[INFO] cloning repository https://github.com/Wang-tianhao/rust-rocket-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Wang-tianhao/rust-rocket-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWang-tianhao%2Frust-rocket-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWang-tianhao%2Frust-rocket-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8070f693a3bcae2816725ce1e0de4e5c226d145e
[INFO] checking Wang-tianhao/rust-rocket-demo against master#c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c for pr-123737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWang-tianhao%2Frust-rocket-demo" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Wang-tianhao/rust-rocket-demo on toolchain c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Wang-tianhao/rust-rocket-demo
[INFO] finished tweaking git repo https://github.com/Wang-tianhao/rust-rocket-demo
[INFO] tweaked toml for git repo https://github.com/Wang-tianhao/rust-rocket-demo written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Wang-tianhao/rust-rocket-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded if_chain v1.0.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.20
[INFO] [stderr]   Downloaded tinyvec v1.1.1
[INFO] [stderr]   Downloaded validator_types v0.14.0
[INFO] [stderr]   Downloaded validator v0.14.0
[INFO] [stderr]   Downloaded validator_derive v0.14.0
[INFO] [stderr]   Downloaded devise_codegen v0.4.1
[INFO] [stderr]   Downloaded is-terminal v0.4.9
[INFO] [stderr]   Downloaded salsa20 v0.9.0
[INFO] [stderr]   Downloaded proc-macro2-diagnostics v0.10.1
[INFO] [stderr]   Downloaded state v0.6.0
[INFO] [stderr]   Downloaded pem v0.8.3
[INFO] [stderr]   Downloaded simple_asn1 v0.4.1
[INFO] [stderr]   Downloaded rocket_http v0.5.0
[INFO] [stderr]   Downloaded rocket_codegen v0.5.0
[INFO] [stderr]   Downloaded diesel v2.1.3
[INFO] [stderr]   Downloaded tokio v1.19.2
[INFO] [stderr]   Downloaded rustix v0.38.20
[INFO] [stderr]   Downloaded hyper v0.14.16
[INFO] [stderr]   Downloaded rocket v0.5.0
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded idna v0.2.2
[INFO] [stderr]   Downloaded syn v2.0.33
[INFO] [stderr]   Downloaded tokio-util v0.7.3
[INFO] [stderr]   Downloaded mio v0.8.2
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded rocket_cors v0.6.0
[INFO] [stderr]   Downloaded bumpalo v3.12.0
[INFO] [stderr]   Downloaded diesel_derives v2.1.2
[INFO] [stderr]   Downloaded async-trait v0.1.52
[INFO] [stderr]   Downloaded cookie v0.18.0
[INFO] [stderr]   Downloaded httparse v1.5.1
[INFO] [stderr]   Downloaded rocket_sync_db_pools v0.1.0
[INFO] [stderr]   Downloaded hmac v0.12.0
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded cipher v0.3.0
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded serde_json v1.0.107
[INFO] [stderr]   Downloaded jsonwebtoken v7.2.0
[INFO] [stderr]   Downloaded vcpkg v0.2.11
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.5
[INFO] [stderr]   Downloaded r2d2 v0.8.9
[INFO] [stderr]   Downloaded tokio-stream v0.1.8
[INFO] [stderr]   Downloaded yansi v1.0.0-rc.1
[INFO] [stderr]   Downloaded base64ct v1.0.1
[INFO] [stderr]   Downloaded pbkdf2 v0.10.0
[INFO] [stderr]   Downloaded block-buffer v0.10.0
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded subtle v2.4.1
[INFO] [stderr]   Downloaded password-hash v0.3.2
[INFO] [stderr]   Downloaded cpufeatures v0.2.1
[INFO] [stderr]   Downloaded digest v0.10.1
[INFO] [stderr]   Downloaded sha2 v0.10.1
[INFO] [stderr]   Downloaded crypto-common v0.1.1
[INFO] [stderr]   Downloaded scrypt v0.8.1
[INFO] [stderr]   Downloaded devise_core v0.4.1
[INFO] [stderr]   Downloaded devise v0.4.1
[INFO] [stderr]   Downloaded rocket_sync_db_pools_codegen v0.1.0
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2dbe8141ac11533ca3a971bf0a265e21f61d9d118bd25cdbb64c641083b9a2a
[INFO] running `Command { std: "docker" "start" "-a" "e2dbe8141ac11533ca3a971bf0a265e21f61d9d118bd25cdbb64c641083b9a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2dbe8141ac11533ca3a971bf0a265e21f61d9d118bd25cdbb64c641083b9a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2dbe8141ac11533ca3a971bf0a265e21f61d9d118bd25cdbb64c641083b9a2a", kill_on_drop: false }`
[INFO] [stdout] e2dbe8141ac11533ca3a971bf0a265e21f61d9d118bd25cdbb64c641083b9a2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20d84ae84e455b20fef915790e8585e7eb83c69b567357fa897470ff38c97694
[INFO] running `Command { std: "docker" "start" "-a" "20d84ae84e455b20fef915790e8585e7eb83c69b567357fa897470ff38c97694", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling time-macros v0.2.15
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling yansi v1.0.0-rc.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling cookie v0.18.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling deranged v0.3.9
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling rustix v0.38.20
[INFO] [stderr]    Compiling tracing v0.1.30
[INFO] [stderr]    Compiling tokio v1.19.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling inlinable_string v0.1.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling multer v2.0.2
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling state v0.6.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rocket v0.5.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling time v0.3.30
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling rocket_sync_db_pools v0.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.5
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking password-hash v0.3.2
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking salsa20 v0.9.0
[INFO] [stderr]    Compiling diesel_table_macro_syntax v0.1.0
