[INFO] fetching crate diesel_infer_schema 1.4.0...
[INFO] extracting crate diesel_infer_schema 1.4.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/diesel_infer_schema/1.4.0
[INFO] extracting crate diesel_infer_schema 1.4.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/diesel_infer_schema/1.4.0
[INFO] validating manifest of diesel_infer_schema-1.4.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of diesel_infer_schema-1.4.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing diesel_infer_schema-1.4.0
[INFO] finished frobbing diesel_infer_schema-1.4.0
[INFO] frobbed toml for diesel_infer_schema-1.4.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/diesel_infer_schema/1.4.0/Cargo.toml
[INFO] started frobbing diesel_infer_schema-1.4.0
[INFO] finished frobbing diesel_infer_schema-1.4.0
[INFO] frobbed toml for diesel_infer_schema-1.4.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/diesel_infer_schema/1.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking diesel_infer_schema-1.4.0 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-2/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/diesel_infer_schema/1.4.0:/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=forbid" "-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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aee6a158b57b7921f47f5a404e732e1b4d50c834fc8552a08275714c2c22a703
[INFO] running `"docker" "start" "-a" "aee6a158b57b7921f47f5a404e732e1b4d50c834fc8552a08275714c2c22a703"`
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking dotenv v0.10.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling diesel_derives v1.4.0
[INFO] [stderr]    Compiling diesel v1.4.2
[INFO] [stderr]    Compiling infer_schema_internals v1.4.0
[INFO] [stderr] error: At least one backend must be specified for use with this crate.
[INFO] [stderr]  In Cargo.toml, please specify `features = ["postgresql"]`, `features = ["mysql"]`, or `features = ["sqlite"]`
[INFO] [stderr] 
[INFO] [stderr]  ex. `infer_schema_internals { features = ["postgres"] }`
[INFO] [stderr]  
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/infer_schema_internals-1.4.0/src/inference.rs:70:14
[INFO] [stderr]    |
[INFO] [stderr] 70 |           _ => compile_error!(
[INFO] [stderr]    |  ______________^
[INFO] [stderr] 71 | |             "At least one backend must be specified for use with this crate.\n \
[INFO] [stderr] 72 | |              In Cargo.toml, please specify `features = [\"postgresql\"]`, \
[INFO] [stderr] 73 | |              `features = [\"mysql\"]`, or `features = [\"sqlite\"]`\n\n \
[INFO] [stderr] 74 | |              ex. `infer_schema_internals { features = [\"postgres\"] }`\n "
[INFO] [stderr] 75 | |         ),
[INFO] [stderr]    | |_________^
[INFO] [stderr] 
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/infer_schema_internals-1.4.0/src/inference.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     let constraints = match connection {
[INFO] [stderr]     |         ----------- consider giving `constraints` a type
[INFO] [stderr] ...
[INFO] [stderr] 176 |     constraints.map(|mut ct| {
[INFO] [stderr]     |     ^^^^^^^^^^^ cannot infer type
[INFO] [stderr]     |
[INFO] [stderr]     = note: type must be known at this point
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: Could not compile `infer_schema_internals`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "aee6a158b57b7921f47f5a404e732e1b4d50c834fc8552a08275714c2c22a703"`
[INFO] running `"docker" "rm" "-f" "aee6a158b57b7921f47f5a404e732e1b4d50c834fc8552a08275714c2c22a703"`
[INFO] [stdout] aee6a158b57b7921f47f5a404e732e1b4d50c834fc8552a08275714c2c22a703