[INFO] fetching crate zeropool-bn 0.5.11...
[INFO] checking zeropool-bn-0.5.11 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate zeropool-bn 0.5.11 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate zeropool-bn 0.5.11
[INFO] finished tweaking crates.io crate zeropool-bn 0.5.11
[INFO] tweaked toml for crates.io crate zeropool-bn 0.5.11 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zeropool-bn 0.5.11 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zeropool-bn 0.5.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc32083dc5fa2d3f490d33587a47307e321cdfd54c5f99e90b69a48b864426aa
[INFO] running `Command { std: "docker" "start" "-a" "cc32083dc5fa2d3f490d33587a47307e321cdfd54c5f99e90b69a48b864426aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc32083dc5fa2d3f490d33587a47307e321cdfd54c5f99e90b69a48b864426aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc32083dc5fa2d3f490d33587a47307e321cdfd54c5f99e90b69a48b864426aa", kill_on_drop: false }`
[INFO] [stdout] cc32083dc5fa2d3f490d33587a47307e321cdfd54c5f99e90b69a48b864426aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8abfeea5a1652f01e16f6f54465e76235dcecf9639bdbad467ff2b681cc8a8c0
[INFO] running `Command { std: "docker" "start" "-a" "8abfeea5a1652f01e16f6f54465e76235dcecf9639bdbad467ff2b681cc8a8c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling syn v1.0.83
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling seq-macro v0.1.5
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling borsh-derive-internal v0.9.1
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.9.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling borsh-derive v0.9.1
[INFO] [stderr]     Checking borsh v0.9.1
[INFO] [stderr]     Checking zeropool-bn v0.5.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from_jacobian` is never used
[INFO] [stdout]    --> src/groups/mod.rs:347:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl<P: GroupParams> AffineG<P> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 347 |     pub fn from_jacobian(p: G<P>) -> Option<Self> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arith.rs:377:17
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn bits(&self) -> BitIterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn bits(&self) -> BitIterator<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> benches/api.rs:18:17
[INFO] [stdout]     |
[INFO] [stdout]  18 |               let $rng = &mut rand::thread_rng();
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 | / benchmark!(perform_pippenger_empty,
[INFO] [stdout] 129 | |     input(rng) = vec![];
[INFO] [stdout] 130 | |
[INFO] [stdout] 131 | |     G1::multiexp(input)
[INFO] [stdout] 132 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] help: `rng` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> benches/api.rs:18:17
[INFO] [stdout]     |
[INFO] [stdout]  18 |               let $rng = &mut rand::thread_rng();
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 | / benchmark!(perform_pippenger_empty,
[INFO] [stdout] 129 | |     input(rng) = vec![];
[INFO] [stdout] 130 | |
[INFO] [stdout] 131 | |     G1::multiexp(input)
[INFO] [stdout] 132 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `benchmark` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arith.rs:377:17
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn bits(&self) -> BitIterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn bits(&self) -> BitIterator<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.81s
[INFO] running `Command { std: "docker" "inspect" "8abfeea5a1652f01e16f6f54465e76235dcecf9639bdbad467ff2b681cc8a8c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8abfeea5a1652f01e16f6f54465e76235dcecf9639bdbad467ff2b681cc8a8c0", kill_on_drop: false }`
[INFO] [stdout] 8abfeea5a1652f01e16f6f54465e76235dcecf9639bdbad467ff2b681cc8a8c0
