[INFO] fetching crate bitfield-register 0.2.1...
[INFO] checking bitfield-register-0.2.1 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate bitfield-register 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bitfield-register 0.2.1 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitfield-register 0.2.1
[INFO] finished tweaking crates.io crate bitfield-register 0.2.1
[INFO] tweaked toml for crates.io crate bitfield-register 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.36)
[INFO] [stderr]       Adding syn v0.11.11 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (latest: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitfield-register-macro v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56180e97e81120b59c9e1fb46dfbd93ae23ff092a0c284fc1e360985aa49c099
[INFO] running `Command { std: "docker" "start" "-a" "56180e97e81120b59c9e1fb46dfbd93ae23ff092a0c284fc1e360985aa49c099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56180e97e81120b59c9e1fb46dfbd93ae23ff092a0c284fc1e360985aa49c099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56180e97e81120b59c9e1fb46dfbd93ae23ff092a0c284fc1e360985aa49c099", kill_on_drop: false }`
[INFO] [stdout] 56180e97e81120b59c9e1fb46dfbd93ae23ff092a0c284fc1e360985aa49c099
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71bb6f00e9f79b3b4db6fb4d7305ce81dbf5f4a2ceccfe58ad77678edba72184
[INFO] running `Command { std: "docker" "start" "-a" "71bb6f00e9f79b3b4db6fb4d7305ce81dbf5f4a2ceccfe58ad77678edba72184", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling bitfield-register-macro v0.2.1
[INFO] [stdout] error[E0774]: `derive` may only be applied to `struct`s, `enum`s and `union`s
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bitfield-register-macro-0.2.1/src/lib.rs:337:5
[INFO] [stdout]     |
[INFO] [stdout] 337 |     #[derive(Debug)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ not applicable here
[INFO] [stdout] 338 |     let mut bitfields: Vec<BitField> = vec![];
[INFO] [stdout]     |     ------------------------------------------ not a `struct`, `enum` or `union`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0774`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitfield-register-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "71bb6f00e9f79b3b4db6fb4d7305ce81dbf5f4a2ceccfe58ad77678edba72184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71bb6f00e9f79b3b4db6fb4d7305ce81dbf5f4a2ceccfe58ad77678edba72184", kill_on_drop: false }`
[INFO] [stdout] 71bb6f00e9f79b3b4db6fb4d7305ce81dbf5f4a2ceccfe58ad77678edba72184
[INFO] checking bitfield-register-0.2.1 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate bitfield-register 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate bitfield-register 0.2.1 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitfield-register 0.2.1
[INFO] finished tweaking crates.io crate bitfield-register 0.2.1
[INFO] tweaked toml for crates.io crate bitfield-register 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.36)
[INFO] [stderr]       Adding syn v0.11.11 (latest: v2.0.58)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (latest: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a65ba65d332d08404eae9a370787f9feb64f74159afdf925c07393cf81b39a0
[INFO] running `Command { std: "docker" "start" "-a" "5a65ba65d332d08404eae9a370787f9feb64f74159afdf925c07393cf81b39a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a65ba65d332d08404eae9a370787f9feb64f74159afdf925c07393cf81b39a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a65ba65d332d08404eae9a370787f9feb64f74159afdf925c07393cf81b39a0", kill_on_drop: false }`
[INFO] [stdout] 5a65ba65d332d08404eae9a370787f9feb64f74159afdf925c07393cf81b39a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab84d370aa91d166b47d9a56edfd76065c346a083608382ee58100d0945314a0
[INFO] running `Command { std: "docker" "start" "-a" "ab84d370aa91d166b47d9a56edfd76065c346a083608382ee58100d0945314a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling bitfield-register-macro v0.2.1
[INFO] [stdout] error[E0774]: `derive` may only be applied to `struct`s, `enum`s and `union`s
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bitfield-register-macro-0.2.1/src/lib.rs:337:5
[INFO] [stdout]     |
[INFO] [stdout] 337 |     #[derive(Debug)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ not applicable here
[INFO] [stdout] 338 |     let mut bitfields: Vec<BitField> = vec![];
[INFO] [stdout]     |     ------------------------------------------ not a `struct`, `enum` or `union`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0774`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitfield-register-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ab84d370aa91d166b47d9a56edfd76065c346a083608382ee58100d0945314a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab84d370aa91d166b47d9a56edfd76065c346a083608382ee58100d0945314a0", kill_on_drop: false }`
[INFO] [stdout] ab84d370aa91d166b47d9a56edfd76065c346a083608382ee58100d0945314a0
