[INFO] fetching crate helper_fn 0.1.0...
[INFO] checking helper_fn-0.1.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate helper_fn 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate helper_fn 0.1.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate helper_fn 0.1.0
[INFO] finished tweaking crates.io crate helper_fn 0.1.0
[INFO] tweaked toml for crates.io crate helper_fn 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc3a81f4d7d5b513db1dc53231f66898bf4ad4d183b560d5cac5c6551f4a7faa
[INFO] running `Command { std: "docker" "start" "-a" "bc3a81f4d7d5b513db1dc53231f66898bf4ad4d183b560d5cac5c6551f4a7faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc3a81f4d7d5b513db1dc53231f66898bf4ad4d183b560d5cac5c6551f4a7faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc3a81f4d7d5b513db1dc53231f66898bf4ad4d183b560d5cac5c6551f4a7faa", kill_on_drop: false }`
[INFO] [stdout] bc3a81f4d7d5b513db1dc53231f66898bf4ad4d183b560d5cac5c6551f4a7faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab2d7929fcdcd70cc10d19acafe457206274908eb5401de9f34e4200e3990b8f
[INFO] running `Command { std: "docker" "start" "-a" "ab2d7929fcdcd70cc10d19acafe457206274908eb5401de9f34e4200e3990b8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking helper_fn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `colon` is never read
[INFO] [stdout]    --> src/lib.rs:161:3
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct CaptureArgWithType {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] 160 |   capture: CaptureArg,
[INFO] [stdout] 161 |   colon: Token![:],
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgWithType` 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: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 |   Ref(Token![&]),
[INFO] [stdout]     |   --- ^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 178 |   Ref(()),
[INFO] [stdout]     |       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lib.rs:179:10
[INFO] [stdout]     |
[INFO] [stdout] 179 |   RefMut(Token![&], Token![mut]),
[INFO] [stdout]     |   ------ ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 179 |   RefMut((), ()),
[INFO] [stdout]     |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `colon` is never read
[INFO] [stdout]    --> src/lib.rs:161:3
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct CaptureArgWithType {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] 160 |   capture: CaptureArg,
[INFO] [stdout] 161 |   colon: Token![:],
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgWithType` 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: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 |   Ref(Token![&]),
[INFO] [stdout]     |   --- ^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 178 |   Ref(()),
[INFO] [stdout]     |       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lib.rs:179:10
[INFO] [stdout]     |
[INFO] [stdout] 179 |   RefMut(Token![&], Token![mut]),
[INFO] [stdout]     |   ------ ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 179 |   RefMut((), ()),
[INFO] [stdout]     |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `colon` is never read
[INFO] [stdout]    --> src/lib.rs:161:3
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct CaptureArgWithType {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] 160 |   capture: CaptureArg,
[INFO] [stdout] 161 |   colon: Token![:],
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgWithType` 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: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 |   Ref(Token![&]),
[INFO] [stdout]     |   --- ^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 178 |   Ref(()),
[INFO] [stdout]     |       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/lib.rs:179:10
[INFO] [stdout]     |
[INFO] [stdout] 179 |   RefMut(Token![&], Token![mut]),
[INFO] [stdout]     |   ------ ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 179 |   RefMut((), ()),
[INFO] [stdout]     |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `get_num`
[INFO] [stdout]   --> tests/test.rs:21:6
[INFO] [stdout]    |
[INFO] [stdout] 21 |   fn get_num() -> i32 {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `increment_num`
[INFO] [stdout]   --> tests/test.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn increment_num() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `make_num_zero`
[INFO] [stdout]   --> tests/test.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn make_num_zero() {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "ab2d7929fcdcd70cc10d19acafe457206274908eb5401de9f34e4200e3990b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2d7929fcdcd70cc10d19acafe457206274908eb5401de9f34e4200e3990b8f", kill_on_drop: false }`
[INFO] [stdout] ab2d7929fcdcd70cc10d19acafe457206274908eb5401de9f34e4200e3990b8f