[INFO] cloning repository https://github.com/bitsparrow/bitsparrow-derive
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bitsparrow/bitsparrow-derive" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitsparrow%2Fbitsparrow-derive", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitsparrow%2Fbitsparrow-derive'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21770472e61c2653ca7b5fe3c04f0a9b987b77f0
[INFO] checking bitsparrow/bitsparrow-derive against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitsparrow%2Fbitsparrow-derive" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bitsparrow/bitsparrow-derive on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bitsparrow/bitsparrow-derive
[INFO] finished tweaking git repo https://github.com/bitsparrow/bitsparrow-derive
[INFO] tweaked toml for git repo https://github.com/bitsparrow/bitsparrow-derive written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bitsparrow/bitsparrow-derive already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.11.4
[INFO] [stderr]   Downloaded bitsparrow v2.0.0-rc4
[INFO] [stderr]   Downloaded serde_codegen_internals v0.14.0
[INFO] [stderr]   Downloaded quote v0.3.12
[INFO] [stderr]   Downloaded serde_derive v0.9.8
[INFO] [stderr]   Downloaded serde-bench v0.0.5
[INFO] [stderr]   Downloaded serde v0.9.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 283a0f31d46ce4f945b21f5f54b0190f68a8269b36ad846836860def52583b44
[INFO] running `Command { std: "docker" "start" "-a" "283a0f31d46ce4f945b21f5f54b0190f68a8269b36ad846836860def52583b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "283a0f31d46ce4f945b21f5f54b0190f68a8269b36ad846836860def52583b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "283a0f31d46ce4f945b21f5f54b0190f68a8269b36ad846836860def52583b44", kill_on_drop: false }`
[INFO] [stdout] 283a0f31d46ce4f945b21f5f54b0190f68a8269b36ad846836860def52583b44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5377ad9b6e400f144349c8dd93b8a4c19cce5566af8a87dbace49877c97adf9
[INFO] running `Command { std: "docker" "start" "-a" "f5377ad9b6e400f144349c8dd93b8a4c19cce5566af8a87dbace49877c97adf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking serde v0.9.8
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking bitsparrow v2.0.0-rc4
[INFO] [stderr]     Checking syn v0.11.4
[INFO] [stderr]     Checking bitsparrow-derive v2.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.0
[INFO] [stderr]    Compiling serde_derive v0.9.8
[INFO] [stderr]     Checking serde-bench v0.0.5
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.73s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.11.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "f5377ad9b6e400f144349c8dd93b8a4c19cce5566af8a87dbace49877c97adf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5377ad9b6e400f144349c8dd93b8a4c19cce5566af8a87dbace49877c97adf9", kill_on_drop: false }`
[INFO] [stdout] f5377ad9b6e400f144349c8dd93b8a4c19cce5566af8a87dbace49877c97adf9
[INFO] checking bitsparrow/bitsparrow-derive against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitsparrow%2Fbitsparrow-derive" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bitsparrow/bitsparrow-derive on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bitsparrow/bitsparrow-derive
[INFO] finished tweaking git repo https://github.com/bitsparrow/bitsparrow-derive
[INFO] tweaked toml for git repo https://github.com/bitsparrow/bitsparrow-derive written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bitsparrow/bitsparrow-derive already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2376fd673571560b156b6f2dea7f64b4fcbba4fa39a220d07204d8b655138ca
[INFO] running `Command { std: "docker" "start" "-a" "d2376fd673571560b156b6f2dea7f64b4fcbba4fa39a220d07204d8b655138ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2376fd673571560b156b6f2dea7f64b4fcbba4fa39a220d07204d8b655138ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2376fd673571560b156b6f2dea7f64b4fcbba4fa39a220d07204d8b655138ca", kill_on_drop: false }`
[INFO] [stdout] d2376fd673571560b156b6f2dea7f64b4fcbba4fa39a220d07204d8b655138ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2279bc41a7af213a8cf999aa7d3cb8396390f95fb70487cf21a9ba1ff0afd5b
[INFO] running `Command { std: "docker" "start" "-a" "f2279bc41a7af213a8cf999aa7d3cb8396390f95fb70487cf21a9ba1ff0afd5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking serde v0.9.8
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking bitsparrow v2.0.0-rc4
[INFO] [stderr]     Checking syn v0.11.4
[INFO] [stderr]     Checking bitsparrow-derive v2.0.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.0
[INFO] [stderr]    Compiling serde_derive v0.9.8
[INFO] [stderr]     Checking serde-bench v0.0.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/derive.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[derive(BitEncode, BitDecode, PartialEq, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `BitEncode` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitsparrow-derive` (test "derive") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f2279bc41a7af213a8cf999aa7d3cb8396390f95fb70487cf21a9ba1ff0afd5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2279bc41a7af213a8cf999aa7d3cb8396390f95fb70487cf21a9ba1ff0afd5b", kill_on_drop: false }`
[INFO] [stdout] f2279bc41a7af213a8cf999aa7d3cb8396390f95fb70487cf21a9ba1ff0afd5b