[INFO] fetching crate models-proc-macro 0.1.1...
[INFO] checking models-proc-macro-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate models-proc-macro 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate models-proc-macro 0.1.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate models-proc-macro 0.1.1
[INFO] finished tweaking crates.io crate models-proc-macro 0.1.1
[INFO] tweaked toml for crates.io crate models-proc-macro 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded models-parser v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21c240411c05bb75706a599e79da02b4c22fdd9a962161d185afbb5e5abfd981
[INFO] running `Command { std: "docker" "start" "-a" "21c240411c05bb75706a599e79da02b4c22fdd9a962161d185afbb5e5abfd981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21c240411c05bb75706a599e79da02b4c22fdd9a962161d185afbb5e5abfd981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c240411c05bb75706a599e79da02b4c22fdd9a962161d185afbb5e5abfd981", kill_on_drop: false }`
[INFO] [stdout] 21c240411c05bb75706a599e79da02b4c22fdd9a962161d185afbb5e5abfd981
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4935d284d80c7b639c7c5e69fbcbafd2ab52e719b31030610fd196e29aa5a080
[INFO] running `Command { std: "docker" "start" "-a" "4935d284d80c7b639c7c5e69fbcbafd2ab52e719b31030610fd196e29aa5a080", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking proc-macro2 v1.0.79
[INFO] [stderr]     Checking models-parser v0.2.0
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking models-proc-macro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/prelude.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use collections::HashMap;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/prelude.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use proc_macro::{TokenStream, *};
[INFO] [stdout]   |                                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/prelude.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use collections::HashMap;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/prelude.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use proc_macro::{TokenStream, *};
[INFO] [stdout]   |                                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/model/constraint.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct NamedConstraint {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 10 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedConstraint` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/model/constraint.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct NamedConstraint {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 10 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NamedConstraint` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "4935d284d80c7b639c7c5e69fbcbafd2ab52e719b31030610fd196e29aa5a080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4935d284d80c7b639c7c5e69fbcbafd2ab52e719b31030610fd196e29aa5a080", kill_on_drop: false }`
[INFO] [stdout] 4935d284d80c7b639c7c5e69fbcbafd2ab52e719b31030610fd196e29aa5a080