[INFO] crate infer_schema_internals 1.4.0 is already in cache
[INFO] checking infer_schema_internals-1.4.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate infer_schema_internals 1.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate infer_schema_internals 1.4.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate infer_schema_internals 1.4.0
[INFO] finished tweaking crates.io crate infer_schema_internals 1.4.0
[INFO] tweaked toml for crates.io crate infer_schema_internals 1.4.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39cc68879e61f05d008fc1b007b8f3fbfe2bcb1014a792c28bcc1077ea78d7f0
[INFO] running `"docker" "start" "-a" "39cc68879e61f05d008fc1b007b8f3fbfe2bcb1014a792c28bcc1077ea78d7f0"`
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]     Checking dotenv v0.10.1
[INFO] [stderr]     Checking diesel v1.4.4
[INFO] [stderr]     Checking infer_schema_internals v1.4.0 (/opt/rustwide/workdir)
[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]   --> 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: 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]   --> 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: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/inference.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let connection = try!(establish_connection(database_url));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/inference.rs:128:37
[INFO] [stderr]     |
[INFO] [stderr] 128 |     let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/inference.rs:161:22
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let connection = try!(establish_connection(database_url));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: unused import: `diesel::*`
[INFO] [stderr]  --> src/data_structures.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use diesel::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused import: `diesel::deserialize::FromSqlRow`
[INFO] [stderr]  --> src/data_structures.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use diesel::deserialize::FromSqlRow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 | ) -> Result<Vec<TableName>, Box<Error>> {
[INFO] [stderr]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:42:87
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub(crate) fn establish_connection(database_url: &str) -> Result<InferConnection, Box<Error>> {
[INFO] [stderr]    |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:79:76
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn establish_real_connection<Conn>(database_url: &str) -> Result<Conn, Box<Error>>
[INFO] [stderr]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:94:41
[INFO] [stderr]    |
[INFO] [stderr] 94 | ) -> Result<Vec<ColumnInformation>, Box<Error>> {
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:113:29
[INFO] [stderr]     |
[INFO] [stderr] 113 | ) -> Result<ColumnType, Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:127:30
[INFO] [stderr]     |
[INFO] [stderr] 127 | ) -> Result<Vec<String>, Box<Error>> {
[INFO] [stderr]     |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:160:44
[INFO] [stderr]     |
[INFO] [stderr] 160 | ) -> Result<Vec<ForeignKeyConstraint>, Box<Error>> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:192:86
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub fn load_table_data(database_url: &str, name: TableName) -> Result<TableData, Box<Error>> {
[INFO] [stderr]     |                                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:238:34
[INFO] [stderr]     |
[INFO] [stderr] 238 |         .collect::<Result<_, Box<Error>>>()?;
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/inference.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let connection = try!(establish_connection(database_url));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/inference.rs:128:37
[INFO] [stderr]     |
[INFO] [stderr] 128 |     let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/inference.rs:161:22
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let connection = try!(establish_connection(database_url));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: unused import: `diesel::*`
[INFO] [stderr]  --> src/data_structures.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use diesel::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused import: `diesel::deserialize::FromSqlRow`
[INFO] [stderr]  --> src/data_structures.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use diesel::deserialize::FromSqlRow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 | ) -> Result<Vec<TableName>, Box<Error>> {
[INFO] [stderr]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:42:87
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub(crate) fn establish_connection(database_url: &str) -> Result<InferConnection, Box<Error>> {
[INFO] [stderr]    |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:79:76
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn establish_real_connection<Conn>(database_url: &str) -> Result<Conn, Box<Error>>
[INFO] [stderr]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/inference.rs:94:41
[INFO] [stderr]    |
[INFO] [stderr] 94 | ) -> Result<Vec<ColumnInformation>, Box<Error>> {
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:113:29
[INFO] [stderr]     |
[INFO] [stderr] 113 | ) -> Result<ColumnType, Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:127:30
[INFO] [stderr]     |
[INFO] [stderr] 127 | ) -> Result<Vec<String>, Box<Error>> {
[INFO] [stderr]     |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:160:44
[INFO] [stderr]     |
[INFO] [stderr] 160 | ) -> Result<Vec<ForeignKeyConstraint>, Box<Error>> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:192:86
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub fn load_table_data(database_url: &str, name: TableName) -> Result<TableData, Box<Error>> {
[INFO] [stderr]     |                                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/inference.rs:238:34
[INFO] [stderr]     |
[INFO] [stderr] 238 |         .collect::<Result<_, Box<Error>>>()?;
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error: unreachable expression
