[INFO] cloning repository https://github.com/vanutp/append-only-db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vanutp/append-only-db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanutp%2Fappend-only-db", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanutp%2Fappend-only-db'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a31981c9724003803299cd319163f2f5aaf20398
[INFO] checking vanutp/append-only-db against try#987a165cfab916796a8315782b83ac460a651ce2 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanutp%2Fappend-only-db" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vanutp/append-only-db
[INFO] finished tweaking git repo https://github.com/vanutp/append-only-db
[INFO] tweaked toml for git repo https://github.com/vanutp/append-only-db written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vanutp/append-only-db on toolchain 987a165cfab916796a8315782b83ac460a651ce2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vanutp/append-only-db 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" "+987a165cfab916796a8315782b83ac460a651ce2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d2d6e7983a3e0210c719aa9a624573cc4fa30a046d6d74dce5f8991662989bb
[INFO] running `Command { std: "docker" "start" "-a" "3d2d6e7983a3e0210c719aa9a624573cc4fa30a046d6d74dce5f8991662989bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d2d6e7983a3e0210c719aa9a624573cc4fa30a046d6d74dce5f8991662989bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2d6e7983a3e0210c719aa9a624573cc4fa30a046d6d74dce5f8991662989bb", kill_on_drop: false }`
[INFO] [stdout] 3d2d6e7983a3e0210c719aa9a624573cc4fa30a046d6d74dce5f8991662989bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ca93d526bddb0a1a43152071d34822104390874dbbd3ecc5ec9b73c86e4116f
[INFO] running `Command { std: "docker" "start" "-a" "3ca93d526bddb0a1a43152071d34822104390874dbbd3ecc5ec9b73c86e4116f", kill_on_drop: false }`
[INFO] [stderr]     Checking append-only-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]    --> src/db.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::db::DB`
[INFO] [stdout]    --> src/db.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     use crate::db::DB;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "3ca93d526bddb0a1a43152071d34822104390874dbbd3ecc5ec9b73c86e4116f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca93d526bddb0a1a43152071d34822104390874dbbd3ecc5ec9b73c86e4116f", kill_on_drop: false }`
[INFO] [stdout] 3ca93d526bddb0a1a43152071d34822104390874dbbd3ecc5ec9b73c86e4116f