[INFO] [stderr]    Compiling devise_core v0.4.1
[INFO] [stderr]    Compiling validator_types v0.14.0
[INFO] [stderr]     Checking pbkdf2 v0.10.0
[INFO] [stderr]     Checking hmac v0.12.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking scrypt v0.8.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling hyper v0.14.16
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling devise_codegen v0.4.1
[INFO] [stderr]    Compiling diesel_derives v2.1.2
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling validator_derive v0.14.0
[INFO] [stderr]    Compiling devise v0.4.1
[INFO] [stderr]    Compiling rocket_sync_db_pools_codegen v0.1.0
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking pear v0.2.3
[INFO] [stderr]    Compiling rocket_http v0.5.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]    Compiling rocket_codegen v0.5.0
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ubyte v0.10.1
[INFO] [stderr]     Checking validator v0.14.0
[INFO] [stderr]     Checking diesel v2.1.3
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking jsonwebtoken v7.2.0
[INFO] [stderr]     Checking rocket_cors v0.6.0
[INFO] [stderr]     Checking realworld v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]   --> src/database/articles.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use diesel::mysql::MysqlConnection;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | use diesel::prelude::*;
[INFO] [stdout]    |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `slug` is imported redundantly
[INFO] [stdout]   --> src/database/articles.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use slug;
[INFO] [stdout]    |     ^^^^ the item `slug` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]  --> src/database/comments.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use diesel::mysql::MysqlConnection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 | use diesel::prelude::*;
[INFO] [stdout]   |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `diesel` is imported redundantly
[INFO] [stdout]   --> src/database/profiles.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use diesel;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate diesel;
[INFO] [stdout]    | -------------------- the item `diesel` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]  --> src/database/profiles.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use diesel::mysql::MysqlConnection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use diesel::prelude::*;
[INFO] [stdout]   |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]  --> src/database/users.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use diesel::mysql::MysqlConnection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use diesel::prelude::*;
[INFO] [stdout]   |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]   --> src/database/articles.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use diesel::mysql::MysqlConnection;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | use diesel::prelude::*;
[INFO] [stdout]    |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `slug` is imported redundantly
[INFO] [stdout]   --> src/database/articles.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use slug;
[INFO] [stdout]    |     ^^^^ the item `slug` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]  --> src/database/comments.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use diesel::mysql::MysqlConnection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 | use diesel::prelude::*;
[INFO] [stdout]   |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `diesel` is imported redundantly
[INFO] [stdout]   --> src/database/profiles.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use diesel;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | extern crate diesel;
[INFO] [stdout]    | -------------------- the item `diesel` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]  --> src/database/profiles.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use diesel::mysql::MysqlConnection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use diesel::prelude::*;
[INFO] [stdout]   |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MysqlConnection` is imported redundantly
[INFO] [stdout]  --> src/database/users.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use diesel::mysql::MysqlConnection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use diesel::prelude::*;
[INFO] [stdout]   |     ------------------ the item `MysqlConnection` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `article` and `author` are never read
[INFO] [stdout]   --> src/models/comment.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Comment {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub article: i32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 11 |     pub author: i32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `article` and `author` are never read
[INFO] [stdout]   --> src/models/comment.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Comment {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub article: i32,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 11 |     pub author: i32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized] target(s) in 3m 52s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: ubyte v0.10.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "20d84ae84e455b20fef915790e8585e7eb83c69b567357fa897470ff38c97694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d84ae84e455b20fef915790e8585e7eb83c69b567357fa897470ff38c97694", kill_on_drop: false }`
[INFO] [stdout] 20d84ae84e455b20fef915790e8585e7eb83c69b567357fa897470ff38c97694
