[INFO] cloning repository https://github.com/monkey666-cr/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/monkey666-cr/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkey666-cr%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkey666-cr%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c330de64aeb4867a9dfe039d251ef89fbdedf10d
[INFO] fixing monkey666-cr/rust-practice against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonkey666-cr%2Frust-practice" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/monkey666-cr/rust-practice
[INFO] finished tweaking git repo https://github.com/monkey666-cr/rust-practice
[INFO] tweaked toml for git repo https://github.com/monkey666-cr/rust-practice written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/monkey666-cr/rust-practice on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/monkey666-cr/rust-practice 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74
[INFO] running `Command { std: "docker" "start" "1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating cli/rcli/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating ecosystem/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating macors/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking chrono v0.4.39
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking errno v0.3.11
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking thread-priority v1.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking thread-control v0.1.2
[INFO] [stderr]     Checking oneshot v0.1.8
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking affinity v0.1.2
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking miniz_oxide v0.8.2
[INFO] [stderr]     Checking unicode-ident v1.0.14
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling semver v1.0.24
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.7
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]    Compiling dary_heap v0.3.7
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]    Compiling cc v1.2.5
[INFO] [stderr]    Compiling zstd-safe v7.2.1
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]     Checking time v0.3.37
[INFO] [stderr]     Checking brotli-decompressor v4.0.1
[INFO] [stderr]     Checking cedarwood v0.4.6
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking matchit v0.8.4
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]     Checking file-rotate v0.7.6
[INFO] [stderr]     Checking winnow v0.6.20
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking clap_builder v4.5.23
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking http-range-header v0.4.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling libflate_lz77 v2.1.0
[INFO] [stderr]    Compiling jieba-macros v0.7.1
[INFO] [stderr]    Compiling libflate v2.1.0
[INFO] [stderr]     Checking brotli v7.0.0
[INFO] [stderr]    Compiling zstd-sys v2.0.13+zstd.1.5.6
[INFO] [stderr]    Compiling blake3 v1.5.5
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking darling_core v0.20.10
[INFO] [stderr]     Checking zstd v0.13.2
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling pin-project-internal v1.1.8
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling prost-derive v0.13.4
[INFO] [stderr]    Compiling include-flate-codegen v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling enum_dispatch v0.3.13
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.8
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking opentelemetry v0.27.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]     Checking prost v0.13.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]     Checking clap v4.5.23
[INFO] [stderr]     Checking macors v0.1.0 (/opt/rustwide/workdir/macors)
[INFO] [stderr]    Migrating macors/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]    Migrating macors/examples/enum_macro.rs from 2021 edition to 2024
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]    Migrating macors/examples/my_vec.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed macors/examples/my_vec.rs (3 fixes)
[INFO] [stderr]    Migrating macors/examples/enum_macro_darling.rs from 2021 edition to 2024
[INFO] [stderr]     Checking include-flate v0.3.0
[INFO] [stderr]     Checking jieba-rs v0.7.2
[INFO] [stderr]     Checking rust-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking axum-core v0.4.5
[INFO] [stderr]     Checking axum-core v0.5.0
[INFO] [stderr]     Checking rusty_pool v0.7.0
[INFO] [stderr]     Checking concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]     Checking tokio-util v0.7.13
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking async-compression v0.4.18
[INFO] [stderr]    Migrating concurrency/src/lib.rs from 2021 edition to 2024
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> concurrency/src/martix.rs:109:37
[INFO] [stdout]     |
[INFO] [stdout] 107 |                   for msg in rx {
[INFO] [stdout]     |                       ---    --
[INFO] [stdout]     |                       |      |
[INFO] [stdout]     |                       |      this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]     |                       |      `#1` will be dropped later as of Edition 2024
[INFO] [stdout]     |                       `msg` calls a custom destructor
[INFO] [stdout]     |                       `msg` will be dropped later as of Edition 2024
[INFO] [stdout] 108 |                       let value = dot_product(msg.input.row, msg.input.col)?;
[INFO] [stdout]     |                                   ------------------------------------------
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   this value will be stored in a temporary; let us call it `#2`
[INFO] [stdout]     |                                   `#2` will be dropped later as of Edition 2024
[INFO] [stdout] 109 |                       if let Err(e) = msg.sender.send(MsgOutput {
[INFO] [stdout]     |  ________________________________-____^
[INFO] [stdout]     | |                                |
[INFO] [stdout]     | |                                `e` calls a custom destructor
[INFO] [stdout]     | |                                `e` will be dropped later as of Edition 2024
[INFO] [stdout] 110 | |                         idx: msg.input.idx,
[INFO] [stdout] 111 | |                         value,
[INFO] [stdout] 112 | |                     }) {
[INFO] [stdout]     | |                      ^
[INFO] [stdout]     | |                      |
[INFO] [stdout]     | |______________________this value will be stored in a temporary; let us call it `#3`
[INFO] [stdout]     |                        up until Edition 2021 `#3` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 115 |                   }
