[INFO] fetching crate libsecp256k1-rs 0.2.4...
[INFO] testing libsecp256k1-rs-0.2.4 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate libsecp256k1-rs 0.2.4 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate libsecp256k1-rs 0.2.4 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 365fdc0e91c37a21b84cf52c93d057b8854702faaf8f0fdf00ad7f9b448a24b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "365fdc0e91c37a21b84cf52c93d057b8854702faaf8f0fdf00ad7f9b448a24b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "365fdc0e91c37a21b84cf52c93d057b8854702faaf8f0fdf00ad7f9b448a24b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365fdc0e91c37a21b84cf52c93d057b8854702faaf8f0fdf00ad7f9b448a24b9", kill_on_drop: false }`
[INFO] [stdout] 365fdc0e91c37a21b84cf52c93d057b8854702faaf8f0fdf00ad7f9b448a24b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec49876461e39268b3e97ae683b9ff01ee36ccfaeb3bff7e440a30ff15327408
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec49876461e39268b3e97ae683b9ff01ee36ccfaeb3bff7e440a30ff15327408", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling generic-array v0.8.4
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling crypto-mac v0.4.0
[INFO] [stderr]    Compiling block-buffer v0.2.0
[INFO] [stderr]    Compiling hmac v0.4.2
[INFO] [stderr]    Compiling sha2 v0.6.0
[INFO] [stderr]    Compiling hmac-drbg v0.1.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling libsecp256k1-rs v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/schnorr/challenge.rs:37:25
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(keys: &[&Combinable]) -> Challenge {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Combinable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/secp256k1/keys.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         write!(f, "{}", self.to_hex(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.05s
[INFO] running `Command { std: "docker" "inspect" "ec49876461e39268b3e97ae683b9ff01ee36ccfaeb3bff7e440a30ff15327408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec49876461e39268b3e97ae683b9ff01ee36ccfaeb3bff7e440a30ff15327408", kill_on_drop: false }`
[INFO] [stdout] ec49876461e39268b3e97ae683b9ff01ee36ccfaeb3bff7e440a30ff15327408
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9019416f5c4169d98b1d3aedeade17023c0414267fb867525d89cca16eaba3f0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9019416f5c4169d98b1d3aedeade17023c0414267fb867525d89cca16eaba3f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling odds v0.2.26
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/schnorr/challenge.rs:37:25
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(keys: &[&Combinable]) -> Challenge {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Combinable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/secp256k1/keys.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         write!(f, "{}", self.to_hex(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling arrayvec v0.3.25
[INFO] [stderr]    Compiling secp256k1-test v0.7.2
[INFO] [stderr]    Compiling libsecp256k1-rs v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/schnorr/challenge.rs:37:25
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(keys: &[&Combinable]) -> Challenge {
[INFO] [stdout]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn Combinable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/secp256k1/keys.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         write!(f, "{}", self.to_hex(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.68s
[INFO] running `Command { std: "docker" "inspect" "9019416f5c4169d98b1d3aedeade17023c0414267fb867525d89cca16eaba3f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9019416f5c4169d98b1d3aedeade17023c0414267fb867525d89cca16eaba3f0", kill_on_drop: false }`
[INFO] [stdout] 9019416f5c4169d98b1d3aedeade17023c0414267fb867525d89cca16eaba3f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cbae2383ae9edd062be1e5db389fc996afc78fb12fc265e2094f9c066c12dc9a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cbae2383ae9edd062be1e5db389fc996afc78fb12fc265e2094f9c066c12dc9a", kill_on_drop: false }`
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unused `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 the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unused `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 the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libsecp256k1_rs-826f5925eadc323f)
[INFO] [stdout] running 24 tests
[INFO] [stdout] test secp256k1::keys::tests::formatting ... ok
[INFO] [stdout] test secp256k1::keys::tests::add_public_keys ... ok
[INFO] [stdout] test secp256k1::keys::tests::add_scalar ... ok
[INFO] [stdout] test secp256k1::keys::tests::secret_to_hex ... ok
[INFO] [stdout] test secp256k1::keys::tests::negate_twice ... ok
[INFO] [stdout] test secp256k1::keys::tests::mul_scalar_is_associative ... ok
[INFO] [stdout] test secp256k1::keys::tests::scalar_multiplication_is_addition ... ok
[INFO] [stdout] test secp256k1::keys::tests::create_secret ... ok
[INFO] [stdout] test secp256k1::keys::tests::mul_scalar ... ok
[INFO] [stdout] test secp256k1::keys::tests::serlialize_deserialize ... ok
[INFO] [stdout] test secp256k1::keys::tests::add_scalar_is_associative ... ok
[INFO] [stdout] test secp256k1::message::message_constructor ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_convert_key2 ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_convert_key1 ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_failing_sign_verify ... ok
[INFO] [stdout] test secp256k1::keys::tests::test_from_hex ... ok
[INFO] [stdout] test secp256k1::keys::tests::valid_keys ... ok
[INFO] [stdout] test secp256k1::keys::tests::scalar_subtraction ... ok
[INFO] [stdout] test secp256k1::keys::tests::inverse_secret ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_verify ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_convert_anykey ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_sign_verify ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_recover ... ok
[INFO] [stdout] test secp256k1::signature::tests::test_shared_secret ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic_signatures.rs (/opt/rustwide/target/debug/deps/basic_signatures-087573c55f4daef2)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test no_nonce ... ok
[INFO] [stdout] test standard_signature ... ok
[INFO] [stdout] test cancellation_attack ... ok
[INFO] [stdout] test schnorr_signature ... ok
[INFO] [stdout] test two_two_multisig ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libsecp256k1-rs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/secp256k1/keys.rs - secp256k1::keys::SecretKey::random (line 216) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbae2383ae9edd062be1e5db389fc996afc78fb12fc265e2094f9c066c12dc9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbae2383ae9edd062be1e5db389fc996afc78fb12fc265e2094f9c066c12dc9a", kill_on_drop: false }`
[INFO] [stdout] cbae2383ae9edd062be1e5db389fc996afc78fb12fc265e2094f9c066c12dc9a