[INFO] updating cached repository cswinter/LocustDB
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cswinter/LocustDB
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cswinter/LocustDB" "work/ex/beta-1.38-1/sources/1.37.0/gh/cswinter/LocustDB"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cswinter/LocustDB'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cswinter/LocustDB" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cswinter/LocustDB"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cswinter/LocustDB'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec09124d8ed4ca1675aa98888e03325f59f69e3e
[INFO] sha for GitHub repo cswinter/LocustDB: ec09124d8ed4ca1675aa98888e03325f59f69e3e
[INFO] validating manifest of cswinter/LocustDB 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 cswinter/LocustDB 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 cswinter/LocustDB
[INFO] removed path dependency locustdb-derive from cswinter/LocustDB
[INFO] finished frobbing cswinter/LocustDB
[INFO] frobbed toml for cswinter/LocustDB written to work/ex/beta-1.38-1/sources/1.37.0/gh/cswinter/LocustDB/Cargo.toml
[INFO] started frobbing cswinter/LocustDB
[INFO] removed path dependency locustdb-derive from cswinter/LocustDB
[INFO] finished frobbing cswinter/LocustDB
[INFO] frobbed toml for cswinter/LocustDB written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cswinter/LocustDB/Cargo.toml
[INFO] crate cswinter/LocustDB 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]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cswinter/LocustDB/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 cswinter/LocustDB 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cswinter/LocustDB:/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] 12ce7e7e25989a50da1596384c1b2609f4658c08ead35f5ab39893f085f44e9d
[INFO] running `"docker" "start" "-a" "12ce7e7e25989a50da1596384c1b2609f4658c08ead35f5ab39893f085f44e9d"`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling locustdb v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling seahash v3.0.6
[INFO] [stderr]    Compiling std-semaphore v0.1.0
[INFO] [stderr]    Compiling futures-core v0.2.1
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling futures-channel v0.2.1
[INFO] [stderr]    Compiling futures-io v0.2.1
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling aliasmethod v0.1.0
[INFO] [stderr]    Compiling flate2 v1.0.11
[INFO] [stderr]    Compiling futures-sink v0.2.1
[INFO] [stderr]    Compiling lru v0.1.16
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling futures-util v0.2.1
[INFO] [stderr]    Compiling sqlparser v0.2.4
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling futures-executor v0.2.1
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling locustdb-derive v0.1.0
[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/locustdb-derive-0.1.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(proc_macro_hygiene, proc_macro_diagnostic)]
[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 `locustdb-derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "12ce7e7e25989a50da1596384c1b2609f4658c08ead35f5ab39893f085f44e9d"`
[INFO] running `"docker" "rm" "-f" "12ce7e7e25989a50da1596384c1b2609f4658c08ead35f5ab39893f085f44e9d"`
[INFO] [stdout] 12ce7e7e25989a50da1596384c1b2609f4658c08ead35f5ab39893f085f44e9d