[INFO] fetching crate preftool-derive-core 0.2.0...
[INFO] testing preftool-derive-core-0.2.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate preftool-derive-core 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate preftool-derive-core 0.2.0
[INFO] finished tweaking crates.io crate preftool-derive-core 0.2.0
[INFO] tweaked toml for crates.io crate preftool-derive-core 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate preftool-derive-core 0.2.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 17 packages to highest compatible versions
[INFO] [stderr]       Adding darling v0.9.0 (available: v0.24.1)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (available: v1.0.107)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.47)
[INFO] [stderr]       Adding syn v0.15.44 (available: v3.0.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | homepage = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 | repository = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186
[INFO] running `Command { std: "docker" "start" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | homepage = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 | repository = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.5.1
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling preftool-derive-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]   --> src/lib.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct FieldOptions {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 73 |   attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `fields` are never read
[INFO] [stdout]    --> src/lib.rs:107:3
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct VariantOptions {
[INFO] [stdout]     |        -------------- fields in this struct
[INFO] [stdout] 107 |   ident: syn::Ident,
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 108 |   fields: darling::ast::Fields<FieldOptions>,
[INFO] [stdout]     |   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariantOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `Inflector`
[INFO] [stderr]  --> Cargo.toml:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | [dependencies.Inflector]
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `Inflector`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.04s
[INFO] running `Command { std: "docker" "inspect" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | homepage = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 | repository = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] [stderr]    Compiling preftool-derive-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]   --> src/lib.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct FieldOptions {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 73 |   attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `fields` are never read
[INFO] [stdout]    --> src/lib.rs:107:3
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct VariantOptions {
[INFO] [stdout]     |        -------------- fields in this struct
[INFO] [stdout] 107 |   ident: syn::Ident,
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 108 |   fields: darling::ast::Fields<FieldOptions>,
[INFO] [stdout]     |   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariantOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]   --> src/lib.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct FieldOptions {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 73 |   attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `fields` are never read
[INFO] [stdout]    --> src/lib.rs:107:3
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct VariantOptions {
[INFO] [stdout]     |        -------------- fields in this struct
[INFO] [stdout] 107 |   ident: syn::Ident,
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 108 |   fields: darling::ast::Fields<FieldOptions>,
[INFO] [stdout]     |   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariantOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `Inflector`
[INFO] [stderr]  --> Cargo.toml:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | [dependencies.Inflector]
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `Inflector`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | homepage = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 | repository = "https://github.com/YoloDev/preftool"
[INFO] [stderr]    |              -------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] [stderr] warning: field `attrs` is never read
[INFO] [stderr]   --> src/lib.rs:73:3
[INFO] [stderr]    |
[INFO] [stderr] 59 | struct FieldOptions {
[INFO] [stderr]    |        ------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 73 |   attrs: Vec<syn::Attribute>,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ident` and `fields` are never read
[INFO] [stderr]    --> src/lib.rs:107:3
[INFO] [stderr]     |
[INFO] [stderr] 106 | struct VariantOptions {
[INFO] [stderr]     |        -------------- fields in this struct
[INFO] [stderr] 107 |   ident: syn::Ident,
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 108 |   fields: darling::ast::Fields<FieldOptions>,
[INFO] [stderr]     |   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `VariantOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `preftool-derive-core` (lib) generated 2 warnings
[INFO] [stderr] warning: `preftool-derive-core` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: unused dependency `Inflector`
[INFO] [stderr]  --> Cargo.toml:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | [dependencies.Inflector]
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `Inflector`
[INFO] [stderr] warning: `preftool-derive-core` (manifest) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/preftool-derive-core/4a4ca9995d9115fa/out/preftool_derive_core-4a4ca9995d9115fa)
[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 preftool_derive_core
[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" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186", kill_on_drop: false }`
[INFO] [stdout] e357ea6a8b788a35415c9303d5309133873cf210db89364067250d5d3ca1c186
