[INFO] updating cached repository vmchale/project-init
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vmchale/project-init
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vmchale/project-init" "work/ex/beta-1.38-1/sources/1.37.0/gh/vmchale/project-init"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vmchale/project-init'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vmchale/project-init" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vmchale/project-init"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vmchale/project-init'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5fa419d254f688f15384a54ffbe12af8abd69435
[INFO] sha for GitHub repo vmchale/project-init: 5fa419d254f688f15384a54ffbe12af8abd69435
[INFO] validating manifest of vmchale/project-init 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 vmchale/project-init 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 vmchale/project-init
[INFO] finished frobbing vmchale/project-init
[INFO] frobbed toml for vmchale/project-init written to work/ex/beta-1.38-1/sources/1.37.0/gh/vmchale/project-init/Cargo.toml
[INFO] started frobbing vmchale/project-init
[INFO] finished frobbing vmchale/project-init
[INFO] frobbed toml for vmchale/project-init written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vmchale/project-init/Cargo.toml
[INFO] crate vmchale/project-init 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vmchale/project-init against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vmchale/project-init:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 869a0b7a6a17bd164911a2f9d038c763d7b55e8a3d6a7a9f7321b26089c66df2
[INFO] running `"docker" "start" "-a" "869a0b7a6a17bd164911a2f9d038c763d7b55e8a3d6a7a9f7321b26089c66df2"`
[INFO] [stderr]    Compiling text_io v0.1.6
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling libgit2-sys v0.7.10
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling dirs v1.0.4
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling toml v0.4.9
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling cli-setup v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling project_init v3.1.19 (/opt/crater/workdir)
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling rustache-lists v0.1.2
[INFO] [stderr]    Compiling git2 v0.7.5
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(type_ascription)]
[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 `project_init`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "869a0b7a6a17bd164911a2f9d038c763d7b55e8a3d6a7a9f7321b26089c66df2"`
[INFO] running `"docker" "rm" "-f" "869a0b7a6a17bd164911a2f9d038c763d7b55e8a3d6a7a9f7321b26089c66df2"`
[INFO] [stdout] 869a0b7a6a17bd164911a2f9d038c763d7b55e8a3d6a7a9f7321b26089c66df2