[INFO] fetching crate dotenv-flow 0.16.2...
[INFO] checking dotenv-flow-0.16.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate dotenv-flow 0.16.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate dotenv-flow 0.16.2 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dotenv-flow 0.16.2
[INFO] finished tweaking crates.io crate dotenv-flow 0.16.2
[INFO] tweaked toml for crates.io crate dotenv-flow 0.16.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate dotenv-flow 0.16.2 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 748369abbd087ed1705f1a07b083708f250c70b36f1afea317206299a32760ab
[INFO] running `Command { std: "docker" "start" "-a" "748369abbd087ed1705f1a07b083708f250c70b36f1afea317206299a32760ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "748369abbd087ed1705f1a07b083708f250c70b36f1afea317206299a32760ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748369abbd087ed1705f1a07b083708f250c70b36f1afea317206299a32760ab", kill_on_drop: false }`
[INFO] [stdout] 748369abbd087ed1705f1a07b083708f250c70b36f1afea317206299a32760ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac22a526ed109b02dc5a986c615169ce3c27022c6549e154d0eea3655445dfe3
[INFO] running `Command { std: "docker" "start" "-a" "ac22a526ed109b02dc5a986c615169ce3c27022c6549e154d0eea3655445dfe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling rustix v0.37.6
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking dotenv-flow v0.16.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/find.rs:21:36
[INFO] [stdout]    |
[INFO] [stdout] 21 |             filename: path.as_ref().clone(),
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 21 -             filename: path.as_ref().clone(),
[INFO] [stdout] 21 +             filename: path.as_ref(),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tempfile v3.5.0
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[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] [stdout] warning: function `tempdir_with_dotenv` is never used
[INFO] [stdout]   --> tests/common/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn tempdir_with_dotenv(dotenv_text: &str) -> io::Result<TempDir> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_test_dotenv` is never used
[INFO] [stdout]   --> tests/common/mod.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn make_test_dotenv() -> io::Result<TempDir> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_test_dotenv` is never used
[INFO] [stdout]   --> tests/common/mod.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn make_test_dotenv() -> io::Result<TempDir> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optional_write_flush` is never used
[INFO] [stdout]   --> tests/common/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn optional_write_flush(dir: &TempDir, path: &str, content: Option<&str>) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tempdir_with_dotenv_flow` is never used
[INFO] [stdout]   --> tests/common/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn tempdir_with_dotenv_flow(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/find.rs:21:36
[INFO] [stdout]    |
[INFO] [stdout] 21 |             filename: path.as_ref().clone(),
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 21 -             filename: path.as_ref().clone(),
[INFO] [stdout] 21 +             filename: path.as_ref(),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "ac22a526ed109b02dc5a986c615169ce3c27022c6549e154d0eea3655445dfe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac22a526ed109b02dc5a986c615169ce3c27022c6549e154d0eea3655445dfe3", kill_on_drop: false }`
[INFO] [stdout] ac22a526ed109b02dc5a986c615169ce3c27022c6549e154d0eea3655445dfe3