[INFO] crate cn-stratum 0.4.0 is already in cache
[INFO] extracting crate cn-stratum 0.4.0 into work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/cn-stratum/0.4.0
[INFO] extracting crate cn-stratum 0.4.0 into work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/cn-stratum/0.4.0
[INFO] validating manifest of cn-stratum-0.4.0 on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cn-stratum-0.4.0 on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cn-stratum-0.4.0
[INFO] finished frobbing cn-stratum-0.4.0
[INFO] frobbed toml for cn-stratum-0.4.0 written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/cn-stratum/0.4.0/Cargo.toml
[INFO] started frobbing cn-stratum-0.4.0
[INFO] finished frobbing cn-stratum-0.4.0
[INFO] frobbed toml for cn-stratum-0.4.0 written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/cn-stratum/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cn-stratum-0.4.0 against master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-1/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/cn-stratum/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 37bbbaf4c078342e88bcde775d900ae8a2493e8d4e63fd747f1ce5fa900b9105
[INFO] running `"docker" "start" "-a" "37bbbaf4c078342e88bcde775d900ae8a2493e8d4e63fd747f1ce5fa900b9105"`
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking cn-stratum v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stderr]    --> src/hexbytes.rs:130:14
[INFO] [stderr]     |
[INFO] [stderr] 130 |     #[derive(Deserialize)]
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
[INFO] [stderr]    --> src/hexbytes.rs:131:23
[INFO] [stderr]     |
[INFO] [stderr] 131 |     struct Hex64leOut(#[serde(deserialize_with = "hex64le_to_int")] (u64, usize));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add #![feature(custom_attribute)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `cn-stratum`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "37bbbaf4c078342e88bcde775d900ae8a2493e8d4e63fd747f1ce5fa900b9105"`
[INFO] running `"docker" "rm" "-f" "37bbbaf4c078342e88bcde775d900ae8a2493e8d4e63fd747f1ce5fa900b9105"`
[INFO] [stdout] 37bbbaf4c078342e88bcde775d900ae8a2493e8d4e63fd747f1ce5fa900b9105