[INFO] fetching crate zeropool-bn 0.5.7...
[INFO] checking zeropool-bn-0.5.7 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate zeropool-bn 0.5.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate zeropool-bn 0.5.7 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zeropool-bn 0.5.7
[INFO] finished tweaking crates.io crate zeropool-bn 0.5.7
[INFO] tweaked toml for crates.io crate zeropool-bn 0.5.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate zeropool-bn 0.5.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded borsh-derive-internal v0.6.2
[INFO] [stderr]   Downloaded borsh-schema-derive-internal v0.6.2
[INFO] [stderr]   Downloaded borsh v0.6.2
[INFO] [stderr]   Downloaded borsh-derive v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b44fa3660828aa7f66b387f9aee500059d1325b21998c988c5fb19db844a33aa
[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" "b44fa3660828aa7f66b387f9aee500059d1325b21998c988c5fb19db844a33aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b44fa3660828aa7f66b387f9aee500059d1325b21998c988c5fb19db844a33aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44fa3660828aa7f66b387f9aee500059d1325b21998c988c5fb19db844a33aa", kill_on_drop: false }`
[INFO] [stdout] b44fa3660828aa7f66b387f9aee500059d1325b21998c988c5fb19db844a33aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39d1af76783bbf864a696ae659dc5cd68ace58c6c9a69cb7de60b647cb47549e
[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" "39d1af76783bbf864a696ae659dc5cd68ace58c6c9a69cb7de60b647cb47549e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling borsh-derive-internal v0.6.2
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.6.2
[INFO] [stderr]    Compiling borsh-derive v0.6.2
[INFO] [stderr]     Checking borsh v0.6.2
[INFO] [stderr]     Checking zeropool-bn v0.5.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from_jacobian`
[INFO] [stdout]    --> src/groups/mod.rs:347:12
[INFO] [stdout]     |
[INFO] [stdout] 347 |     pub fn from_jacobian(p: G<P>) -> Option<Self> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.98s
[INFO] running `Command { std: "docker" "inspect" "39d1af76783bbf864a696ae659dc5cd68ace58c6c9a69cb7de60b647cb47549e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d1af76783bbf864a696ae659dc5cd68ace58c6c9a69cb7de60b647cb47549e", kill_on_drop: false }`
[INFO] [stdout] 39d1af76783bbf864a696ae659dc5cd68ace58c6c9a69cb7de60b647cb47549e