[INFO] crate libsecp256k1-rs 0.2.4 is already in cache
[INFO] extracting crate libsecp256k1-rs 0.2.4 into work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/libsecp256k1-rs/0.2.4
[INFO] extracting crate libsecp256k1-rs 0.2.4 into work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/libsecp256k1-rs/0.2.4
[INFO] validating manifest of libsecp256k1-rs-0.2.4 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of libsecp256k1-rs-0.2.4 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing libsecp256k1-rs-0.2.4
[INFO] finished frobbing libsecp256k1-rs-0.2.4
[INFO] frobbed toml for libsecp256k1-rs-0.2.4 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/libsecp256k1-rs/0.2.4/Cargo.toml
[INFO] started frobbing libsecp256k1-rs-0.2.4
[INFO] finished frobbing libsecp256k1-rs-0.2.4
[INFO] frobbed toml for libsecp256k1-rs-0.2.4 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/libsecp256k1-rs/0.2.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking libsecp256k1-rs-0.2.4 against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-4/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/libsecp256k1-rs/0.2.4:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 03e79cc85d8fb3eae8933fa795d58f5e6775367f0ed119c12c3146433db7b562
[INFO] running `"docker" "start" "-a" "03e79cc85d8fb3eae8933fa795d58f5e6775367f0ed119c12c3146433db7b562"`
[INFO] [stderr]    Compiling secp256k1-test v0.7.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]     Checking hmac-drbg v0.1.2
[INFO] [stderr]     Checking libsecp256k1-rs v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/secp256k1/keys.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         write!(f, "{}", self.to_hex(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/secp256k1/keys.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         write!(f, "{}", self.to_hex(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `secp256k1`
[INFO] [stderr]  --> benches/signature.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use secp256k1::Signature;
[INFO] [stderr]   |     ^^^^^^^^^ maybe a missing `extern crate secp256k1;`?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error[E0432]: unresolved import `secp256k1`
[INFO] [stderr]  --> benches/public_key.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use secp256k1::PublicKey;
[INFO] [stderr]   |     ^^^^^^^^^ maybe a missing `extern crate secp256k1;`?
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `libsecp256k1-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `libsecp256k1-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `secp256k1`
[INFO] [stderr]   --> benches/sign.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use secp256k1::{sign, Message, SecretKey};
[INFO] [stderr]    |     ^^^^^^^^^ maybe a missing `extern crate secp256k1;`?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `libsecp256k1-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "03e79cc85d8fb3eae8933fa795d58f5e6775367f0ed119c12c3146433db7b562"`
[INFO] running `"docker" "rm" "-f" "03e79cc85d8fb3eae8933fa795d58f5e6775367f0ed119c12c3146433db7b562"`
[INFO] [stdout] 03e79cc85d8fb3eae8933fa795d58f5e6775367f0ed119c12c3146433db7b562