[INFO] cloning repository https://github.com/amarrerod/dna_search
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amarrerod/dna_search" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarrerod%2Fdna_search", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarrerod%2Fdna_search'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3182d55640283df1c33bcbbf453bfba2e1341fd
[INFO] checking amarrerod/dna_search/e3182d55640283df1c33bcbbf453bfba2e1341fd against master#d49be02cf6d2e2a01264fcdef1e20c826710c0f5 for pr-133570
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarrerod%2Fdna_search" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amarrerod/dna_search on toolchain d49be02cf6d2e2a01264fcdef1e20c826710c0f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amarrerod/dna_search
[INFO] finished tweaking git repo https://github.com/amarrerod/dna_search
[INFO] tweaked toml for git repo https://github.com/amarrerod/dna_search written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amarrerod/dna_search 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" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18afa5dd436fc7fb03fa09c21dbbc12137324e953f162ada31af385ff1740b38
[INFO] running `Command { std: "docker" "start" "-a" "18afa5dd436fc7fb03fa09c21dbbc12137324e953f162ada31af385ff1740b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18afa5dd436fc7fb03fa09c21dbbc12137324e953f162ada31af385ff1740b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18afa5dd436fc7fb03fa09c21dbbc12137324e953f162ada31af385ff1740b38", kill_on_drop: false }`
[INFO] [stdout] 18afa5dd436fc7fb03fa09c21dbbc12137324e953f162ada31af385ff1740b38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f9dfa55596ff6e0cd4fa4809445bc08bcd37fc18cc873e5210e297febb80c38
[INFO] running `Command { std: "docker" "start" "-a" "3f9dfa55596ff6e0cd4fa4809445bc08bcd37fc18cc873e5210e297febb80c38", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking classic_cs_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `OccupiedEntry` and `VacantEntry`
[INFO] [stdout]  --> src/maze_solving/search.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::btree_map::{VacantEntry, OccupiedEntry};
[INFO] [stdout]   |                                   ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `OccupiedEntry` and `VacantEntry`
[INFO] [stdout]  --> src/maze_solving/search.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::btree_map::{VacantEntry, OccupiedEntry};
[INFO] [stdout]   |                                   ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "3f9dfa55596ff6e0cd4fa4809445bc08bcd37fc18cc873e5210e297febb80c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9dfa55596ff6e0cd4fa4809445bc08bcd37fc18cc873e5210e297febb80c38", kill_on_drop: false }`
[INFO] [stdout] 3f9dfa55596ff6e0cd4fa4809445bc08bcd37fc18cc873e5210e297febb80c38