[INFO] crate wesers 0.4.1 is already in cache
[INFO] extracting crate wesers 0.4.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/wesers/0.4.1
[INFO] extracting crate wesers 0.4.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wesers/0.4.1
[INFO] validating manifest of wesers-0.4.1 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 wesers-0.4.1 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 wesers-0.4.1
[INFO] finished frobbing wesers-0.4.1
[INFO] frobbed toml for wesers-0.4.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/wesers/0.4.1/Cargo.toml
[INFO] started frobbing wesers-0.4.1
[INFO] finished frobbing wesers-0.4.1
[INFO] frobbed toml for wesers-0.4.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wesers/0.4.1/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 wesers-0.4.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wesers/0.4.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a8c7e2f2af60a3a1373eb7c46d340eb0312ead5c912c5997e7de26694859521c
[INFO] running `"docker" "start" "-a" "a8c7e2f2af60a3a1373eb7c46d340eb0312ead5c912c5997e7de26694859521c"`
[INFO] [stderr]    Compiling sequence_trie v0.0.13
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling mustache v0.7.0
[INFO] [stderr]    Compiling cookie v0.2.5
[INFO] [stderr]    Compiling wesers v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] error: environment variable `OUT_DIR` not defined
[INFO] [stderr]   --> build.rs:10:38
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let cargo_target_dir = Path::new(env!("OUT_DIR"))
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wesers`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a8c7e2f2af60a3a1373eb7c46d340eb0312ead5c912c5997e7de26694859521c"`
[INFO] running `"docker" "rm" "-f" "a8c7e2f2af60a3a1373eb7c46d340eb0312ead5c912c5997e7de26694859521c"`
[INFO] [stdout] a8c7e2f2af60a3a1373eb7c46d340eb0312ead5c912c5997e7de26694859521c