[INFO] cloning repository https://github.com/Malax/rust-cnb-starter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Malax/rust-cnb-starter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMalax%2Frust-cnb-starter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMalax%2Frust-cnb-starter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b04adbcd3f250f8517b8b1f2f243c13e375bde3
[INFO] testing Malax/rust-cnb-starter against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMalax%2Frust-cnb-starter" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Malax/rust-cnb-starter on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Malax/rust-cnb-starter
[INFO] finished tweaking git repo https://github.com/Malax/rust-cnb-starter
[INFO] tweaked toml for git repo https://github.com/Malax/rust-cnb-starter written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/Malax/rust-cnb-starter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libcnb v0.2.0-prerelease1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5d2f78a21de9e8535fa40891fbc10d1c90f69bceb1e7ef1c099d388ea57d995
[INFO] running `Command { std: "docker" "start" "-a" "f5d2f78a21de9e8535fa40891fbc10d1c90f69bceb1e7ef1c099d388ea57d995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5d2f78a21de9e8535fa40891fbc10d1c90f69bceb1e7ef1c099d388ea57d995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d2f78a21de9e8535fa40891fbc10d1c90f69bceb1e7ef1c099d388ea57d995", kill_on_drop: false }`
[INFO] [stdout] f5d2f78a21de9e8535fa40891fbc10d1c90f69bceb1e7ef1c099d388ea57d995
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae9b2e8ef77fc7a2b3ccaa086a7eec1676d1233981bb1607ed2dd6c4514d4eb4
[INFO] running `Command { std: "docker" "start" "-a" "ae9b2e8ef77fc7a2b3ccaa086a7eec1676d1233981bb1607ed2dd6c4514d4eb4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling libcnb v0.2.0-prerelease1
[INFO] [stderr]    Compiling rust-cnb-starter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PathBuf`, `Path`
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SomeError`
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     SomeError,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.57s
[INFO] running `Command { std: "docker" "inspect" "ae9b2e8ef77fc7a2b3ccaa086a7eec1676d1233981bb1607ed2dd6c4514d4eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9b2e8ef77fc7a2b3ccaa086a7eec1676d1233981bb1607ed2dd6c4514d4eb4", kill_on_drop: false }`
[INFO] [stdout] ae9b2e8ef77fc7a2b3ccaa086a7eec1676d1233981bb1607ed2dd6c4514d4eb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 242516b28b5444b7a965e3c6b85ffd51c29568d4a621edfcad7d50d9a932cbf7
[INFO] running `Command { std: "docker" "start" "-a" "242516b28b5444b7a965e3c6b85ffd51c29568d4a621edfcad7d50d9a932cbf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-cnb-starter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PathBuf`, `Path`
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SomeError`
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     SomeError,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "242516b28b5444b7a965e3c6b85ffd51c29568d4a621edfcad7d50d9a932cbf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "242516b28b5444b7a965e3c6b85ffd51c29568d4a621edfcad7d50d9a932cbf7", kill_on_drop: false }`
[INFO] [stdout] 242516b28b5444b7a965e3c6b85ffd51c29568d4a621edfcad7d50d9a932cbf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6263d00a749438cdf7e25f10fb40560f844bf0ed7dec48baa431ab0c976bd56b
[INFO] running `Command { std: "docker" "start" "-a" "6263d00a749438cdf7e25f10fb40560f844bf0ed7dec48baa431ab0c976bd56b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `PathBuf`, `Path`
[INFO] [stderr]  --> src/main.rs:7:17
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SomeError`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     SomeError,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-cnb-starter` (bin "rust-cnb-starter" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.31s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_cnb_starter-f75f263b2936ab9e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6263d00a749438cdf7e25f10fb40560f844bf0ed7dec48baa431ab0c976bd56b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6263d00a749438cdf7e25f10fb40560f844bf0ed7dec48baa431ab0c976bd56b", kill_on_drop: false }`
[INFO] [stdout] 6263d00a749438cdf7e25f10fb40560f844bf0ed7dec48baa431ab0c976bd56b