[INFO] fetching crate arkecosystem-crypto 0.1.0...
[INFO] checking arkecosystem-crypto-0.1.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate arkecosystem-crypto 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate arkecosystem-crypto 0.1.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate arkecosystem-crypto 0.1.0
[INFO] finished tweaking crates.io crate arkecosystem-crypto 0.1.0
[INFO] tweaked toml for crates.io crate arkecosystem-crypto 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] feb617823a3a27efdff8b07bde26267bff83ae8463c3b6b5d09d3436a09aba1c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "feb617823a3a27efdff8b07bde26267bff83ae8463c3b6b5d09d3436a09aba1c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking bech32 v0.5.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking bitcoin-bech32 v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling secp256k1 v0.11.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking ripemd160 v0.7.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]     Checking bitcoin v0.14.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking arkecosystem-crypto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/transactions/deserializer.rs:292:21
[INFO] [stderr]     |
[INFO] [stderr] 292 |                 let mut keysgroup = keysgroup.as_mut_slice();
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/transactions/deserializer.rs:292:21
[INFO] [stderr]     |
[INFO] [stderr] 292 |                 let mut keysgroup = keysgroup.as_mut_slice();
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.73s
[INFO] running `"docker" "inspect" "feb617823a3a27efdff8b07bde26267bff83ae8463c3b6b5d09d3436a09aba1c"`
[INFO] running `"docker" "rm" "-f" "feb617823a3a27efdff8b07bde26267bff83ae8463c3b6b5d09d3436a09aba1c"`
[INFO] [stdout] feb617823a3a27efdff8b07bde26267bff83ae8463c3b6b5d09d3436a09aba1c