[INFO] cloning repository https://github.com/juan-fdz-hawa/learning_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juan-fdz-hawa/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuan-fdz-hawa%2Flearning_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuan-fdz-hawa%2Flearning_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] de56c8d59dad71761456c4e5d66d0bc5c700b4aa [INFO] checking juan-fdz-hawa/learning_rust against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuan-fdz-hawa%2Flearning_rust" "/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/juan-fdz-hawa/learning_rust [INFO] finished tweaking git repo https://github.com/juan-fdz-hawa/learning_rust [INFO] tweaked toml for git repo https://github.com/juan-fdz-hawa/learning_rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/juan-fdz-hawa/learning_rust on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/juan-fdz-hawa/learning_rust 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8baa8fa4386e695fdf716290e46fa68d8879c0ccffb4f1264d8ec9d527c5fd42 [INFO] running `Command { std: "docker" "start" "-a" "8baa8fa4386e695fdf716290e46fa68d8879c0ccffb4f1264d8ec9d527c5fd42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8baa8fa4386e695fdf716290e46fa68d8879c0ccffb4f1264d8ec9d527c5fd42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8baa8fa4386e695fdf716290e46fa68d8879c0ccffb4f1264d8ec9d527c5fd42", kill_on_drop: false }` [INFO] [stdout] 8baa8fa4386e695fdf716290e46fa68d8879c0ccffb4f1264d8ec9d527c5fd42 [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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e19bf81a05431de95466546658af4904197f1b4c29b48729c2b97a79ad20411b [INFO] running `Command { std: "docker" "start" "-a" "e19bf81a05431de95466546658af4904197f1b4c29b48729c2b97a79ad20411b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.89 [INFO] [stderr] Compiling unicode-ident v1.0.13 [INFO] [stderr] Compiling libc v0.2.162 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking pin-project-lite v0.2.15 [INFO] [stderr] Compiling serde v1.0.215 [INFO] [stderr] Checking bytes v1.8.0 [INFO] [stderr] Compiling serde_json v1.0.132 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling cc v1.1.37 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Compiling openssl v0.10.68 [INFO] [stderr] Compiling native-tls v0.2.12 [INFO] [stderr] Checking hashbrown v0.15.1 [INFO] [stderr] Checking litemap v0.7.3 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Compiling anyhow v1.0.93 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Checking allocator-api2 v0.2.20 [INFO] [stderr] Compiling form_urlencoded v1.2.1 [INFO] [stderr] Checking http v1.1.0 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Checking indexmap v2.6.0 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Compiling syn v2.0.87 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking mio v1.0.2 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Compiling concurrent-queue v2.5.0 [INFO] [stderr] Compiling openssl-probe v0.1.5 [INFO] [stderr] Compiling cpufeatures v0.2.15 [INFO] [stderr] Compiling unicode_categories v0.1.1 [INFO] [stderr] Compiling rustix v0.38.40 [INFO] [stderr] Compiling sha2 v0.10.8 [INFO] [stderr] Compiling hashlink v0.9.1 [INFO] [stderr] Compiling event-listener v5.3.1 [INFO] [stderr] Checking http-body v1.0.1 [INFO] [stderr] Compiling tokio v1.41.1 [INFO] [stderr] Compiling atoi v2.0.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.11 [INFO] [stderr] Compiling futures-intrusive v0.5.0 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Compiling spin v0.9.8 [INFO] [stderr] Checking sync_wrapper v1.0.1 [INFO] [stderr] Compiling linux-raw-sys v0.4.14 [INFO] [stderr] Compiling fastrand v2.2.0 [INFO] [stderr] Compiling openssl-sys v0.9.104 [INFO] [stderr] Compiling libsqlite3-sys v0.30.1 [INFO] [stderr] Compiling flume v0.11.1 [INFO] [stderr] Checking sqlformat v0.2.6 [INFO] [stderr] Checking anstream v0.6.18 [INFO] [stderr] Compiling thiserror v2.0.3 [INFO] [stderr] Checking sync_wrapper v0.1.2 [INFO] [stderr] Checking rustls-pki-types v1.10.0 [INFO] [stderr] Checking clap_lex v0.7.2 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Checking thread_local v1.1.8 [INFO] [stderr] Checking ipnet v2.10.1 [INFO] [stderr] Checking clap_builder v4.5.20 [INFO] [stderr] Checking dashmap v6.1.0 [INFO] [stderr] Checking dotenv v0.15.0 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking rwlocks v0.1.0 (/opt/rustwide/workdir/session_2/rwlocks) [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir/session_1/variables) [INFO] [stderr] Checking hello_thread v0.1.0 (/opt/rustwide/workdir/session_2/hello_thread) [INFO] [stderr] Checking dashing v0.1.0 (/opt/rustwide/workdir/session_2/dashing) [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> session_1/variables/src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let m = 5; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `n` is assigned to, but never used [INFO] [stdout] --> session_1/variables/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut n = 5; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_n` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> session_1/variables/src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | n += 1; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rustls-pemfile v2.2.0 [INFO] [stderr] Checking learning_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking memory_semantics v0.1.0 (/opt/rustwide/workdir/session_1/memory_semantics) [INFO] [stderr] Checking divide_work v0.1.0 (/opt/rustwide/workdir/session_2/divide_work) [INFO] [stderr] Checking mutexes v0.1.0 (/opt/rustwide/workdir/session_2/mutexes) [INFO] [stderr] Checking channels1 v0.1.0 (/opt/rustwide/workdir/session_2/channels1) [INFO] [stderr] Checking atomic v0.1.0 (/opt/rustwide/workdir/session_2/atomic) [INFO] [stderr] Checking deadlock v0.1.0 (/opt/rustwide/workdir/session_2/deadlock) [INFO] [stdout] warning: unused variable: `lock` [INFO] [stdout] --> session_2/deadlock/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let lock = MY_SHARED.lock().