[INFO] fetching crate infer_schema_macros 1.4.0...
[INFO] checking infer_schema_macros-1.4.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate infer_schema_macros 1.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate infer_schema_macros 1.4.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate infer_schema_macros 1.4.0
[INFO] finished tweaking crates.io crate infer_schema_macros 1.4.0
[INFO] tweaked toml for crates.io crate infer_schema_macros 1.4.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.7.11
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[INFO] [stderr]   Downloaded derive-error-chain v0.10.1
[INFO] [stderr]   Downloaded infer_schema_internals v1.4.0
[INFO] [stderr]   Downloaded clippy_lints v0.0.195
[INFO] [stderr]   Downloaded clippy v0.0.195
[INFO] [stderr]   Downloaded dotenv v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3c4cb4b1e5c8cd39731350dd0603cd56c79f68832ea1853db059465cd016226
[INFO] running `Command { std: "docker" "start" "-a" "b3c4cb4b1e5c8cd39731350dd0603cd56c79f68832ea1853db059465cd016226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c4cb4b1e5c8cd39731350dd0603cd56c79f68832ea1853db059465cd016226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c4cb4b1e5c8cd39731350dd0603cd56c79f68832ea1853db059465cd016226", kill_on_drop: false }`
[INFO] [stdout] b3c4cb4b1e5c8cd39731350dd0603cd56c79f68832ea1853db059465cd016226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85ad27b71f546077605b06513a888fa09060fe1d4bb74971f269a8d648f213ad
[INFO] running `Command { std: "docker" "start" "-a" "85ad27b71f546077605b06513a888fa09060fe1d4bb74971f269a8d648f213ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling derive-error-chain v0.10.1
[INFO] [stderr]     Checking dotenv v0.10.1
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]     Checking diesel v1.4.7
[INFO] [stderr]     Checking infer_schema_internals v1.4.0
[INFO] [stdout] error: At least one backend must be specified for use with this crate.
[INFO] [stdout]  In Cargo.toml, please specify `features = ["postgresql"]`, `features = ["mysql"]`, or `features = ["sqlite"]`
[INFO] [stdout] 
[INFO] [stdout]  ex. `infer_schema_internals { features = ["postgres"] }`
[INFO] [stdout]  
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/infer_schema_internals-1.4.0/src/inference.rs:70:14
[INFO] [stdout]    |
[INFO] [stdout] 70 |           _ => compile_error!(
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 71 | |             "At least one backend must be specified for use with this crate.\n \
[INFO] [stdout] 72 | |              In Cargo.toml, please specify `features = [\"postgresql\"]`, \
[INFO] [stdout] 73 | |              `features = [\"mysql\"]`, or `features = [\"sqlite\"]`\n\n \
[INFO] [stdout] 74 | |              ex. `infer_schema_internals { features = [\"postgres\"] }`\n "
[INFO] [stdout] 75 | |         ),
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/infer_schema_internals-1.4.0/src/inference.rs:128:37
[INFO] [stdout]     |
[INFO] [stdout] 128 |       let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stdout]     |  _____________________________________^
[INFO] [stdout] 129 | |         #[cfg(feature = "sqlite")]
[INFO] [stdout] 130 | |         InferConnection::Sqlite(ref c) => ::sqlite::get_primary_keys(c, table),
[INFO] [stdout] 131 | |         #[cfg(feature = "postgres")]
[INFO] [stdout] ...   |
[INFO] [stdout] 134 | |         InferConnection::Mysql(ref c) => ::information_schema::get_primary_keys(c, table),
[INFO] [stdout] 135 | |     });
[INFO] [stdout]     | |______^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/infer_schema_internals-1.4.0/src/inference.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let constraints = match connection {
[INFO] [stdout]     |         ----------- consider giving `constraints` a type
[INFO] [stdout] ...
[INFO] [stdout] 176 |     constraints.map(|mut ct| {
[INFO] [stdout]     |     ^^^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `infer_schema_internals` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "85ad27b71f546077605b06513a888fa09060fe1d4bb74971f269a8d648f213ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85ad27b71f546077605b06513a888fa09060fe1d4bb74971f269a8d648f213ad", kill_on_drop: false }`
[INFO] [stdout] 85ad27b71f546077605b06513a888fa09060fe1d4bb74971f269a8d648f213ad