[INFO] [stdout]     |                   - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]     |
[INFO] [stdout] note: `#3` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/errors.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl<T> Drop for SendError<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/lib.rs:359:1
[INFO] [stdout]     |
[INFO] [stdout] 359 | impl<T> Drop for Sender<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `msg` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/lib.rs:359:1
[INFO] [stdout]     |
[INFO] [stdout] 359 | impl<T> Drop for Sender<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `#2` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.95/src/error.rs:662:1
[INFO] [stdout]     |
[INFO] [stdout] 662 | impl Drop for Error {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `e` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/errors.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl<T> Drop for SendError<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]     = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> concurrency/src/martix.rs:109:37
[INFO] [stdout]     |
[INFO] [stdout] 107 |                   for msg in rx {
[INFO] [stdout]     |                       ---    --
[INFO] [stdout]     |                       |      |
[INFO] [stdout]     |                       |      this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]     |                       |      `#1` will be dropped later as of Edition 2024
[INFO] [stdout]     |                       `msg` calls a custom destructor
[INFO] [stdout]     |                       `msg` will be dropped later as of Edition 2024
[INFO] [stdout] 108 |                       let value = dot_product(msg.input.row, msg.input.col)?;
[INFO] [stdout]     |                                   ------------------------------------------
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   this value will be stored in a temporary; let us call it `#2`
[INFO] [stdout]     |                                   `#2` will be dropped later as of Edition 2024
[INFO] [stdout] 109 |                       if let Err(e) = msg.sender.send(MsgOutput {
[INFO] [stdout]     |  ________________________________-____^
[INFO] [stdout]     | |                                |
[INFO] [stdout]     | |                                `e` calls a custom destructor
[INFO] [stdout]     | |                                `e` will be dropped later as of Edition 2024
[INFO] [stdout] 110 | |                         idx: msg.input.idx,
[INFO] [stdout] 111 | |                         value,
[INFO] [stdout] 112 | |                     }) {
[INFO] [stdout]     | |                      ^
[INFO] [stdout]     | |                      |
[INFO] [stdout]     | |______________________this value will be stored in a temporary; let us call it `#3`
[INFO] [stdout]     |                        up until Edition 2021 `#3` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 115 |                   }
[INFO] [stdout]     |                   - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]     |
[INFO] [stdout] note: `#3` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/errors.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl<T> Drop for SendError<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/lib.rs:359:1
[INFO] [stdout]     |
[INFO] [stdout] 359 | impl<T> Drop for Sender<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `msg` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/lib.rs:359:1
[INFO] [stdout]     |
[INFO] [stdout] 359 | impl<T> Drop for Sender<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `#2` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.95/src/error.rs:662:1
[INFO] [stdout]     |
[INFO] [stdout] 662 | impl Drop for Error {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `e` invokes this custom destructor
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oneshot-0.1.8/src/errors.rs:57:1
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl<T> Drop for SendError<T> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]     = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating concurrency/examples/refcell.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/matrix.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/arc_mutex.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/oneshot.rs from 2021 edition to 2024
[INFO] [stderr]     Checking h2 v0.4.7
[INFO] [stderr]    Migrating concurrency/src/main.rs from 2021 edition to 2024
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tower-http v0.6.2
[INFO] [stderr]    Migrating concurrency/examples/safe_hashmap.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/thread_park_unpark.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/move.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/lazycell.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/tokio_mpsc.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/thread1.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/drop_metux.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/oncecell.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/async.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/watch.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/pool.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/once_cell.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/dredis.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/semaphore.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/arc.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/dashmap.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/timeout.rs from 2021 edition to 2024
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]     --> concurrency/examples/timeout.rs:10:57
[INFO] [stdout]      |
[INFO] [stdout]    8 |     let (_tx, rx) = oneshot::channel::<u32>();
[INFO] [stdout]      |          ---
[INFO] [stdout]      |          |
[INFO] [stdout]      |          `_tx` calls a custom destructor
[INFO] [stdout]      |          `_tx` will be dropped later as of Edition 2024
[INFO] [stdout]    9 |
[INFO] [stdout]   10 |     if let Err(_) = timeout(Duration::from_secs(1), rx).await {
[INFO] [stdout]      |                                                         ^^^^^
[INFO] [stdout]      |                                                         |
[INFO] [stdout]      |                                                         this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]      |                                                         up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout] ...
