[INFO] cloning repository https://github.com/Ioka-Technologies/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ioka-Technologies/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoka-Technologies%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoka-Technologies%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 558e2e16fd23591ad1dc16784ee65ebcfeb36a75
[INFO] building Ioka-Technologies/rust-playground against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoka-Technologies%2Frust-playground" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ioka-Technologies/rust-playground
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/Ioka-Technologies/rust-playground
[INFO] tweaked toml for git repo https://github.com/Ioka-Technologies/rust-playground written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ioka-Technologies/rust-playground on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ioka-Technologies/rust-playground 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b6b1155fcb07eaa3f6879e035151eef883cc6784aee450b1dadae400601713f
[INFO] running `Command { std: "docker" "start" "-a" "7b6b1155fcb07eaa3f6879e035151eef883cc6784aee450b1dadae400601713f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b6b1155fcb07eaa3f6879e035151eef883cc6784aee450b1dadae400601713f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b6b1155fcb07eaa3f6879e035151eef883cc6784aee450b1dadae400601713f", kill_on_drop: false }`
[INFO] [stdout] 7b6b1155fcb07eaa3f6879e035151eef883cc6784aee450b1dadae400601713f
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 272177f788913808efe6e984b87faed4a68854818345deaa524fe501b4207d37
[INFO] running `Command { std: "docker" "start" "-a" "272177f788913808efe6e984b87faed4a68854818345deaa524fe501b4207d37", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling deunicode v1.4.3
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rayon v1.9.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling dummy v0.7.0
[INFO] [stderr]    Compiling fake v2.9.2
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lessons/threads.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::mpsc::{self, Receiver};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogLevel` is never used
[INFO] [stdout]  --> src/lessons/traits.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum LogLevel {
[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 `LoggingService` is never constructed
[INFO] [stdout]   --> src/lessons/traits.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct LoggingService {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_level`, `add_logger`, and `log` are never used
[INFO] [stdout]   --> src/lessons/traits.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl LoggingService {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new(level: LogLevel) -> LoggingService {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn set_level(&'_ mut self, level: LogLevel) -> &'_ mut Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn add_logger(&'_ mut self, logger: Rc<dyn Logger>) -> &'_ mut Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn log(&self, level: LogLevel, message: &str) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestLogger` is never constructed
[INFO] [stdout]   --> src/lessons/traits.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct TestLogger {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lessons/traits.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl TestLogger {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> TestLogger {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lessons/chaining.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             MEMBERS.clear();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lessons/chaining.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 | /                 MEMBERS.insert(
[INFO] [stdout] 43 | |                     i,
[INFO] [stdout] 44 | |                     Member::new(i, FirstName(EN).fake(), FreeEmail(EN).fake()),
[INFO] [stdout] 45 | |                 );
[INFO] [stdout]    | |_________________^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Work` is never constructed
[INFO] [stdout]   --> src/lessons/threads.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Work {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `process` are never used
[INFO] [stdout]   --> src/lessons/threads.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Work {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 17 |     fn new() -> Work {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn process(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_jobs` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn process_jobs(recv_channel: Receiver<&mut Work>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_thread` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn simple_thread() -> thread::JoinHandle<Vec<i32>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_and_atomic_ref_counts` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn mutex_and_atomic_ref_counts(num_increments: usize) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]   --> src/lessons/chaining.rs:95:30
[INFO] [stdout]    |
[INFO] [stdout] 95 |             if let Some(m) = MEMBERS.get_mut(&arg.id) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/lessons/chaining.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |         unsafe { MEMBERS.values().collect() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "272177f788913808efe6e984b87faed4a68854818345deaa524fe501b4207d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272177f788913808efe6e984b87faed4a68854818345deaa524fe501b4207d37", kill_on_drop: false }`
[INFO] [stdout] 272177f788913808efe6e984b87faed4a68854818345deaa524fe501b4207d37
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fd02c6daa299d4d6afc18d9adf611ed0d34df2d86bf44827dd198a0fdce7d34
[INFO] running `Command { std: "docker" "start" "-a" "2fd02c6daa299d4d6afc18d9adf611ed0d34df2d86bf44827dd198a0fdce7d34", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling bytecount v0.6.7
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling bstr v1.9.1
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr] error: could not compile `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name regex_syntax --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.8.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("arbitrary", "default", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=5ab57d3c03229f5a -C extra-filename=-03701eaa5490ec0b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2fd02c6daa299d4d6afc18d9adf611ed0d34df2d86bf44827dd198a0fdce7d34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd02c6daa299d4d6afc18d9adf611ed0d34df2d86bf44827dd198a0fdce7d34", kill_on_drop: false }`
[INFO] [stdout] 2fd02c6daa299d4d6afc18d9adf611ed0d34df2d86bf44827dd198a0fdce7d34
