[INFO] fetching crate ibuilder_derive 0.1.8...
[INFO] testing ibuilder_derive-0.1.8 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate ibuilder_derive 0.1.8 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ibuilder_derive 0.1.8 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "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-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29b8a20ee75e6fdc3f254b31075bf82f60caf47402877577d72a36ed51445751
[INFO] running `Command { std: "docker" "start" "-a" "29b8a20ee75e6fdc3f254b31075bf82f60caf47402877577d72a36ed51445751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29b8a20ee75e6fdc3f254b31075bf82f60caf47402877577d72a36ed51445751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29b8a20ee75e6fdc3f254b31075bf82f60caf47402877577d72a36ed51445751", kill_on_drop: false }`
[INFO] [stdout] 29b8a20ee75e6fdc3f254b31075bf82f60caf47402877577d72a36ed51445751
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42bae6a2abd0fd2da446c47376aa7eb5451d23a0bcf0d8beb6b8173a744f8263
[INFO] running `Command { std: "docker" "start" "-a" "42bae6a2abd0fd2da446c47376aa7eb5451d23a0bcf0d8beb6b8173a744f8263", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[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 [unoptimized + debuginfo] target(s) in 4.64s
[INFO] running `Command { std: "docker" "inspect" "42bae6a2abd0fd2da446c47376aa7eb5451d23a0bcf0d8beb6b8173a744f8263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42bae6a2abd0fd2da446c47376aa7eb5451d23a0bcf0d8beb6b8173a744f8263", kill_on_drop: false }`
[INFO] [stdout] 42bae6a2abd0fd2da446c47376aa7eb5451d23a0bcf0d8beb6b8173a744f8263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71e450c9e8025899b8779970609a5b5ec8d2da843acbec31589d48c4a5c0bead
[INFO] running `Command { std: "docker" "start" "-a" "71e450c9e8025899b8779970609a5b5ec8d2da843acbec31589d48c4a5c0bead", kill_on_drop: false }`
[INFO] [stderr]    Compiling ibuilder_derive v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "71e450c9e8025899b8779970609a5b5ec8d2da843acbec31589d48c4a5c0bead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e450c9e8025899b8779970609a5b5ec8d2da843acbec31589d48c4a5c0bead", kill_on_drop: false }`
[INFO] [stdout] 71e450c9e8025899b8779970609a5b5ec8d2da843acbec31589d48c4a5c0bead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] faf15b33295bcffce0b3026c830cbf5276689a7a72e92332b1dfab51ccda64dd
[INFO] running `Command { std: "docker" "start" "-a" "faf15b33295bcffce0b3026c830cbf5276689a7a72e92332b1dfab51ccda64dd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ibuilder_derive-840560c64b0f055d)
[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 52) ... 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 129) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 10) ... 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 52) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:54:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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:60:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[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:60:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[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:60:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[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] help: if you import `Field`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(IBuilder)]
[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 146) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:148:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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:155:10
[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:155:10
[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] help: if you import `Field`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(IBuilder)]
[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:78:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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:84:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[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:84:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[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:84:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[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] help: if you import `Field`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(IBuilder)]
[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 129) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:131:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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:131:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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] help: if you import `Field`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(IBuilder)]
[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:12:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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 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 103) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ibuilder`
[INFO] [stdout]  --> src/lib.rs:105:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[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:116:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[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:116:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[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 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] 
[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 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "faf15b33295bcffce0b3026c830cbf5276689a7a72e92332b1dfab51ccda64dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faf15b33295bcffce0b3026c830cbf5276689a7a72e92332b1dfab51ccda64dd", kill_on_drop: false }`
[INFO] [stdout] faf15b33295bcffce0b3026c830cbf5276689a7a72e92332b1dfab51ccda64dd