[INFO] checking Wang-tianhao/rust-rocket-demo against try#5946bac294aa8e579f74aa4a4d1f443d3b5d89f8 for pr-123737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWang-tianhao%2Frust-rocket-demo" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Wang-tianhao/rust-rocket-demo on toolchain 5946bac294aa8e579f74aa4a4d1f443d3b5d89f8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5946bac294aa8e579f74aa4a4d1f443d3b5d89f8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Wang-tianhao/rust-rocket-demo
[INFO] finished tweaking git repo https://github.com/Wang-tianhao/rust-rocket-demo
[INFO] tweaked toml for git repo https://github.com/Wang-tianhao/rust-rocket-demo written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Wang-tianhao/rust-rocket-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5946bac294aa8e579f74aa4a4d1f443d3b5d89f8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5946bac294aa8e579f74aa4a4d1f443d3b5d89f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8b93cf9b0c5673a7819c0cf69e7df33448fc50216d44dc330e426daf7e26d8a
[INFO] running `Command { std: "docker" "start" "-a" "f8b93cf9b0c5673a7819c0cf69e7df33448fc50216d44dc330e426daf7e26d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b93cf9b0c5673a7819c0cf69e7df33448fc50216d44dc330e426daf7e26d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b93cf9b0c5673a7819c0cf69e7df33448fc50216d44dc330e426daf7e26d8a", kill_on_drop: false }`
[INFO] [stdout] f8b93cf9b0c5673a7819c0cf69e7df33448fc50216d44dc330e426daf7e26d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5946bac294aa8e579f74aa4a4d1f443d3b5d89f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0a77194da656d1e0cad66f150df18a6f811b3a711744902ed0a7fbda0f692f9
[INFO] running `Command { std: "docker" "start" "-a" "a0a77194da656d1e0cad66f150df18a6f811b3a711744902ed0a7fbda0f692f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling time-macros v0.2.15
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling yansi v1.0.0-rc.1
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling deranged v0.3.9
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling cookie v0.18.0
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling rustix v0.38.20
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling tracing v0.1.30
[INFO] [stderr]    Compiling tokio v1.19.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling inlinable_string v0.1.15
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling multer v2.0.2
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling state v0.6.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling rocket v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling rocket_sync_db_pools v0.1.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.5
[INFO] [stderr]    Compiling time v0.3.30
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking password-hash v0.3.2
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking salsa20 v0.9.0
[INFO] [stderr]     Checking hmac v0.12.0
[INFO] [stderr]     Checking pbkdf2 v0.10.0
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling validator_types v0.14.0
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]     Checking scrypt v0.8.1
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]    Compiling diesel_table_macro_syntax v0.1.0
[INFO] [stderr]    Compiling devise_core v0.4.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling hyper v0.14.16
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling validator_derive v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling devise_codegen v0.4.1
[INFO] [stderr]    Compiling diesel_derives v2.1.2
[INFO] [stderr]    Compiling devise v0.4.1
[INFO] [stderr]    Compiling rocket_sync_db_pools_codegen v0.1.0
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]    Compiling pear v0.2.3
[INFO] [stderr]    Compiling rocket_http v0.5.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]    Compiling rocket_codegen v0.5.0
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ubyte v0.10.1
[INFO] [stderr]     Checking validator v0.14.0
[INFO] [stderr]     Checking diesel v2.1.3
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking jsonwebtoken v7.2.0
[INFO] [stdout] error[E0491]: in type `&'b where_clause::BoxedWhereClause<'a, DB>`, reference has a longer lifetime than the data it references
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/diesel-2.1.3/src/query_builder/select_statement/boxed.rs:145:14
[INFO] [stdout]     |
[INFO] [stdout] 145 |         ) -> QueryResult<()>,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the pointer is valid for the lifetime `'b` as defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/diesel-2.1.3/src/query_builder/select_statement/boxed.rs:139:20
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn build_query<'b, 'c>(
[INFO] [stdout]     |                    ^^
[INFO] [stdout] note: but the referenced data is only valid for the lifetime `'a` as defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/diesel-2.1.3/src/query_builder/select_statement/boxed.rs:138:28
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub trait BoxedQueryHelper<'a, QS, DB> {
[INFO] [stdout]     |                            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0491`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `diesel` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a0a77194da656d1e0cad66f150df18a6f811b3a711744902ed0a7fbda0f692f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a77194da656d1e0cad66f150df18a6f811b3a711744902ed0a7fbda0f692f9", kill_on_drop: false }`
[INFO] [stdout] a0a77194da656d1e0cad66f150df18a6f811b3a711744902ed0a7fbda0f692f9