[INFO] [stdout]   13 | }
[INFO] [stdout]      | - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]      |
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.43.0/src/runtime/time/entry.rs:652:1
[INFO] [stdout]      |
[INFO] [stdout]  652 | impl Drop for TimerEntry {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.43.0/src/sync/oneshot.rs:1072:1
[INFO] [stdout]      |
[INFO] [stdout] 1072 | impl<T> Drop for Receiver<T> {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `_tx` invokes this custom destructor
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.43.0/src/sync/oneshot.rs:844:1
[INFO] [stdout]      |
[INFO] [stdout]  844 | impl<T> Drop for Sender<T> {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]      = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating concurrency/examples/safe_vec.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/rc.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/tokio_mutex.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/broadcast.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/atomic_relaxed.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/lazylock.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/metrics.rs from 2021 edition to 2024
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Migrating concurrency/examples/once_cell2.rs from 2021 edition to 2024
[INFO] [stderr]     Checking serde_path_to_error v0.1.16
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]    Migrating concurrency/examples/cell.rs from 2021 edition to 2024
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Migrating concurrency/examples/atomic.rs from 2021 edition to 2024
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]    Migrating concurrency/examples/cow.rs from 2021 edition to 2024
[INFO] [stderr]     Checking toml_edit v0.22.22
[INFO] [stderr]    Migrating concurrency/examples/thread_local.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/try_lock.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed concurrency/examples/try_lock.rs (1 fix)
[INFO] [stderr]    Migrating concurrency/examples/thread_priority.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/crossbeam_scoped.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/tokio_barrier.rs from 2021 edition to 2024
[INFO] [stderr]     Checking opentelemetry_sdk v0.27.1
[INFO] [stderr]    Migrating concurrency/examples/barrier.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/rwmutex.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/arc_swap.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/channel.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/once.rs from 2021 edition to 2024
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> concurrency/examples/once.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     unsafe { GLOBAL_CONFIG.as_ref().unwrap() }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `--force-warn static-mut-refs` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating concurrency/examples/oncurrency_count.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/condvar.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/scope_thread.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/thread_pair.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/sleep.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/tokio_notify.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/poisoning.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/create_thread.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/panic_thread.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/futures.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/barrier2.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/tokio_rwlock.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/thread_builder.rs from 2021 edition to 2024
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]    Migrating concurrency/examples/tokio_command.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating concurrency/examples/current_thread.rs from 2021 edition to 2024
[INFO] [stderr]     Checking hyper v1.5.2
[INFO] [stderr]     Checking tracing-opentelemetry v0.28.0
[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stderr]     Checking axum v0.7.9
[INFO] [stderr]     Checking hyper-timeout v0.5.2
[INFO] [stderr]     Checking axum v0.8.1
[INFO] [stderr]     Checking tonic v0.12.3
[INFO] [stderr]     Checking rcli v0.1.0 (/opt/rustwide/workdir/cli/rcli)
[INFO] [stderr]    Migrating cli/rcli/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating cli/rcli/src/main.rs from 2021 edition to 2024
[INFO] [stderr]     Checking opentelemetry-proto v0.27.0
[INFO] [stderr]     Checking opentelemetry-otlp v0.27.0
[INFO] [stderr]     Checking ecosystem v0.1.0 (/opt/rustwide/workdir/ecosystem)
[INFO] [stderr]    Migrating ecosystem/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating ecosystem/examples/jieba.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating ecosystem/examples/log.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating ecosystem/examples/error.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating ecosystem/examples/axum_tracing.rs from 2021 edition to 2024
