[INFO] fetching crate libsecp256k1-rs 0.2.4...
[INFO] checking libsecp256k1-rs-0.2.4 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate libsecp256k1-rs 0.2.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libsecp256k1-rs 0.2.4 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libsecp256k1-rs 0.2.4
[INFO] finished tweaking crates.io crate libsecp256k1-rs 0.2.4
[INFO] tweaked toml for crates.io crate libsecp256k1-rs 0.2.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 09a14a8b158d0e4cfcd4c90a13a7bcc8284f7535159f533ca1d75471d16872a1
[INFO] running `"docker" "start" "-a" "09a14a8b158d0e4cfcd4c90a13a7bcc8284f7535159f533ca1d75471d16872a1"`
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]    Compiling secp256k1-test v0.7.2
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking hmac-drbg v0.1.2
[INFO] [stderr]     Checking libsecp256k1-rs v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/schnorr/challenge.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(keys: &[&Combinable]) -> Challenge {
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Combinable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/schnorr/challenge.rs:37:25
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(keys: &[&Combinable]) -> Challenge {
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Combinable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[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 warning 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 warning 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/public_key.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use secp256k1::PublicKey;
[INFO] [stderr]   |     ^^^^^^^^^ maybe a missing crate `secp256k1`?
[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 crate `secp256k1`?
[INFO] [stderr] 
[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 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: 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: 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: could not compile `libsecp256k1-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "09a14a8b158d0e4cfcd4c90a13a7bcc8284f7535159f533ca1d75471d16872a1"`
[INFO] running `"docker" "rm" "-f" "09a14a8b158d0e4cfcd4c90a13a7bcc8284f7535159f533ca1d75471d16872a1"`
[INFO] [stdout] 09a14a8b158d0e4cfcd4c90a13a7bcc8284f7535159f533ca1d75471d16872a1