[INFO] cloning repository https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebkalderon/merkle-tree-nix-store-thing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfd6db223b709535ebf131fc9db3c14c11c2331b
[INFO] testing ebkalderon/merkle-tree-nix-store-thing against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] finished tweaking git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] tweaked toml for git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b72d05bb3258ff4df4c1e94ab0f2e030f9c85b5302fbf232277c80fd0e362e71
[INFO] running `Command { std: "docker" "start" "-a" "b72d05bb3258ff4df4c1e94ab0f2e030f9c85b5302fbf232277c80fd0e362e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b72d05bb3258ff4df4c1e94ab0f2e030f9c85b5302fbf232277c80fd0e362e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b72d05bb3258ff4df4c1e94ab0f2e030f9c85b5302fbf232277c80fd0e362e71", kill_on_drop: false }`
[INFO] [stdout] b72d05bb3258ff4df4c1e94ab0f2e030f9c85b5302fbf232277c80fd0e362e71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bea4c669ae9513044594db5fe5a9a6296926ea9b8a412e09f4e98915a26482b
[INFO] running `Command { std: "docker" "start" "-a" "1bea4c669ae9513044594db5fe5a9a6296926ea9b8a412e09f4e98915a26482b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.15
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[INFO] [stderr]    Compiling tokio v1.0.0
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[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling bitvec v0.19.4
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[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling semver-parser v0.10.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling goblin v0.3.0
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.7
[INFO] [stderr]    Compiling futures-executor v0.3.7
[INFO] [stderr]    Compiling tokio-stream v0.1.0
[INFO] [stderr]    Compiling futures v0.3.7
[INFO] [stderr]    Compiling tokio-util v0.6.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling smol_str v0.1.17
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `PATCHELF_BIN`
[INFO] [stdout]   --> src/local/install.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const PATCHELF_BIN: &str = "patchelf";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `install_path`
[INFO] [stdout]   --> src/local/install.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub(crate) fn install_path(&mut self, out_dir: &Path, spec: &Spec) -> anyhow::Result<ObjectId> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_tree`
[INFO] [stdout]   --> src/local/install.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn build_tree<B>(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_content_addressed`
[INFO] [stdout]    --> src/local/install.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn make_content_addressed(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_elf_rpaths_with_prefix`
[INFO] [stdout]    --> src/local/install.rs:221:4
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn patch_elf_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_mach_rpaths_with_prefix`
[INFO] [stdout]    --> src/local/install.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn patch_mach_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/object/reference.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn new(inner: W, pattern: &Path, replace: &Path) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_inner`
[INFO] [stdout]   --> src/object/reference.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn into_inner(mut self) -> io::Result<(W, Offsets)> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "1bea4c669ae9513044594db5fe5a9a6296926ea9b8a412e09f4e98915a26482b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bea4c669ae9513044594db5fe5a9a6296926ea9b8a412e09f4e98915a26482b", kill_on_drop: false }`
[INFO] [stdout] 1bea4c669ae9513044594db5fe5a9a6296926ea9b8a412e09f4e98915a26482b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4758cfb59bae3112ab5823948034f01f8318e3cf39cab9f48f437f410f97ed71
[INFO] running `Command { std: "docker" "start" "-a" "4758cfb59bae3112ab5823948034f01f8318e3cf39cab9f48f437f410f97ed71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `PATCHELF_BIN`
[INFO] [stdout]   --> src/local/install.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const PATCHELF_BIN: &str = "patchelf";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `install_path`
[INFO] [stdout]   --> src/local/install.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub(crate) fn install_path(&mut self, out_dir: &Path, spec: &Spec) -> anyhow::Result<ObjectId> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_tree`
[INFO] [stdout]   --> src/local/install.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn build_tree<B>(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_content_addressed`
[INFO] [stdout]    --> src/local/install.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn make_content_addressed(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_elf_rpaths_with_prefix`
[INFO] [stdout]    --> src/local/install.rs:221:4
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn patch_elf_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_mach_rpaths_with_prefix`
