Dec 18 14:23:58.031 INFO checking libsecp256k1-rs-0.2.4 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:23:58.031 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:23:58.312 INFO [stdout] 4816758565d34861dc614d3e4cc51ca1a25c071b6e9db428fe94ca2fef7a3dcf
Dec 18 14:23:58.314 INFO running `"docker" "start" "-a" "4816758565d34861dc614d3e4cc51ca1a25c071b6e9db428fe94ca2fef7a3dcf"`
Dec 18 14:23:59.992 INFO [stderr]    Compiling secp256k1-test v0.7.2
Dec 18 14:23:59.992 INFO [stderr]     Checking crypto-mac v0.4.0
Dec 18 14:24:00.476 INFO [stderr]     Checking hmac v0.4.2
Dec 18 14:24:00.916 INFO [stderr]     Checking hmac-drbg v0.1.2
Dec 18 14:24:01.504 INFO [stderr]     Checking libsecp256k1-rs v0.2.4 (/opt/crater/workdir)
Dec 18 14:24:15.719 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 14:24:15.720 INFO [stderr]    --> src/secp256k1/keys.rs:157:9
Dec 18 14:24:15.720 INFO [stderr]     |
Dec 18 14:24:15.720 INFO [stderr] 157 |         write!(f, "{}", self.to_hex(true));
Dec 18 14:24:15.721 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:24:15.721 INFO [stderr]     |
Dec 18 14:24:15.721 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 14:24:15.722 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 14:24:15.722 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)
Dec 18 14:24:15.722 INFO [stderr] 
Dec 18 14:24:19.282 INFO [stderr] error[E0432]: unresolved import `secp256k1`
Dec 18 14:24:19.283 INFO [stderr]  --> benches/public_key.rs:8:5
Dec 18 14:24:19.283 INFO [stderr]   |
Dec 18 14:24:19.283 INFO [stderr] 8 | use secp256k1::PublicKey;
Dec 18 14:24:19.283 INFO [stderr]   |     ^^^^^^^^^ maybe a missing `extern crate secp256k1;`?
Dec 18 14:24:19.283 INFO [stderr] 
Dec 18 14:24:19.336 INFO [stderr] error: aborting due to previous error
Dec 18 14:24:19.336 INFO [stderr] 
Dec 18 14:24:19.336 INFO [stderr] For more information about this error, try `rustc --explain E0432`.
Dec 18 14:24:19.345 INFO [stderr] error: Could not compile `libsecp256k1-rs`.
Dec 18 14:24:19.345 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:24:19.372 INFO [stderr] error[E0432]: unresolved import `secp256k1`
Dec 18 14:24:19.372 INFO [stderr]  --> benches/signature.rs:8:5
Dec 18 14:24:19.372 INFO [stderr]   |
Dec 18 14:24:19.372 INFO [stderr] 8 | use secp256k1::Signature;
Dec 18 14:24:19.372 INFO [stderr]   |     ^^^^^^^^^ maybe a missing `extern crate secp256k1;`?
Dec 18 14:24:19.376 INFO [stderr] 
Dec 18 14:24:19.392 INFO [stderr] error[E0432]: unresolved import `secp256k1`
Dec 18 14:24:19.392 INFO [stderr]   --> benches/sign.rs:11:5
Dec 18 14:24:19.392 INFO [stderr]    |
Dec 18 14:24:19.392 INFO [stderr] 11 | use secp256k1::{sign, Message, SecretKey};
Dec 18 14:24:19.392 INFO [stderr]    |     ^^^^^^^^^ maybe a missing `extern crate secp256k1;`?
Dec 18 14:24:19.392 INFO [stderr] 
Dec 18 14:24:19.444 INFO [stderr] error: aborting due to previous error
Dec 18 14:24:19.444 INFO [stderr] 
Dec 18 14:24:19.444 INFO [stderr] For more information about this error, try `rustc --explain E0432`.
Dec 18 14:24:19.444 INFO [stderr] error: Could not compile `libsecp256k1-rs`.
Dec 18 14:24:19.444 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:24:19.480 INFO [stderr] error: aborting due to previous error
Dec 18 14:24:19.480 INFO [stderr] 
Dec 18 14:24:19.480 INFO [stderr] For more information about this error, try `rustc --explain E0432`.
Dec 18 14:24:19.480 INFO [stderr] error: Could not compile `libsecp256k1-rs`.
Dec 18 14:24:19.480 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:24:19.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 14:24:19.887 INFO [stderr]    --> src/secp256k1/keys.rs:157:9
Dec 18 14:24:19.887 INFO [stderr]     |
Dec 18 14:24:19.887 INFO [stderr] 157 |         write!(f, "{}", self.to_hex(true));
Dec 18 14:24:19.887 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:24:19.887 INFO [stderr]     |
Dec 18 14:24:19.887 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 14:24:19.887 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 14:24:19.887 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)
Dec 18 14:24:19.887 INFO [stderr] 
Dec 18 14:24:21.196 INFO [stderr] error: build failed
Dec 18 14:24:21.669 INFO running `"docker" "inspect" "4816758565d34861dc614d3e4cc51ca1a25c071b6e9db428fe94ca2fef7a3dcf"`
Dec 18 14:24:21.765 INFO running `"docker" "rm" "-f" "4816758565d34861dc614d3e4cc51ca1a25c071b6e9db428fe94ca2fef7a3dcf"`
Dec 18 14:24:21.858 INFO [stdout] 4816758565d34861dc614d3e4cc51ca1a25c071b6e9db428fe94ca2fef7a3dcf