[INFO] fetching crate diesel_derive_model 0.1.0...
[INFO] testing diesel_derive_model-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate diesel_derive_model 0.1.0 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate diesel_derive_model 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diesel_derive_model 0.1.0
[INFO] finished tweaking crates.io crate diesel_derive_model 0.1.0
[INFO] tweaked toml for crates.io crate diesel_derive_model 0.1.0 written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b64f4ce3c68e8226c9d0df209e8603ee72b404555607c1e9098df39cfecd1b3
[INFO] running `Command { std: "docker" "start" "-a" "4b64f4ce3c68e8226c9d0df209e8603ee72b404555607c1e9098df39cfecd1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b64f4ce3c68e8226c9d0df209e8603ee72b404555607c1e9098df39cfecd1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b64f4ce3c68e8226c9d0df209e8603ee72b404555607c1e9098df39cfecd1b3", kill_on_drop: false }`
[INFO] [stdout] 4b64f4ce3c68e8226c9d0df209e8603ee72b404555607c1e9098df39cfecd1b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27d562be3a09a80cdab7bb4ef2eeffb4bf59872667361f2591361bbe1843d7b1
[INFO] running `Command { std: "docker" "start" "-a" "27d562be3a09a80cdab7bb4ef2eeffb4bf59872667361f2591361bbe1843d7b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling diesel_derive_model v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_crate_item_prelude)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `extern_crate_item_prelude` has been stable since 1.31.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/lib.rs:84:34
[INFO] [stdout]    |
[INFO] [stdout] 84 |         .skip_while(|line| !line.trim_left().starts_with("#[model_id"))
[INFO] [stdout]    |                                  ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]    --> src/lib.rs:105:34
[INFO] [stdout]     |
[INFO] [stdout] 105 |         .skip_while(|line| !line.trim_left().starts_with("#[table_name ="))
[INFO] [stdout]     |                                  ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `diesel_derive_model` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "27d562be3a09a80cdab7bb4ef2eeffb4bf59872667361f2591361bbe1843d7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27d562be3a09a80cdab7bb4ef2eeffb4bf59872667361f2591361bbe1843d7b1", kill_on_drop: false }`
[INFO] [stdout] 27d562be3a09a80cdab7bb4ef2eeffb4bf59872667361f2591361bbe1843d7b1