[INFO] fetching crate builder-pattern 0.4.2...
[INFO] testing builder-pattern-0.4.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate builder-pattern 0.4.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate builder-pattern 0.4.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate builder-pattern 0.4.2
[INFO] finished tweaking crates.io crate builder-pattern 0.4.2
[INFO] tweaked toml for crates.io crate builder-pattern 0.4.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate builder-pattern 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e91ecbc6424e7de8355961eeb748e49b0d5d4c2a4a25e1f05b8c24c5c42c87a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e91ecbc6424e7de8355961eeb748e49b0d5d4c2a4a25e1f05b8c24c5c42c87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e91ecbc6424e7de8355961eeb748e49b0d5d4c2a4a25e1f05b8c24c5c42c87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e91ecbc6424e7de8355961eeb748e49b0d5d4c2a4a25e1f05b8c24c5c42c87a", kill_on_drop: false }`
[INFO] [stdout] 0e91ecbc6424e7de8355961eeb748e49b0d5d4c2a4a25e1f05b8c24c5c42c87a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c1266e54f72473f5765ec263a2a9f5415a98b43541241d178256a825adb8f01
[INFO] running `Command { std: "docker" "start" "-a" "7c1266e54f72473f5765ec263a2a9f5415a98b43541241d178256a825adb8f01", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.78
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling builder-pattern-macro v0.4.2
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling builder-pattern v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.65s
[INFO] running `Command { std: "docker" "inspect" "7c1266e54f72473f5765ec263a2a9f5415a98b43541241d178256a825adb8f01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c1266e54f72473f5765ec263a2a9f5415a98b43541241d178256a825adb8f01", kill_on_drop: false }`
[INFO] [stdout] 7c1266e54f72473f5765ec263a2a9f5415a98b43541241d178256a825adb8f01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d45052359d55d3558f6596c1a238f4bbb97a8a6dc4411c4d72ed2d7b7a84edce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d45052359d55d3558f6596c1a238f4bbb97a8a6dc4411c4d72ed2d7b7a84edce", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling tokio-macros v1.4.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling tokio-stream v0.1.7
[INFO] [stderr]    Compiling tokio-test v0.4.2
[INFO] [stderr]    Compiling builder-pattern v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `c`
[INFO] [stdout]   --> examples/visibility2.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         c: f64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> examples/documentation.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]   --> examples/documentation.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub age: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `city`
[INFO] [stdout]   --> examples/documentation.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub city: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c`
[INFO] [stdout]   --> examples/visibility1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         c: f64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> examples/default.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     id: Uuid,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `PrivateTest`
[INFO] [stdout]   --> examples/fail-visibility1.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let t1 = PrivateTest::new().a(333).c(1.234).b("hello").build();
[INFO] [stdout]    |              ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] note: struct `crate::test::PrivateTest` exists but is inaccessible
[INFO] [stdout]   --> examples/fail-visibility1.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  |     struct PrivateTest {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ not accessible
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `builder-pattern` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0624]: associated function `c` is private
[INFO] [stdout]   --> examples/fail-visibility2.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 5  |     #[derive(Builder, Debug)]
[INFO] [stdout]    |              ------- private associated function defined here
[INFO] [stdout] ...
[INFO] [stdout] 19 |         .c(1.234) // Cannot access `c` because it is private.
[INFO] [stdout]    |          ^ private associated function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0624`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d45052359d55d3558f6596c1a238f4bbb97a8a6dc4411c4d72ed2d7b7a84edce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45052359d55d3558f6596c1a238f4bbb97a8a6dc4411c4d72ed2d7b7a84edce", kill_on_drop: false }`
[INFO] [stdout] d45052359d55d3558f6596c1a238f4bbb97a8a6dc4411c4d72ed2d7b7a84edce