[INFO] fetching crate ascetic_cli 0.0.2...
[INFO] checking ascetic_cli-0.0.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ascetic_cli 0.0.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ascetic_cli 0.0.2
[INFO] finished tweaking crates.io crate ascetic_cli 0.0.2
[INFO] tweaked toml for crates.io crate ascetic_cli 0.0.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ascetic_cli 0.0.2 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 crates.io crate ascetic_cli 0.0.2 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8b514ec56524d924cf73a159b9777ac0f5bd5b087c166c26bda70abb3f392ede
[INFO] running `Command { std: "docker" "start" "-a" "8b514ec56524d924cf73a159b9777ac0f5bd5b087c166c26bda70abb3f392ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b514ec56524d924cf73a159b9777ac0f5bd5b087c166c26bda70abb3f392ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b514ec56524d924cf73a159b9777ac0f5bd5b087c166c26bda70abb3f392ede", kill_on_drop: false }`
[INFO] [stdout] 8b514ec56524d924cf73a159b9777ac0f5bd5b087c166c26bda70abb3f392ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 11532c77cc067eafec8d9418f53fdd6c7775dc1ebeb9a68f39d5f0fd11f4ead2
[INFO] running `Command { std: "docker" "start" "-a" "11532c77cc067eafec8d9418f53fdd6c7775dc1ebeb9a68f39d5f0fd11f4ead2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
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[INFO] [stderr]    Compiling lalrpop-util v0.18.1
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[INFO] [stderr]     Checking aces v0.0.13
[INFO] [stderr]    Compiling ascesis v0.0.6
[INFO] [stderr]     Checking ascetic_cli v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/solve.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |         if let Ok(mut path) = std::path::PathBuf::from_str(&self.main_path) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/solve.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |         if let Ok(mut path) = std::path::PathBuf::from_str(&self.main_path) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:108:37
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn values_of<S: AsRef<str>>(&self, key: S) -> Option<clap::Values> {
[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] 108 |     pub fn values_of<S: AsRef<str>>(&self, key: S) -> Option<clap::Values<'_>> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/solve.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |         if let Ok(mut path) = std::path::PathBuf::from_str(&self.main_path) {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ascetic_cli` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:108:37
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn values_of<S: AsRef<str>>(&self, key: S) -> Option<clap::Values> {
[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] 108 |     pub fn values_of<S: AsRef<str>>(&self, key: S) -> Option<clap::Values<'_>> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/solve.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |         if let Ok(mut path) = std::path::PathBuf::from_str(&self.main_path) {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ascetic_cli` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "11532c77cc067eafec8d9418f53fdd6c7775dc1ebeb9a68f39d5f0fd11f4ead2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11532c77cc067eafec8d9418f53fdd6c7775dc1ebeb9a68f39d5f0fd11f4ead2", kill_on_drop: false }`
[INFO] [stdout] 11532c77cc067eafec8d9418f53fdd6c7775dc1ebeb9a68f39d5f0fd11f4ead2