[INFO] [stdout]    --> src/local/install.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn patch_mach_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/object/reference.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn new(inner: W, pattern: &Path, replace: &Path) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_inner`
[INFO] [stdout]   --> src/object/reference.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn into_inner(mut self) -> io::Result<(W, Offsets)> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PATCHELF_BIN`
[INFO] [stdout]   --> src/local/install.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const PATCHELF_BIN: &str = "patchelf";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `install_path`
[INFO] [stdout]   --> src/local/install.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub(crate) fn install_path(&mut self, out_dir: &Path, spec: &Spec) -> anyhow::Result<ObjectId> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_tree`
[INFO] [stdout]   --> src/local/install.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn build_tree<B>(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_content_addressed`
[INFO] [stdout]    --> src/local/install.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn make_content_addressed(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_elf_rpaths_with_prefix`
[INFO] [stdout]    --> src/local/install.rs:221:4
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn patch_elf_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_mach_rpaths_with_prefix`
[INFO] [stdout]    --> src/local/install.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn patch_mach_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.50s
[INFO] running `Command { std: "docker" "inspect" "4758cfb59bae3112ab5823948034f01f8318e3cf39cab9f48f437f410f97ed71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4758cfb59bae3112ab5823948034f01f8318e3cf39cab9f48f437f410f97ed71", kill_on_drop: false }`
[INFO] [stdout] 4758cfb59bae3112ab5823948034f01f8318e3cf39cab9f48f437f410f97ed71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c2cd8b82a1d6ba4755447d5a80efd932114874bfada26601296fb7331468ece
[INFO] running `Command { std: "docker" "start" "-a" "8c2cd8b82a1d6ba4755447d5a80efd932114874bfada26601296fb7331468ece", kill_on_drop: false }`
[INFO] [stderr] warning: constant is never used: `PATCHELF_BIN`
[INFO] [stderr]   --> src/local/install.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const PATCHELF_BIN: &str = "patchelf";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `install_path`
[INFO] [stderr]   --> src/local/install.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub(crate) fn install_path(&mut self, out_dir: &Path, spec: &Spec) -> anyhow::Result<ObjectId> {
[INFO] [stderr]    |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_tree`
[INFO] [stderr]   --> src/local/install.rs:92:4
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn build_tree<B>(
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_content_addressed`
[INFO] [stderr]    --> src/local/install.rs:169:4
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn make_content_addressed(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `patch_elf_rpaths_with_prefix`
[INFO] [stderr]    --> src/local/install.rs:221:4
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn patch_elf_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `patch_mach_rpaths_with_prefix`
[INFO] [stderr]    --> src/local/install.rs:278:4
[INFO] [stderr]     |
[INFO] [stderr] 278 | fn patch_mach_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/object/reference.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn new(inner: W, pattern: &Path, replace: &Path) -> io::Result<Self> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into_inner`
[INFO] [stderr]   --> src/object/reference.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn into_inner(mut self) -> io::Result<(W, Offsets)> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `foo` (lib) generated 8 warnings
[INFO] [stderr] warning: `foo` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/foo-f43ef31c9e832c6a)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test object::id::tests::str_len_constant_is_correct ... ok
[INFO] [stdout] test object::reference::tests::detects_references_long_chunks ... ok
[INFO] [stdout] test object::reference::tests::detects_references_short_chunks ... ok
[INFO] [stdout] test object::reference::tests::rewrites_paths ... ok
[INFO] [stdout] test object::pack::tests::round_trip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/foo-58ea85f58a0de152)
[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] [stderr]    Doc-tests foo
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/object/platform.rs - platform (line 31) ... ok
[INFO] [stdout] test src/object/name.rs - object::name::InstallName::id (line 146) ... ok
[INFO] [stdout] test src/object/name.rs - object::name::InstallName::name (line 124) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.95s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8c2cd8b82a1d6ba4755447d5a80efd932114874bfada26601296fb7331468ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c2cd8b82a1d6ba4755447d5a80efd932114874bfada26601296fb7331468ece", kill_on_drop: false }`
[INFO] [stdout] 8c2cd8b82a1d6ba4755447d5a80efd932114874bfada26601296fb7331468ece