[INFO] fetching crate ibuilder_derive 0.1.8...
[INFO] testing ibuilder_derive-0.1.8 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate ibuilder_derive 0.1.8 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate ibuilder_derive 0.1.8 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibuilder_derive 0.1.8
[INFO] finished tweaking crates.io crate ibuilder_derive 0.1.8
[INFO] tweaked toml for crates.io crate ibuilder_derive 0.1.8 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "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: v2.0.66)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6210a1d0bd4bb53fa607715f6957e2452c9730dbae311d466433dac1ed5cc2d7
[INFO] running `Command { std: "docker" "start" "-a" "6210a1d0bd4bb53fa607715f6957e2452c9730dbae311d466433dac1ed5cc2d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6210a1d0bd4bb53fa607715f6957e2452c9730dbae311d466433dac1ed5cc2d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6210a1d0bd4bb53fa607715f6957e2452c9730dbae311d466433dac1ed5cc2d7", kill_on_drop: false }`
[INFO] [stdout] 6210a1d0bd4bb53fa607715f6957e2452c9730dbae311d466433dac1ed5cc2d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 481c4b41df7cfaef671e37650e7ff5bc6e9c8c0290ac9c78f5a15ea43bea1598
[INFO] running `Command { std: "docker" "start" "-a" "481c4b41df7cfaef671e37650e7ff5bc6e9c8c0290ac9c78f5a15ea43bea1598", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ibuilder_derive v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "481c4b41df7cfaef671e37650e7ff5bc6e9c8c0290ac9c78f5a15ea43bea1598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "481c4b41df7cfaef671e37650e7ff5bc6e9c8c0290ac9c78f5a15ea43bea1598", kill_on_drop: false }`
[INFO] [stdout] 481c4b41df7cfaef671e37650e7ff5bc6e9c8c0290ac9c78f5a15ea43bea1598
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8f65ff1b3e3c328ea7e58cbdabea7d8bce71ce2667a8782fb7146bb57b41cb3
[INFO] running `Command { std: "docker" "start" "-a" "e8f65ff1b3e3c328ea7e58cbdabea7d8bce71ce2667a8782fb7146bb57b41cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling ibuilder_derive v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "e8f65ff1b3e3c328ea7e58cbdabea7d8bce71ce2667a8782fb7146bb57b41cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f65ff1b3e3c328ea7e58cbdabea7d8bce71ce2667a8782fb7146bb57b41cb3", kill_on_drop: false }`
[INFO] [stdout] e8f65ff1b3e3c328ea7e58cbdabea7d8bce71ce2667a8782fb7146bb57b41cb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2cecf07a4df4a5bd2ef6e86c017196bf1eed0a6317d8e56a0ebf1fdf5b2079ba
[INFO] running `Command { std: "docker" "start" "-a" "2cecf07a4df4a5bd2ef6e86c017196bf1eed0a6317d8e56a0ebf1fdf5b2079ba", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ibuilder_derive-8e0b87e1604bf5dd)
[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 ibuilder_derive
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - ibuilder_derive (line 129) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 10) ... FAILED
[INFO] [stdout] test src/lib.rs - ibuilder_derive (line 146) ... FAILED
[INFO] [stdout] test src/lib.rs - ibuilder_derive (line 76) ... FAILED
[INFO] [stdout] test src/lib.rs - ibuilder_derive (line 52) ... FAILED
[INFO] [stdout] test src/lib.rs - ibuilder_derive (line 103) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - ibuilder_derive (line 129) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:132:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:132:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use syn::Field;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 10) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:13:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ibuilder_derive (line 146) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:149:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:156:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:156:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use syn::Field;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ibuilder_derive (line 76) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:79:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:85:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:85:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:85:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use syn::Field;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ibuilder_derive (line 52) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:55:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use syn::Field;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ibuilder_derive (line 103) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:106:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(IBuilder)]
[INFO] [stdout]   |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:117:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:117:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]   --> src/lib.rs:117:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(IBuilder)]
[INFO] [stdout]    |          ^^^^^^^^ use of undeclared crate or module `ibuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `IBuilder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use syn::Field;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 10)
[INFO] [stdout]     src/lib.rs - ibuilder_derive (line 103)
[INFO] [stdout]     src/lib.rs - ibuilder_derive (line 129)
[INFO] [stdout]     src/lib.rs - ibuilder_derive (line 146)
[INFO] [stdout]     src/lib.rs - ibuilder_derive (line 52)
[INFO] [stdout]     src/lib.rs - ibuilder_derive (line 76)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2cecf07a4df4a5bd2ef6e86c017196bf1eed0a6317d8e56a0ebf1fdf5b2079ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cecf07a4df4a5bd2ef6e86c017196bf1eed0a6317d8e56a0ebf1fdf5b2079ba", kill_on_drop: false }`
[INFO] [stdout] 2cecf07a4df4a5bd2ef6e86c017196bf1eed0a6317d8e56a0ebf1fdf5b2079ba
