[INFO] cloning repository https://github.com/crockeo/venvcache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crockeo/venvcache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fvenvcache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fvenvcache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e57fa5ef6dc0fc91d48205f83888ae8d18f12903
[INFO] checking crockeo/venvcache against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fvenvcache" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/crockeo/venvcache
[INFO] finished tweaking git repo https://github.com/crockeo/venvcache
[INFO] tweaked toml for git repo https://github.com/crockeo/venvcache written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/crockeo/venvcache on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/crockeo/venvcache 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95ee6e5986ff8adbdcd2df229a6b42d8f74b91cd012b0f1cf34cfac967761817
[INFO] running `Command { std: "docker" "start" "-a" "95ee6e5986ff8adbdcd2df229a6b42d8f74b91cd012b0f1cf34cfac967761817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95ee6e5986ff8adbdcd2df229a6b42d8f74b91cd012b0f1cf34cfac967761817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ee6e5986ff8adbdcd2df229a6b42d8f74b91cd012b0f1cf34cfac967761817", kill_on_drop: false }`
[INFO] [stdout] 95ee6e5986ff8adbdcd2df229a6b42d8f74b91cd012b0f1cf34cfac967761817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73950ca480e332a8ea526dd071299c6ea5075aba51f9c69aee9dc249a3fa8ea0
[INFO] running `Command { std: "docker" "start" "-a" "73950ca480e332a8ea526dd071299c6ea5075aba51f9c69aee9dc249a3fa8ea0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling cc v1.0.91
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking fallible-iterator v0.3.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking hashlink v0.9.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.28.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking sha256 v1.5.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking rusqlite v0.31.0
[INFO] [stderr]     Checking venvcache v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// The Python executable to use when creating a virtual environment.
[INFO] [stdout] 14 | |     /// Virtual environments are considered different if created by different Pythons.
[INFO] [stdout] 15 | |     #[structopt(long, env = "VENVCACHE_PYTHON")]
[INFO] [stdout] 16 | |     python: PathBuf,
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// The root of the directory tree at which we will store virtual environments.
[INFO] [stdout] 19 | |     #[structopt(long, env = "VENVCACHE_ROOT")]
[INFO] [stdout] 20 | |     root: PathBuf,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// The location of the journal file we use to communicate venv use between processes.
[INFO] [stdout] 23 | |     #[structopt(long, env = "VENVCACHE_JOURNAL")]
[INFO] [stdout] 24 | |     journal: PathBuf,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// When provided, use the contents of this argument as the venv's requirements.
[INFO] [stdout] 30 | |     #[structopt(long, env = "VENVCACHE_REQUIREMENTS")]
[INFO] [stdout] 31 | |     requirements: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// When provided, read requirements in from the provided file instead of from stdin.
[INFO] [stdout] 34 | |     #[structopt(long)]
[INFO] [stdout] 35 | |     requirements_path: Option<PathBuf>,
[INFO] [stdout]    | |______________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     /// The arguments that will be passed to the Python executable inside of the virtual environment.
[INFO] [stdout] 38 | |     #[structopt()]
[INFO] [stdout] 39 | |     args: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file_lock.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn read(&mut self) -> anyhow::Result<ReadLock> {
[INFO] [stdout]    |                 ^^^^^^^^^                    ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn read(&mut self) -> anyhow::Result<ReadLock<'_>> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file_lock.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn write(&mut self) -> anyhow::Result<WriteLock> {
[INFO] [stdout]    |                  ^^^^^^^^^                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn write(&mut self) -> anyhow::Result<WriteLock<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// The Python executable to use when creating a virtual environment.
[INFO] [stdout] 14 | |     /// Virtual environments are considered different if created by different Pythons.
[INFO] [stdout] 15 | |     #[structopt(long, env = "VENVCACHE_PYTHON")]
[INFO] [stdout] 16 | |     python: PathBuf,
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// The root of the directory tree at which we will store virtual environments.
[INFO] [stdout] 19 | |     #[structopt(long, env = "VENVCACHE_ROOT")]
[INFO] [stdout] 20 | |     root: PathBuf,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// The location of the journal file we use to communicate venv use between processes.
[INFO] [stdout] 23 | |     #[structopt(long, env = "VENVCACHE_JOURNAL")]
[INFO] [stdout] 24 | |     journal: PathBuf,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// When provided, use the contents of this argument as the venv's requirements.
[INFO] [stdout] 30 | |     #[structopt(long, env = "VENVCACHE_REQUIREMENTS")]
[INFO] [stdout] 31 | |     requirements: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// When provided, read requirements in from the provided file instead of from stdin.
[INFO] [stdout] 34 | |     #[structopt(long)]
[INFO] [stdout] 35 | |     requirements_path: Option<PathBuf>,
[INFO] [stdout]    | |______________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     /// The arguments that will be passed to the Python executable inside of the virtual environment.
[INFO] [stdout] 38 | |     #[structopt()]
[INFO] [stdout] 39 | |     args: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file_lock.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn read(&mut self) -> anyhow::Result<ReadLock> {
[INFO] [stdout]    |                 ^^^^^^^^^                    ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn read(&mut self) -> anyhow::Result<ReadLock<'_>> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/file_lock.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn write(&mut self) -> anyhow::Result<WriteLock> {
[INFO] [stdout]    |                  ^^^^^^^^^                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn write(&mut self) -> anyhow::Result<WriteLock<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `venvcache` (bin "venvcache") due to 6 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `venvcache` (bin "venvcache" test) due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "73950ca480e332a8ea526dd071299c6ea5075aba51f9c69aee9dc249a3fa8ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73950ca480e332a8ea526dd071299c6ea5075aba51f9c69aee9dc249a3fa8ea0", kill_on_drop: false }`
[INFO] [stdout] 73950ca480e332a8ea526dd071299c6ea5075aba51f9c69aee9dc249a3fa8ea0