[INFO] [stderr]    --> src/inference.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 95  |       let column_info = match *conn {
[INFO] [stderr]     |  _______________________-
[INFO] [stderr] 96  | |         #[cfg(feature = "sqlite")]
[INFO] [stderr] 97  | |         InferConnection::Sqlite(ref c) => ::sqlite::get_table_data(c, table),
[INFO] [stderr] 98  | |         #[cfg(feature = "postgres")]
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         InferConnection::Mysql(ref c) => ::information_schema::get_table_data(c, table),
[INFO] [stderr] 102 | |     };
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 103 | /     if let Err(NotFound) = column_info {
[INFO] [stderr] 104 | |         Err(format!("no table exists named {}", table.to_string()).into())
[INFO] [stderr] 105 | |     } else {
[INFO] [stderr] 106 | |         column_info.map_err(Into::into)
[INFO] [stderr] 107 | |     }
[INFO] [stderr]     | |_____^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:2:9
[INFO] [stderr]     |
[INFO] [stderr] 2   | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[deny(unreachable_code)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: unreachable arm
[INFO] [stderr]    --> src/inference.rs:128:37
[INFO] [stderr]     |
[INFO] [stderr] 128 |        let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stderr]     |  ______________________________________^____-
[INFO] [stderr]     | | _____________________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 129 | ||         #[cfg(feature = "sqlite")]
[INFO] [stderr] 130 | ||         InferConnection::Sqlite(ref c) => ::sqlite::get_primary_keys(c, table),
[INFO] [stderr] 131 | ||         #[cfg(feature = "postgres")]
[INFO] [stderr] ...   ||
[INFO] [stderr] 134 | ||         InferConnection::Mysql(ref c) => ::information_schema::get_primary_keys(c, table),
[INFO] [stderr] 135 | ||     });
[INFO] [stderr]     | ||_____-^ unreachable arm
[INFO] [stderr]     | |______|
[INFO] [stderr]     |        any code following this expression is unreachable
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: unreachable expression
[INFO] [stderr]    --> src/inference.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |       let constraints = match connection {
[INFO] [stderr]     |  _______________________-
[INFO] [stderr] 164 | |         #[cfg(feature = "sqlite")]
[INFO] [stderr] 165 | |         InferConnection::Sqlite(c) => ::sqlite::load_foreign_key_constraints(&c, schema_name),
[INFO] [stderr] 166 | |         #[cfg(feature = "postgres")]
[INFO] [stderr] ...   |
[INFO] [stderr] 173 | |         }
[INFO] [stderr] 174 | |     };
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 175 | 
[INFO] [stderr] 176 | /     constraints.map(|mut ct| {
[INFO] [stderr] 177 | |         ct.sort();
[INFO] [stderr] 178 | |         ct
[INFO] [stderr] 179 | |     })
[INFO] [stderr]     | |______^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `infer_schema_internals`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: unreachable expression
[INFO] [stderr]    --> src/inference.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 95  |       let column_info = match *conn {
[INFO] [stderr]     |  _______________________-
[INFO] [stderr] 96  | |         #[cfg(feature = "sqlite")]
[INFO] [stderr] 97  | |         InferConnection::Sqlite(ref c) => ::sqlite::get_table_data(c, table),
[INFO] [stderr] 98  | |         #[cfg(feature = "postgres")]
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         InferConnection::Mysql(ref c) => ::information_schema::get_table_data(c, table),
[INFO] [stderr] 102 | |     };
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 103 | /     if let Err(NotFound) = column_info {
[INFO] [stderr] 104 | |         Err(format!("no table exists named {}", table.to_string()).into())
[INFO] [stderr] 105 | |     } else {
[INFO] [stderr] 106 | |         column_info.map_err(Into::into)
[INFO] [stderr] 107 | |     }
[INFO] [stderr]     | |_____^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:2:9
[INFO] [stderr]     |
[INFO] [stderr] 2   | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[deny(unreachable_code)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: unreachable arm
[INFO] [stderr]    --> src/inference.rs:128:37
[INFO] [stderr]     |
[INFO] [stderr] 128 |        let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stderr]     |  ______________________________________^____-
[INFO] [stderr]     | | _____________________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 129 | ||         #[cfg(feature = "sqlite")]
[INFO] [stderr] 130 | ||         InferConnection::Sqlite(ref c) => ::sqlite::get_primary_keys(c, table),
[INFO] [stderr] 131 | ||         #[cfg(feature = "postgres")]
[INFO] [stderr] ...   ||
[INFO] [stderr] 134 | ||         InferConnection::Mysql(ref c) => ::information_schema::get_primary_keys(c, table),
[INFO] [stderr] 135 | ||     });
[INFO] [stderr]     | ||_____-^ unreachable arm
[INFO] [stderr]     | |______|
[INFO] [stderr]     |        any code following this expression is unreachable
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: unreachable expression
[INFO] [stderr]    --> src/inference.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |       let constraints = match connection {
[INFO] [stderr]     |  _______________________-
[INFO] [stderr] 164 | |         #[cfg(feature = "sqlite")]
[INFO] [stderr] 165 | |         InferConnection::Sqlite(c) => ::sqlite::load_foreign_key_constraints(&c, schema_name),
[INFO] [stderr] 166 | |         #[cfg(feature = "postgres")]
[INFO] [stderr] ...   |
[INFO] [stderr] 173 | |         }
[INFO] [stderr] 174 | |     };
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 175 | 
[INFO] [stderr] 176 | /     constraints.map(|mut ct| {
[INFO] [stderr] 177 | |         ct.sort();
[INFO] [stderr] 178 | |         ct
[INFO] [stderr] 179 | |     })
[INFO] [stderr]     | |______^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 19 previous errors
[INFO] [stderr] 
[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" "39cc68879e61f05d008fc1b007b8f3fbfe2bcb1014a792c28bcc1077ea78d7f0"`
[INFO] running `"docker" "rm" "-f" "39cc68879e61f05d008fc1b007b8f3fbfe2bcb1014a792c28bcc1077ea78d7f0"`
[INFO] [stdout] 39cc68879e61f05d008fc1b007b8f3fbfe2bcb1014a792c28bcc1077ea78d7f0
