[INFO] fetching crate essence_macros 0.2.1...
[INFO] checking essence_macros-0.2.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate essence_macros 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate essence_macros 0.2.1
[INFO] finished tweaking crates.io crate essence_macros 0.2.1
[INFO] tweaked toml for crates.io crate essence_macros 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate essence_macros 0.2.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.20.11 (available: v0.21.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1300cda59fd77ea1ead778fd212479f1417a3e6f9a8171c82afff9c96071c14
[INFO] running `Command { std: "docker" "start" "-a" "e1300cda59fd77ea1ead778fd212479f1417a3e6f9a8171c82afff9c96071c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1300cda59fd77ea1ead778fd212479f1417a3e6f9a8171c82afff9c96071c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1300cda59fd77ea1ead778fd212479f1417a3e6f9a8171c82afff9c96071c14", kill_on_drop: false }`
[INFO] [stdout] e1300cda59fd77ea1ead778fd212479f1417a3e6f9a8171c82afff9c96071c14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1365139e6d720dfd8555f05765e7264aae6b038cb17be0720ffc1120593132da
[INFO] running `Command { std: "docker" "start" "-a" "1365139e6d720dfd8555f05765e7264aae6b038cb17be0720ffc1120593132da", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking darling_core v0.20.11
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking darling v0.20.11
[INFO] [stderr]     Checking essence_macros v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let mut pk = opts.pk;
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_in` is never read
[INFO] [stdout]   --> src/models.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct FieldOpts {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub is_in: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldOpts` 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: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:235:59
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let pk_field = self.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout]     |                                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `FieldOpts` does not implement `Clone`, so calling `clone` on `&FieldOpts` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 235 -         let pk_field = self.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout] 235 +         let pk_field = self.iter().find(|x| x.pk).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `FieldOpts`, implement `Clone` for it
[INFO] [stdout]    --> src/models.rs:59:1
[INFO] [stdout]     |
[INFO] [stdout]  59 + #[derive(Clone)]
[INFO] [stdout]  60 | pub struct FieldOpts {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:351:61
[INFO] [stdout]     |
[INFO] [stdout] 351 |     let pk_field = field_opts.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout]     |                                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `FieldOpts` does not implement `Clone`, so calling `clone` on `&FieldOpts` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 351 -     let pk_field = field_opts.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout] 351 +     let pk_field = field_opts.iter().find(|x| x.pk).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `FieldOpts`, implement `Clone` for it
[INFO] [stdout]    --> src/models.rs:59:1
[INFO] [stdout]     |
[INFO] [stdout]  59 + #[derive(Clone)]
[INFO] [stdout]  60 | pub struct FieldOpts {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let mut pk = opts.pk;
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_in` is never read
[INFO] [stdout]   --> src/models.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct FieldOpts {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub is_in: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldOpts` 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: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:235:59
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let pk_field = self.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout]     |                                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `FieldOpts` does not implement `Clone`, so calling `clone` on `&FieldOpts` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 235 -         let pk_field = self.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout] 235 +         let pk_field = self.iter().find(|x| x.pk).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `FieldOpts`, implement `Clone` for it
[INFO] [stdout]    --> src/models.rs:59:1
[INFO] [stdout]     |
[INFO] [stdout]  59 + #[derive(Clone)]
[INFO] [stdout]  60 | pub struct FieldOpts {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:351:61
[INFO] [stdout]     |
[INFO] [stdout] 351 |     let pk_field = field_opts.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout]     |                                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `FieldOpts` does not implement `Clone`, so calling `clone` on `&FieldOpts` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 351 -     let pk_field = field_opts.iter().find(|x| x.pk).unwrap().clone();
[INFO] [stdout] 351 +     let pk_field = field_opts.iter().find(|x| x.pk).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `FieldOpts`, implement `Clone` for it
[INFO] [stdout]    --> src/models.rs:59:1
[INFO] [stdout]     |
[INFO] [stdout]  59 + #[derive(Clone)]
[INFO] [stdout]  60 | pub struct FieldOpts {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.68s
[INFO] running `Command { std: "docker" "inspect" "1365139e6d720dfd8555f05765e7264aae6b038cb17be0720ffc1120593132da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1365139e6d720dfd8555f05765e7264aae6b038cb17be0720ffc1120593132da", kill_on_drop: false }`
[INFO] [stdout] 1365139e6d720dfd8555f05765e7264aae6b038cb17be0720ffc1120593132da