[INFO] fetching crate four-cc 0.3.0...
[INFO] checking four-cc-0.3.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124305
[INFO] extracting crate four-cc 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate four-cc 0.3.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate four-cc 0.3.0
[INFO] finished tweaking crates.io crate four-cc 0.3.0
[INFO] tweaked toml for crates.io crate four-cc 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding serde_derive_internals v0.26.0 (latest: v0.29.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.60)
[INFO] [stderr]       Adding zerocopy v0.6.6 (latest: v0.7.32)
[INFO] [stderr]       Adding zerocopy-derive v0.6.6 (latest: v0.7.32)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zerocopy v0.6.6
[INFO] [stderr]   Downloaded zerocopy-derive v0.6.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2984462a67e0bc14c3ca892ae300275bec24f2a647792c3d2d5a77881475ad46
[INFO] running `Command { std: "docker" "start" "-a" "2984462a67e0bc14c3ca892ae300275bec24f2a647792c3d2d5a77881475ad46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2984462a67e0bc14c3ca892ae300275bec24f2a647792c3d2d5a77881475ad46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2984462a67e0bc14c3ca892ae300275bec24f2a647792c3d2d5a77881475ad46", kill_on_drop: false }`
[INFO] [stdout] 2984462a67e0bc14c3ca892ae300275bec24f2a647792c3d2d5a77881475ad46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1effba3f82a923a522ca5dee0977983193ce1722bf4cbf280cb8828d0a48c98c
[INFO] running `Command { std: "docker" "start" "-a" "1effba3f82a923a522ca5dee0977983193ce1722bf4cbf280cb8828d0a48c98c", kill_on_drop: false }`
[INFO] [stderr]     Checking four-cc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "1effba3f82a923a522ca5dee0977983193ce1722bf4cbf280cb8828d0a48c98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1effba3f82a923a522ca5dee0977983193ce1722bf4cbf280cb8828d0a48c98c", kill_on_drop: false }`
[INFO] [stdout] 1effba3f82a923a522ca5dee0977983193ce1722bf4cbf280cb8828d0a48c98c
[INFO] checking four-cc-0.3.0 against try#44523379467bbd2050af931a040d10c2b764b443 for pr-124305
[INFO] extracting crate four-cc 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate four-cc 0.3.0 on toolchain 44523379467bbd2050af931a040d10c2b764b443
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate four-cc 0.3.0
[INFO] finished tweaking crates.io crate four-cc 0.3.0
[INFO] tweaked toml for crates.io crate four-cc 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "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 18 packages to latest compatible versions
[INFO] [stderr]       Adding serde_derive_internals v0.26.0 (latest: v0.29.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.60)
[INFO] [stderr]       Adding zerocopy v0.6.6 (latest: v0.7.32)
[INFO] [stderr]       Adding zerocopy-derive v0.6.6 (latest: v0.7.32)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ebabc6dcd8d0ea4c6fdcbce404c22ec6c75802ae7cea3fa4a2f4c8031e11f2d
[INFO] running `Command { std: "docker" "start" "-a" "8ebabc6dcd8d0ea4c6fdcbce404c22ec6c75802ae7cea3fa4a2f4c8031e11f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ebabc6dcd8d0ea4c6fdcbce404c22ec6c75802ae7cea3fa4a2f4c8031e11f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ebabc6dcd8d0ea4c6fdcbce404c22ec6c75802ae7cea3fa4a2f4c8031e11f2d", kill_on_drop: false }`
[INFO] [stdout] 8ebabc6dcd8d0ea4c6fdcbce404c22ec6c75802ae7cea3fa4a2f4c8031e11f2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f6cc11a6a1b96196e63d1dc339eb6f4d249af2c88e184c14da8f80bf26dfe3f
[INFO] running `Command { std: "docker" "start" "-a" "8f6cc11a6a1b96196e63d1dc339eb6f4d249af2c88e184c14da8f80bf26dfe3f", kill_on_drop: false }`
[INFO] [stderr]     Checking four-cc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0453]: deny(future_incompatible) incompatible with previous forbid
[INFO] [stdout]   --> src/lib.rs:83:27
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![deny(rust_2018_idioms, future_incompatible, missing_docs)]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]    |
[INFO] [stdout]    = note: `forbid` lint level is the default for where_clauses_object_safety
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0453]: deny(future_incompatible) incompatible with previous forbid
[INFO] [stdout]   --> src/lib.rs:83:27
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![deny(rust_2018_idioms, future_incompatible, missing_docs)]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]    |
[INFO] [stdout]    = note: `forbid` lint level is the default for where_clauses_object_safety
[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 E0453`.
[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 E0453`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `four-cc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `four-cc` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8f6cc11a6a1b96196e63d1dc339eb6f4d249af2c88e184c14da8f80bf26dfe3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6cc11a6a1b96196e63d1dc339eb6f4d249af2c88e184c14da8f80bf26dfe3f", kill_on_drop: false }`
[INFO] [stdout] 8f6cc11a6a1b96196e63d1dc339eb6f4d249af2c88e184c14da8f80bf26dfe3f