[INFO] fetching crate infer_schema_internals 1.4.0...
[INFO] building infer_schema_internals-1.4.0 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate infer_schema_internals 1.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate infer_schema_internals 1.4.0 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df070b102814d08265ba3f24fa6f1770290503710dd2072efe46dafd2aafea77
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df070b102814d08265ba3f24fa6f1770290503710dd2072efe46dafd2aafea77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df070b102814d08265ba3f24fa6f1770290503710dd2072efe46dafd2aafea77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df070b102814d08265ba3f24fa6f1770290503710dd2072efe46dafd2aafea77", kill_on_drop: false }`
[INFO] [stdout] df070b102814d08265ba3f24fa6f1770290503710dd2072efe46dafd2aafea77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1c9eabd0d870e81f7f81cee515d5a023c78e107183edcf886ba5fac10d19ef4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e1c9eabd0d870e81f7f81cee515d5a023c78e107183edcf886ba5fac10d19ef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling diesel v1.4.6
[INFO] [stderr]    Compiling infer_schema_internals v1.4.0 (/opt/rustwide/workdir)
[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]   --> 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: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `diesel::*`
[INFO] [stdout]  --> src/data_structures.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use diesel::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `diesel::deserialize::FromSqlRow`
[INFO] [stdout]  --> src/data_structures.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use diesel::deserialize::FromSqlRow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/inference.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let connection = try!(establish_connection(database_url));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/inference.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 | ) -> Result<Vec<TableName>, Box<Error>> {
[INFO] [stdout]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/inference.rs:42:87
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub(crate) fn establish_connection(database_url: &str) -> Result<InferConnection, Box<Error>> {
[INFO] [stdout]    |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/inference.rs:79:76
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn establish_real_connection<Conn>(database_url: &str) -> Result<Conn, Box<Error>>
[INFO] [stdout]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/inference.rs:94:41
[INFO] [stdout]    |
[INFO] [stdout] 94 | ) -> Result<Vec<ColumnInformation>, Box<Error>> {
[INFO] [stdout]    |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/inference.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 | ) -> Result<ColumnType, Box<Error>> {
[INFO] [stdout]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/inference.rs:128:37
[INFO] [stdout]     |
[INFO] [stdout] 128 |     let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/inference.rs:127:30
[INFO] [stdout]     |
[INFO] [stdout] 127 | ) -> Result<Vec<String>, Box<Error>> {
[INFO] [stdout]     |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/inference.rs:161:22
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let connection = try!(establish_connection(database_url));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/inference.rs:160:44
[INFO] [stdout]     |
[INFO] [stdout] 160 | ) -> Result<Vec<ForeignKeyConstraint>, Box<Error>> {
[INFO] [stdout]     |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/inference.rs:192:86
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub fn load_table_data(database_url: &str, name: TableName) -> Result<TableData, Box<Error>> {
[INFO] [stdout]     |                                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/inference.rs:238:34
[INFO] [stdout]     |
[INFO] [stdout] 238 |         .collect::<Result<_, Box<Error>>>()?;
[INFO] [stdout]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unreachable expression
[INFO] [stdout]    --> src/inference.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 95  |       let column_info = match *conn {
[INFO] [stdout]     |  _______________________-
[INFO] [stdout] 96  | |         #[cfg(feature = "sqlite")]
[INFO] [stdout] 97  | |         InferConnection::Sqlite(ref c) => ::sqlite::get_table_data(c, table),
[INFO] [stdout] 98  | |         #[cfg(feature = "postgres")]
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |         InferConnection::Mysql(ref c) => ::information_schema::get_table_data(c, table),
[INFO] [stdout] 102 | |     };
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 103 | /     if let Err(NotFound) = column_info {
[INFO] [stdout] 104 | |         Err(format!("no table exists named {}", table.to_string()).into())
[INFO] [stdout] 105 | |     } else {
[INFO] [stdout] 106 | |         column_info.map_err(Into::into)
[INFO] [stdout] 107 | |     }
[INFO] [stdout]     | |_____^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unreachable_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unreachable arm
[INFO] [stdout]    --> src/inference.rs:128:37
[INFO] [stdout]     |
[INFO] [stdout] 128 |        let primary_keys: Vec<String> = try!(match *conn {
[INFO] [stdout]     |  ______________________________________^____-
[INFO] [stdout]     | | _____________________________________|
[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]     | ||_____-^ unreachable arm
[INFO] [stdout]     | |______|
[INFO] [stdout]     |        any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unreachable expression
[INFO] [stdout]    --> src/inference.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |       let constraints = match connection {
[INFO] [stdout]     |  _______________________-
[INFO] [stdout] 164 | |         #[cfg(feature = "sqlite")]
[INFO] [stdout] 165 | |         InferConnection::Sqlite(c) => ::sqlite::load_foreign_key_constraints(&c, schema_name),
[INFO] [stdout] 166 | |         #[cfg(feature = "postgres")]
[INFO] [stdout] ...   |
[INFO] [stdout] 173 | |         }
[INFO] [stdout] 174 | |     };
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 175 | 
[INFO] [stdout] 176 | /     constraints.map(|mut ct| {
[INFO] [stdout] 177 | |         ct.sort();
[INFO] [stdout] 178 | |         ct
[INFO] [stdout] 179 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 19 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `infer_schema_internals`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e1c9eabd0d870e81f7f81cee515d5a023c78e107183edcf886ba5fac10d19ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c9eabd0d870e81f7f81cee515d5a023c78e107183edcf886ba5fac10d19ef4", kill_on_drop: false }`
[INFO] [stdout] e1c9eabd0d870e81f7f81cee515d5a023c78e107183edcf886ba5fac10d19ef4
