[INFO] fetching crate stk 0.2.1...
[INFO] checking stk-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate stk 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate stk 0.2.1
[INFO] finished tweaking crates.io crate stk 0.2.1
[INFO] tweaked toml for crates.io crate stk 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stk 0.2.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 70 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.7.1 (available: v0.11.8)
[INFO] [stderr]       Adding hashbrown v0.8.2 (available: v0.16.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.48.0)
[INFO] [stderr]       Adding twox-hash v1.6.3 (available: v2.1.2)
[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] a15c1eb1828ce4649cf2efc9675bcec8051736e1590e6c1a50f6087069bf9fcc
[INFO] running `Command { std: "docker" "start" "-a" "a15c1eb1828ce4649cf2efc9675bcec8051736e1590e6c1a50f6087069bf9fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a15c1eb1828ce4649cf2efc9675bcec8051736e1590e6c1a50f6087069bf9fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15c1eb1828ce4649cf2efc9675bcec8051736e1590e6c1a50f6087069bf9fcc", kill_on_drop: false }`
[INFO] [stdout] a15c1eb1828ce4649cf2efc9675bcec8051736e1590e6c1a50f6087069bf9fcc
[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] 2a7b64a1b60032d81e9a602629a6719e9ab1f63fce5f6eb2a0d421bf0f1da5e5
[INFO] running `Command { std: "docker" "start" "-a" "2a7b64a1b60032d81e9a602629a6719e9ab1f63fce5f6eb2a0d421bf0f1da5e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking stk v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hashbrown::HashSet`
[INFO] [stdout]   --> src/lib.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub use hashbrown::HashSet;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/any.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             Box::from_raw(this as *mut () as *mut T);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let _ = Box::from_raw(this as *mut () as *mut T);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 match self.try_into() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 | number_value_trait!(u8, U8);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 match self.try_into() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 | number_value_trait!(u32, U32);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 match self.try_into() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 | number_value_trait!(i8, I8);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 match self.try_into() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 | number_value_trait!(i32, I32);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 match self.try_into() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 | number_value_trait!(i64, I64);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:126:56
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     ValuePtr::Integer(number) => match number.try_into() {
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 | number_value_trait!(i64, I64);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i128, Infallible>
[INFO] [stdout]    --> src/reflection/primitive.rs:126:56
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     ValuePtr::Integer(number) => match number.try_into() {
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 | number_value_trait!(i128, I128);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `number_value_trait` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/unit.rs:360:86
[INFO] [stdout]     |
[INFO] [stdout] 360 |     pub fn iter_imports<'a>(&'a self) -> impl Iterator<Item = (&'a str, &'a Item)> + '_ {
[INFO] [stdout]     |                              --                                 --       --          ^^ the same lifetime is elided here
[INFO] [stdout]     |                              |                                  |        |
[INFO] [stdout]     |                              |                                  |        the same lifetime is named here
[INFO] [stdout]     |                              the lifetime is named here         the same lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 360 -     pub fn iter_imports<'a>(&'a self) -> impl Iterator<Item = (&'a str, &'a Item)> + '_ {
[INFO] [stdout] 360 +     pub fn iter_imports<'a>(&'a self) -> impl Iterator<Item = (&'a str, &'a Item)> + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stk` (lib) due to 7 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2a7b64a1b60032d81e9a602629a6719e9ab1f63fce5f6eb2a0d421bf0f1da5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a7b64a1b60032d81e9a602629a6719e9ab1f63fce5f6eb2a0d421bf0f1da5e5", kill_on_drop: false }`
[INFO] [stdout] 2a7b64a1b60032d81e9a602629a6719e9ab1f63fce5f6eb2a0d421bf0f1da5e5