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_lock` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lock` [INFO] [stdout] --> session_2/deadlock/src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let lock = MY_SHARED.lock().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_lock` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lock` [INFO] [stdout] --> session_2/deadlock/src/main.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let lock = MY_SHARED.lock().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_lock` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking text_input v0.1.0 (/opt/rustwide/workdir/session_1/text_input) [INFO] [stderr] Checking thread_builder v0.1.0 (/opt/rustwide/workdir/session_2/thread_builder) [INFO] [stderr] Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/session_2/scoped_threads) [INFO] [stdout] warning: unused variable: `handler` [INFO] [stdout] --> session_2/thread_builder/src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let handler = thread::Builder::new() [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lock` [INFO] [stdout] --> session_2/deadlock/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let lock = MY_SHARED.lock().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_lock` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lock` [INFO] [stdout] --> session_2/deadlock/src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let lock = MY_SHARED.lock().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_lock` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lock` [INFO] [stdout] --> session_2/deadlock/src/main.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let lock = MY_SHARED.lock().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_lock` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> session_1/variables/src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let m = 5; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `n` is assigned to, but never used [INFO] [stdout] --> session_1/variables/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut n = 5; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_n` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> session_1/variables/src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | n += 1; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking hello_world v0.1.0 (/opt/rustwide/workdir/session_1/hello_world) [INFO] [stdout] warning: unused variable: `handler` [INFO] [stdout] --> session_2/thread_builder/src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let handler = thread::Builder::new() [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tempfile v3.14.0 [INFO] [stderr] error: could not compile `futures-util` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/a7b168ac4977e8e93a43448b44847adaa305d5a9/bin/rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.31/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 --warn=unreachable_pub --warn=unexpected_cfgs --warn=single_use_lifetimes --warn=rust_2018_idioms --warn=missing_debug_implementations --check-cfg 'cfg(futures_sanitizer)' --cfg 'feature="alloc"' --cfg 'feature="futures-io"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "async-await", "async-await-macro", "bilock", "cfg-target-has-atomic", "channel", "compat", "default", "futures-channel", "futures-io", "futures-macro", "futures-sink", "futures_01", "io", "io-compat", "memchr", "portable-atomic", "sink", "slab", "std", "tokio-io", "unstable", "write-all-vectored"))' -C metadata=861cde7e6d8010bf -C extra-filename=-3130dedf8430a295 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-8bb7a06892b41e67.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-20e452c883531448.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-26fb45e17926c80e.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-3c3f30b429261b4e.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-371cdb7d366b303a.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-5124f05a105e83a8.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-98755945da2574f7.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-b1dc7dcc59a852cc.rmeta --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" "e19bf81a05431de95466546658af4904197f1b4c29b48729c2b97a79ad20411b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e19bf81a05431de95466546658af4904197f1b4c29b48729c2b97a79ad20411b", kill_on_drop: false }` [INFO] [stdout] e19bf81a05431de95466546658af4904197f1b4c29b48729c2b97a79ad20411b