[INFO] fetching crate set_enum_fields 0.1.5...
[INFO] building set_enum_fields-0.1.5 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate set_enum_fields 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate set_enum_fields 0.1.5
[INFO] finished tweaking crates.io crate set_enum_fields 0.1.5
[INFO] tweaked toml for crates.io crate set_enum_fields 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate set_enum_fields 0.1.5 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding derive-syn-parse v0.1.5 (available: v0.2.0)
[INFO] [stderr]       Adding executors v0.9.0 (available: v0.10.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2516a85ec2e630aff5231f27570fae09c87a87132b22c8fa6b70cc3db7a16ca6
[INFO] running `Command { std: "docker" "start" "-a" "2516a85ec2e630aff5231f27570fae09c87a87132b22c8fa6b70cc3db7a16ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2516a85ec2e630aff5231f27570fae09c87a87132b22c8fa6b70cc3db7a16ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2516a85ec2e630aff5231f27570fae09c87a87132b22c8fa6b70cc3db7a16ca6", kill_on_drop: false }`
[INFO] [stdout] 2516a85ec2e630aff5231f27570fae09c87a87132b22c8fa6b70cc3db7a16ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 614879b5b5295ea3a7d6202ba8d461340842c1d8a1deacd3e79c378bfcd3f029
[INFO] running `Command { std: "docker" "start" "-a" "614879b5b5295ea3a7d6202ba8d461340842c1d8a1deacd3e79c378bfcd3f029", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling synchronoise v1.0.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling arr_macro_impl v0.1.3
[INFO] [stderr]    Compiling derive-syn-parse v0.1.5
[INFO] [stderr]    Compiling arr_macro v0.1.3
[INFO] [stderr]    Compiling executors v0.9.0
[INFO] [stderr]    Compiling set_enum_fields v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]   --> src/lib.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | use quote::{quote, ToTokens};
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_idents`
[INFO] [stdout]   --> src/lib.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut field_idents: Vec<Ident> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_idents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_name_ident`
[INFO] [stdout]   --> src/lib.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let field_name_ident = Ident::new(&field_name, Span::call_site());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_name_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut field_idents: Vec<Ident> = vec![];
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "614879b5b5295ea3a7d6202ba8d461340842c1d8a1deacd3e79c378bfcd3f029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "614879b5b5295ea3a7d6202ba8d461340842c1d8a1deacd3e79c378bfcd3f029", kill_on_drop: false }`
[INFO] [stdout] 614879b5b5295ea3a7d6202ba8d461340842c1d8a1deacd3e79c378bfcd3f029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 295015cfa7817359c937fd15b7b5ba6084e8c8abb535a155c472adcb67c5eb5e
[INFO] running `Command { std: "docker" "start" "-a" "295015cfa7817359c937fd15b7b5ba6084e8c8abb535a155c472adcb67c5eb5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling set_enum_fields v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]   --> src/lib.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | use quote::{quote, ToTokens};
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToTokens`
[INFO] [stdout]   --> src/lib.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | use quote::{quote, ToTokens};
[INFO] [stdout]    |                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_idents`
[INFO] [stdout]   --> src/lib.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut field_idents: Vec<Ident> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_idents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_name_ident`
[INFO] [stdout]   --> src/lib.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let field_name_ident = Ident::new(&field_name, Span::call_site());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_name_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut field_idents: Vec<Ident> = vec![];
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_idents`
[INFO] [stdout]   --> src/lib.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut field_idents: Vec<Ident> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_idents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field_name_ident`
[INFO] [stdout]   --> src/lib.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let field_name_ident = Ident::new(&field_name, Span::call_site());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_field_name_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut field_idents: Vec<Ident> = vec![];
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "295015cfa7817359c937fd15b7b5ba6084e8c8abb535a155c472adcb67c5eb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295015cfa7817359c937fd15b7b5ba6084e8c8abb535a155c472adcb67c5eb5e", kill_on_drop: false }`
[INFO] [stdout] 295015cfa7817359c937fd15b7b5ba6084e8c8abb535a155c472adcb67c5eb5e
