[INFO] updating cached repository https://github.com/brenzi/rust-ipfs-verifier
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78421eb55161024b14615b37d1d87ce095632c3a
[INFO] checking brenzi/rust-ipfs-verifier against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrenzi%2Frust-ipfs-verifier" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brenzi/rust-ipfs-verifier on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brenzi/rust-ipfs-verifier
[INFO] finished tweaking git repo https://github.com/brenzi/rust-ipfs-verifier
[INFO] tweaked toml for git repo https://github.com/brenzi/rust-ipfs-verifier written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/brenzi/rust-ipfs-verifier already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 42c5ea9715f2f19e3671eddc7592ee70910ed02773cd8b0427ab09a1e2ecd772
[INFO] running `"docker" "start" "-a" "42c5ea9715f2f19e3671eddc7592ee70910ed02773cd8b0427ab09a1e2ecd772"`
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[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking multihash v0.8.0
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[INFO] [stderr]     Checking ipfs-verifier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Sha256`
[INFO] [stderr]   --> src/main.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sha2::{Sha256, Digest};
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromBase58`, `ToBase58`
[INFO] [stderr]   --> src/main.rs:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 | use rust_base58::{ToBase58, FromBase58};
[INFO] [stderr]    |                   ^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Hash`, `Multihash`, `decode`, `encode`, `to_hex`
[INFO] [stderr]   --> src/main.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 | use multihash::{encode, decode, Hash, Multihash, to_hex};
[INFO] [stderr]    |                 ^^^^^^  ^^^^^^  ^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]   --> src/main.rs:30:15
[INFO] [stderr]    |
[INFO] [stderr] 30 | use std::io::{self, Write, Cursor};
[INFO] [stderr]    |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Sha256`
[INFO] [stderr]   --> src/main.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sha2::{Sha256, Digest};
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromBase58`, `ToBase58`
[INFO] [stderr]   --> src/main.rs:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 | use rust_base58::{ToBase58, FromBase58};
[INFO] [stderr]    |                   ^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Hash`, `Multihash`, `decode`, `encode`, `to_hex`
[INFO] [stderr]   --> src/main.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 | use multihash::{encode, decode, Hash, Multihash, to_hex};
[INFO] [stderr]    |                 ^^^^^^  ^^^^^^  ^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]   --> src/main.rs:30:15
[INFO] [stderr]    |
[INFO] [stderr] 30 | use std::io::{self, Write, Cursor};
[INFO] [stderr]    |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Digest`
[INFO] [stderr]   --> src/main.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sha2::{Sha256, Digest};
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Digest`
[INFO] [stderr]   --> src/main.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sha2::{Sha256, Digest};
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `"docker" "inspect" "42c5ea9715f2f19e3671eddc7592ee70910ed02773cd8b0427ab09a1e2ecd772"`
[INFO] running `"docker" "rm" "-f" "42c5ea9715f2f19e3671eddc7592ee70910ed02773cd8b0427ab09a1e2ecd772"`
[INFO] [stdout] 42c5ea9715f2f19e3671eddc7592ee70910ed02773cd8b0427ab09a1e2ecd772