[INFO] fetching crate eppo_core 9.3.0...
[INFO] checking eppo_core-9.3.0 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate eppo_core 9.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate eppo_core 9.3.0
[INFO] finished tweaking crates.io crate eppo_core 9.3.0
[INFO] tweaked toml for crates.io crate eppo_core 9.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate eppo_core 9.3.0 on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate eppo_core 9.3.0 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "974d3a0b492c77ec4077169cc5ca986505740fba47eb08332042fa15aec92a77", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/eval/eval_precomputed.rs:61:31
[INFO] [stdout]    |
[INFO] [stdout] 61 |             .map(|assignment| ((flag_key.clone(), PrecomputedAssignment::from(assignment))))
[INFO] [stdout]    |                               ^                                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -             .map(|assignment| ((flag_key.clone(), PrecomputedAssignment::from(assignment))))
[INFO] [stdout] 61 +             .map(|assignment| (flag_key.clone(), PrecomputedAssignment::from(assignment)) )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/eval/eval_precomputed.rs:61:31
[INFO] [stdout]    |
[INFO] [stdout] 61 |             .map(|assignment| ((flag_key.clone(), PrecomputedAssignment::from(assignment))))
[INFO] [stdout]    |                               ^                                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -             .map(|assignment| ((flag_key.clone(), PrecomputedAssignment::from(assignment))))
[INFO] [stdout] 61 +             .map(|assignment| (flag_key.clone(), PrecomputedAssignment::from(assignment)) )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]  --> src/configuration_poller.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/configuration_poller.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |     Duration::saturating_sub(interval, thread_rng().gen_range(Duration::ZERO..=jitter))
[INFO] [stdout]     |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/precomputed.rs:130:31
[INFO] [stdout]     |
[INFO] [stdout] 130 |             let bytes = rand::thread_rng().gen::<[u8; 16]>();
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]  --> src/configuration_poller.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/configuration_poller.rs:174:40
[INFO] [stdout]     |
[INFO] [stdout] 174 |     Duration::saturating_sub(interval, thread_rng().gen_range(Duration::ZERO..=jitter))
[INFO] [stdout]     |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/precomputed.rs:130:31
[INFO] [stdout]     |
[INFO] [stdout] 130 |             let bytes = rand::thread_rng().gen::<[u8; 16]>();
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> src/configuration_poller.rs:174:53
[INFO] [stdout]     |
[INFO] [stdout] 174 |     Duration::saturating_sub(interval, thread_rng().gen_range(Duration::ZERO..=jitter))
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> src/configuration_poller.rs:174:53
[INFO] [stdout]     |
[INFO] [stdout] 174 |     Duration::saturating_sub(interval, thread_rng().gen_range(Duration::ZERO..=jitter))
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen`: Renamed to `random` to avoid conflict with the new `gen` keyword in Rust 2024.
[INFO] [stdout]    --> src/precomputed.rs:130:44
[INFO] [stdout]     |
[INFO] [stdout] 130 |             let bytes = rand::thread_rng().gen::<[u8; 16]>();
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen`: Renamed to `random` to avoid conflict with the new `gen` keyword in Rust 2024.
[INFO] [stdout]    --> src/precomputed.rs:130:44
[INFO] [stdout]     |
[INFO] [stdout] 130 |             let bytes = rand::thread_rng().gen::<[u8; 16]>();
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `spawn_tracked` is never used
[INFO] [stdout]   --> src/background/runtime.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<AR: AsyncRuntime> BackgroundRuntime<AR> {
[INFO] [stdout]    | -------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub(crate) fn spawn_tracked<F>(&self, future: F)
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SdkKey` is never constructed
[INFO] [stdout]  --> src/sdk_key.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct SdkKey(Str);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `as_str`, and `event_ingestion_url` are never used
[INFO] [stdout]   --> src/sdk_key.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl SdkKey {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 16 |     #[inline]
[INFO] [stdout] 17 |     pub fn new(key: Str) -> SdkKey {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub(crate) fn as_str(&self) -> &str {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub(crate) fn event_ingestion_url(&self) -> Option<Url> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/attributes.rs:102:36
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn coerce_to_string(&self) -> Option<Cow<str>> {
[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] 102 |     pub(crate) fn coerce_to_string(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/attributes.rs:163:26
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub(crate) fn to_str(&self) -> Cow<str> {
[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] 163 |     pub(crate) fn to_str(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/configuration.rs:69:36
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn get_flags_configuration(&self) -> Option<Cow<[u8]>> {
[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] 69 |     pub fn get_flags_configuration(&self) -> Option<Cow<'_, [u8]>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/configuration.rs:77:38
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_bandits_configuration(&self) -> Option<Cow<[u8]>> {
[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] 77 |     pub fn get_bandits_configuration(&self) -> Option<Cow<'_, [u8]>> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn to_value(&self) -> log::kv::Value {
[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] 107 |     fn to_value(&self) -> log::kv::Value<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/attributes.rs:102:36
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn coerce_to_string(&self) -> Option<Cow<str>> {
[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] 102 |     pub(crate) fn coerce_to_string(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/attributes.rs:163:26
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub(crate) fn to_str(&self) -> Cow<str> {
[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] 163 |     pub(crate) fn to_str(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/configuration.rs:69:36
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn get_flags_configuration(&self) -> Option<Cow<[u8]>> {
[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] 69 |     pub fn get_flags_configuration(&self) -> Option<Cow<'_, [u8]>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/configuration.rs:77:38
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_bandits_configuration(&self) -> Option<Cow<[u8]>> {
[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] 77 |     pub fn get_bandits_configuration(&self) -> Option<Cow<'_, [u8]>> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn to_value(&self) -> log::kv::Value {
[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] 107 |     fn to_value(&self) -> log::kv::Value<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.67s
[INFO] running `Command { std: "docker" "inspect" "d00ff020aa872fb5709b689b1c1cbb3dad49e5e8b8f859a19afc7ffce2039dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00ff020aa872fb5709b689b1c1cbb3dad49e5e8b8f859a19afc7ffce2039dbc", kill_on_drop: false }`
[INFO] [stdout] d00ff020aa872fb5709b689b1c1cbb3dad49e5e8b8f859a19afc7ffce2039dbc
