[INFO] fetching crate opt-gen 0.0.1...
[INFO] testing opt-gen-0.0.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate opt-gen 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate opt-gen 0.0.1
[INFO] finished tweaking crates.io crate opt-gen 0.0.1
[INFO] tweaked toml for crates.io crate opt-gen 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate opt-gen 0.0.1 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 15 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48c1ebdcc3f4560521a819ffaa4e038f425787178bfb908f3eb4a52b381c823c
[INFO] running `Command { std: "docker" "start" "-a" "48c1ebdcc3f4560521a819ffaa4e038f425787178bfb908f3eb4a52b381c823c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48c1ebdcc3f4560521a819ffaa4e038f425787178bfb908f3eb4a52b381c823c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c1ebdcc3f4560521a819ffaa4e038f425787178bfb908f3eb4a52b381c823c", kill_on_drop: false }`
[INFO] [stdout] 48c1ebdcc3f4560521a819ffaa4e038f425787178bfb908f3eb4a52b381c823c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe377ec535f5e4c1099dfcdc3b730a46a18cc9d12656475a88647c87a95d820d
[INFO] running `Command { std: "docker" "start" "-a" "fe377ec535f5e4c1099dfcdc3b730a46a18cc9d12656475a88647c87a95d820d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-format v0.3.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling opt-gen v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/opt_gen.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptGenStructParse` is never constructed
[INFO] [stdout]   --> src/opt_gen.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct OptGenStructParse {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FieldParse` is never constructed
[INFO] [stdout]   --> src/opt_gen.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct FieldParse {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse` is never used
[INFO] [stdout]   --> src/opt_gen.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl OptGenStructParse {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.19s
[INFO] running `Command { std: "docker" "inspect" "fe377ec535f5e4c1099dfcdc3b730a46a18cc9d12656475a88647c87a95d820d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe377ec535f5e4c1099dfcdc3b730a46a18cc9d12656475a88647c87a95d820d", kill_on_drop: false }`
[INFO] [stdout] fe377ec535f5e4c1099dfcdc3b730a46a18cc9d12656475a88647c87a95d820d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e0e1fc4db833dbdad960fa5044f2e1693d84f65fb7fb88ecefb695d50e672fb
[INFO] running `Command { std: "docker" "start" "-a" "7e0e1fc4db833dbdad960fa5044f2e1693d84f65fb7fb88ecefb695d50e672fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling opt-gen v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/opt_gen.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptGenStructParse` is never constructed
[INFO] [stdout]   --> src/opt_gen.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct OptGenStructParse {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FieldParse` is never constructed
[INFO] [stdout]   --> src/opt_gen.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct FieldParse {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse` is never used
[INFO] [stdout]   --> src/opt_gen.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl OptGenStructParse {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/opt_gen.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptGenStructParse` is never constructed
[INFO] [stdout]   --> src/opt_gen.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct OptGenStructParse {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FieldParse` is never constructed
[INFO] [stdout]   --> src/opt_gen.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct FieldParse {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse` is never used
[INFO] [stdout]   --> src/opt_gen.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl OptGenStructParse {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "7e0e1fc4db833dbdad960fa5044f2e1693d84f65fb7fb88ecefb695d50e672fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0e1fc4db833dbdad960fa5044f2e1693d84f65fb7fb88ecefb695d50e672fb", kill_on_drop: false }`
[INFO] [stdout] 7e0e1fc4db833dbdad960fa5044f2e1693d84f65fb7fb88ecefb695d50e672fb
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 735a88ad79275476304534c8488f8d9468993b4d8e1096c1c44e0e093c6bb16b
[INFO] running `Command { std: "docker" "start" "-a" "735a88ad79275476304534c8488f8d9468993b4d8e1096c1c44e0e093c6bb16b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/opt_gen.rs:52:18
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stderr]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `OptGenStructParse` is never constructed
[INFO] [stderr]   --> src/opt_gen.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct OptGenStructParse {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FieldParse` is never constructed
[INFO] [stderr]   --> src/opt_gen.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub struct FieldParse {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `parse` is never used
[INFO] [stderr]   --> src/opt_gen.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 51 | impl OptGenStructParse {
[INFO] [stderr]    | ---------------------- associated function in this implementation
[INFO] [stderr] 52 |     pub fn parse(input: DeriveInput) -> Result<Self> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `opt-gen` (lib) generated 4 warnings
[INFO] [stderr] warning: `opt-gen` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/opt_gen-37d565fca61c9fc7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests opt_gen
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "735a88ad79275476304534c8488f8d9468993b4d8e1096c1c44e0e093c6bb16b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735a88ad79275476304534c8488f8d9468993b4d8e1096c1c44e0e093c6bb16b", kill_on_drop: false }`
[INFO] [stdout] 735a88ad79275476304534c8488f8d9468993b4d8e1096c1c44e0e093c6bb16b