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] [stderr] crater-edition-check: rcli v0.1.0 (/opt/rustwide/workdir/cli/rcli) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: concurrency v0.1.0 (/opt/rustwide/workdir/concurrency) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: ecosystem v0.1.0 (/opt/rustwide/workdir/ecosystem) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: macors v0.1.0 (/opt/rustwide/workdir/macors) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: rust-practice v0.1.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr]     Checking concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]     Checking ecosystem v0.1.0 (/opt/rustwide/workdir/ecosystem)
[INFO] [stderr]     Checking rust-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling macors v0.1.0 (/opt/rustwide/workdir/macors)
[INFO] [stderr]     Checking rcli v0.1.0 (/opt/rustwide/workdir/cli/rcli)
[INFO] [stdout] warning: methods `is_empty`, `size`, `pop`, `peek`, `peek_mut`, and `into_iter` are never used
[INFO] [stdout]   --> src/algorithms/linked_list.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T> List<T> {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn peek(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn peek_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn into_iter(self) -> IntoIterator<T> {
[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 `IntoIterator` is never constructed
[INFO] [stdout]   --> src/algorithms/linked_list.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct IntoIterator<T>(List<T>);
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]  --> src/algorithms/quick_sort.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn quick_sort<T: PartialOrd>(data: &mut [T]) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partition` is never used
[INFO] [stdout]   --> src/algorithms/quick_sort.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn partition<T: PartialOrd>(data: &mut [T]) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/algorithms/linked_list.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn iter(&self) -> Iter<T> {
[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] 60 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/algorithms/linked_list.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 66 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_empty`, `peek_mut`, and `into_iter` are never used
[INFO] [stdout]   --> src/algorithms/linked_list.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T> List<T> {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn peek_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn into_iter(self) -> IntoIterator<T> {
[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 `IntoIterator` is never constructed
[INFO] [stdout]   --> src/algorithms/linked_list.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct IntoIterator<T>(List<T>);
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/algorithms/linked_list.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn iter(&self) -> Iter<T> {
[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] 60 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/algorithms/linked_list.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 66 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `channel`
[INFO] [stdout]  --> concurrency/examples/channel.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     sync::mpsc::{channel, sync_channel},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a shared reference to mutable static
[INFO] [stdout]   --> concurrency/examples/once.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     unsafe { GLOBAL_CONFIG.as_ref().unwrap() }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `concurrency` (example "once") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `sleep`
[INFO] [stdout]  --> concurrency/examples/pool.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 |     sync::{mpsc::channel, Arc, Mutex},
[INFO] [stdout]   |                           ^^^  ^^^^^
[INFO] [stdout] 3 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rayon_thread_scoped` is never used
[INFO] [stdout]   --> concurrency/examples/pool.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn rayon_thread_scoped() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `threadpool_create` is never used
[INFO] [stdout]   --> concurrency/examples/pool.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn threadpool_create() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rusty_pool_example` is never used
[INFO] [stdout]   --> concurrency/examples/pool.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn rusty_pool_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_async_fn` is never used
[INFO] [stdout]    --> concurrency/examples/pool.rs:103:10
[INFO] [stdout]     |
[INFO] [stdout] 103 | async fn some_async_fn(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rusty_pool_example2` is never used
[INFO] [stdout]    --> concurrency/examples/pool.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn rusty_pool_example2() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74", kill_on_drop: false }`
[INFO] [stdout] 1b671272642f24ce62b2af891473c06c3b23f5d49eacd8efe979d020ab179f74
