[INFO] updating cached repository eedahl/wr-stats-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/eedahl/wr-stats-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/eedahl/wr-stats-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/eedahl/wr-stats-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/eedahl/wr-stats-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/eedahl/wr-stats-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eedahl/wr-stats-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eedahl/wr-stats-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 05a3913b9208fc10a48e94ae3534d01882d0d63d
[INFO] sha for GitHub repo eedahl/wr-stats-rust: 05a3913b9208fc10a48e94ae3534d01882d0d63d
[INFO] validating manifest of eedahl/wr-stats-rust 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 eedahl/wr-stats-rust 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 eedahl/wr-stats-rust
[INFO] finished frobbing eedahl/wr-stats-rust
[INFO] frobbed toml for eedahl/wr-stats-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/eedahl/wr-stats-rust/Cargo.toml
[INFO] started frobbing eedahl/wr-stats-rust
[INFO] finished frobbing eedahl/wr-stats-rust
[INFO] frobbed toml for eedahl/wr-stats-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eedahl/wr-stats-rust/Cargo.toml
[INFO] crate eedahl/wr-stats-rust 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 eedahl/wr-stats-rust 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/eedahl/wr-stats-rust:/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] a70886f467b739c849d9c7308bcd7ff7de0b330fb5dbb3020867c9e6ee23e2bf
[INFO] running `"docker" "start" "-a" "a70886f467b739c849d9c7308bcd7ff7de0b330fb5dbb3020867c9e6ee23e2bf"`
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0 (https://github.com/lfairy/maud#2455de58)
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]    Compiling urlencoding v1.0.0
[INFO] [stderr]    Compiling wr-stats v0.6.3-alpha (/opt/crater/workdir)
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.32
[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/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr] error: Could not compile `literalext`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a70886f467b739c849d9c7308bcd7ff7de0b330fb5dbb3020867c9e6ee23e2bf"`
[INFO] running `"docker" "rm" "-f" "a70886f467b739c849d9c7308bcd7ff7de0b330fb5dbb3020867c9e6ee23e2bf"`
[INFO] [stdout] a70886f467b739c849d9c7308bcd7ff7de0b330fb5dbb3020867c9e6ee23e2bf