Coneko/stack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Coneko/stack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Coneko/stack" "work/ex/beta-1.38-1/sources/1.37.0/gh/Coneko/stack"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Coneko/stack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Coneko/stack" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Coneko/stack"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Coneko/stack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 184a8d91e18b204b5e3eaa859b9ffb4c9ac0e05a
[INFO] sha for GitHub repo Coneko/stack: 184a8d91e18b204b5e3eaa859b9ffb4c9ac0e05a
[INFO] validating manifest of Coneko/stack 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 Coneko/stack 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 Coneko/stack
[INFO] finished frobbing Coneko/stack
[INFO] frobbed toml for Coneko/stack written to work/ex/beta-1.38-1/sources/1.37.0/gh/Coneko/stack/Cargo.toml
[INFO] started frobbing Coneko/stack
[INFO] finished frobbing Coneko/stack
[INFO] frobbed toml for Coneko/stack written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Coneko/stack/Cargo.toml
[INFO] crate Coneko/stack 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 Coneko/stack 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-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Coneko/stack:/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] 39c982d6032fbcd76182b5bfb39371392728e63d91e7c3ebadc67498fcc795c3
[INFO] running `"docker" "start" "-a" "39c982d6032fbcd76182b5bfb39371392728e63d91e7c3ebadc67498fcc795c3"`
[INFO] [stderr]    Compiling futures v0.1.18
[INFO] [stderr]    Compiling openssl v0.9.23
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.0
[INFO] [stderr]    Compiling num-traits v0.1.42
[INFO] [stderr]    Compiling unindent v0.1.2
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling openssl-sys v0.9.24
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.1
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling base64 v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.4.0
[INFO] [stderr]    Compiling clap v2.29.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.6
[INFO] [stderr]    Compiling libgit2-sys v0.7.1
[INFO] [stderr]    Compiling mio v0.6.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling indoc-impl v0.2.3
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling indoc v0.2.3
[INFO] [stderr] error: proc-macro derive panicked
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/indoc-0.2.3/src/lib.rs:127:1
[INFO] [stderr]     |
[INFO] [stderr] 127 | / proc_macro_expr_decl! {
[INFO] [stderr] 128 | |     #[doc(hidden)]
[INFO] [stderr] 129 | |     indoc! => indoc_impl
[INFO] [stderr] 130 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: message: assertion failed: `(left == right)`
[INFO] [stderr]               left: `Some("#[allow(unused,")`,
[INFO] [stderr]              right: `Some("#[allow(unused")`
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `indoc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "39c982d6032fbcd76182b5bfb39371392728e63d91e7c3ebadc67498fcc795c3"`
[INFO] running `"docker" "rm" "-f" "39c982d6032fbcd76182b5bfb39371392728e63d91e7c3ebadc67498fcc795c3"`
[INFO] [stdout] 39c982d6032fbcd76182b5bfb39371392728e63d91e7c3ebadc67498fcc795c3