[INFO] cloning repository https://github.com/bestrauc/crypto_challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bestrauc/crypto_challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbestrauc%2Fcrypto_challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbestrauc%2Fcrypto_challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a92388926885a59b3e9001bc133d5e59b9bbbab8
[INFO] checking bestrauc/crypto_challenge against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbestrauc%2Fcrypto_challenge" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bestrauc/crypto_challenge on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bestrauc/crypto_challenge
[INFO] finished tweaking git repo https://github.com/bestrauc/crypto_challenge
[INFO] tweaked toml for git repo https://github.com/bestrauc/crypto_challenge written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/bestrauc/crypto_challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f4c751c37beca1058090055d0501e4ab32485f9e71ff2db04f5bf8740b621e2
[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" "9f4c751c37beca1058090055d0501e4ab32485f9e71ff2db04f5bf8740b621e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f4c751c37beca1058090055d0501e4ab32485f9e71ff2db04f5bf8740b621e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f4c751c37beca1058090055d0501e4ab32485f9e71ff2db04f5bf8740b621e2", kill_on_drop: false }`
[INFO] [stdout] 9f4c751c37beca1058090055d0501e4ab32485f9e71ff2db04f5bf8740b621e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60027b61ef82b8bf6e1c3acd2c5d33738043d1c4d95aa2576381464e9a8a9ee6
[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" "60027b61ef82b8bf6e1c3acd2c5d33738043d1c4d95aa2576381464e9a8a9ee6", kill_on_drop: false }`
[INFO] [stderr]     Checking crypto_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::encodings::hex`
[INFO] [stdout]  --> src/byte_ops.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::encodings::hex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::encodings::hex`
[INFO] [stdout]  --> src/byte_ops.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::encodings::hex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 0.24s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60027b61ef82b8bf6e1c3acd2c5d33738043d1c4d95aa2576381464e9a8a9ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60027b61ef82b8bf6e1c3acd2c5d33738043d1c4d95aa2576381464e9a8a9ee6", kill_on_drop: false }`
[INFO] [stdout] 60027b61ef82b8bf6e1c3acd2c5d33738043d1c4d95aa2576381464e9a8a9ee6