[INFO] cloning repository https://github.com/jimblandy/book-async-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimblandy/book-async-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fbook-async-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fbook-async-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3fd491b39e12dd9ff2030664d62c0e99dea15b5b [INFO] checking jimblandy/book-async-examples against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fbook-async-examples" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/jimblandy/book-async-examples [INFO] finished tweaking git repo https://github.com/jimblandy/book-async-examples [INFO] tweaked toml for git repo https://github.com/jimblandy/book-async-examples written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/jimblandy/book-async-examples 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 git repo https://github.com/jimblandy/book-async-examples 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 }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded argh_shared v0.1.12 [INFO] [stderr] Downloaded argh_derive v0.1.12 [INFO] [stderr] Downloaded security-framework-sys v2.12.1 [INFO] [stderr] Downloaded argh v0.1.12 [INFO] [stderr] Downloaded headers v0.3.9 [INFO] [stderr] Downloaded tungstenite v0.21.0 [INFO] [stderr] Downloaded warp v0.3.7 [INFO] [stderr] Downloaded cc v1.2.0 [INFO] [stderr] Downloaded anyhow v1.0.93 [INFO] [stderr] Downloaded serde_derive v1.0.215 [INFO] [stderr] Downloaded mime_guess v2.0.5 [INFO] [stderr] Downloaded multer v2.1.0 [INFO] [stderr] Downloaded tokio-tungstenite v0.21.0 [INFO] [stderr] Downloaded serde v1.0.215 [INFO] [stderr] Downloaded unicase v2.8.0 [INFO] [stderr] Downloaded data-encoding v2.6.0 [INFO] [stderr] Downloaded rustix v0.38.40 [INFO] [stderr] Downloaded libc v0.2.162 [INFO] [stderr] Downloaded tokio v1.41.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 }` [INFO] [stdout] e5f49b6bc7ea9dbd6283480ec3f201dcc4f7162851fcffbe82430c8ba3f24736 [INFO] running `Command { std: "docker" "start" "-a" "e5f49b6bc7ea9dbd6283480ec3f201dcc4f7162851fcffbe82430c8ba3f24736", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5f49b6bc7ea9dbd6283480ec3f201dcc4f7162851fcffbe82430c8ba3f24736", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5f49b6bc7ea9dbd6283480ec3f201dcc4f7162851fcffbe82430c8ba3f24736", kill_on_drop: false }` [INFO] [stdout] e5f49b6bc7ea9dbd6283480ec3f201dcc4f7162851fcffbe82430c8ba3f24736 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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_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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2fa7b1c08fd98c9eadf0743440fd1fbea95b6c047535997ea6cef7bd28f9c66b [INFO] running `Command { std: "docker" "start" "-a" "2fa7b1c08fd98c9eadf0743440fd1fbea95b6c047535997ea6cef7bd28f9c66b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.89 [INFO] [stderr] Compiling libc v0.2.162 [INFO] [stderr] Checking bytes v1.8.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking pin-project-lite v0.2.15 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] 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v0.3.31 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Compiling pkg-config v0.3.31 [INFO] [stderr] Checking tower-service v0.3.3 [INFO] [stderr] Compiling serde_json v1.0.132 [INFO] [stderr] Checking encoding_rs v0.8.35 [INFO] [stderr] Compiling cc v1.2.0 [INFO] [stderr] Compiling openssl v0.10.68 [INFO] [stderr] Compiling native-tls v0.2.12 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling anyhow v1.0.93 [INFO] [stderr] Checking http v1.1.0 [INFO] [stderr] Checking rustls-pki-types v1.10.0 [INFO] [stderr] Checking sync_wrapper v1.0.1 [INFO] [stderr] Checking base64 v0.22.1 [INFO] [stderr] Checking ipnet v2.10.1 [INFO] [stderr] Checking generic-array v0.14.7 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Checking rustls-pemfile v2.2.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking indexmap v2.6.0 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Checking cpufeatures v0.2.16 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling unicase v2.8.0 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling multer v2.1.0 [INFO] [stderr] Checking data-encoding v2.6.0 [INFO] [stderr] Compiling syn v2.0.87 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Checking regex-syntax v0.8.5 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Compiling mime_guess v2.0.5 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking http-body v1.0.1 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Compiling openssl-sys v0.9.104 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking mio v1.0.2 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking headers v0.3.9 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking http-body-util v0.1.2 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Checking env_logger v0.9.3 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Compiling zerofrom-derive v0.1.4 [INFO] [stderr] Compiling yoke-derive v0.7.4 [INFO] [stderr] Compiling zerovec-derive v0.10.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling icu_provider_macros v1.5.0 [INFO] [stderr] Compiling serde_derive v1.0.215 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling pin-project-internal v1.1.7 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking tokio v1.41.1 [INFO] [stderr] Checking pin-project v1.1.7 [INFO] [stderr] Checking zerofrom v0.1.4 [INFO] [stderr] Checking yoke v0.7.4 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking zerovec v0.10.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking tinystr v0.7.6 [INFO] [stderr] Checking icu_collections v1.5.0 [INFO] [stderr] Checking icu_locid v1.5.0 [INFO] [stderr] Checking icu_provider v1.5.0 [INFO] [stderr] Checking icu_locid_transform v1.5.0 [INFO] [stderr] Checking icu_properties v1.5.1 [INFO] [stderr] Checking tokio-util v0.7.12 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking explicit-futures v0.1.0 (/opt/rustwide/workdir/explicit-futures) [INFO] [stderr] Checking dropped-futures v0.1.0 (/opt/rustwide/workdir/dropped-futures) [INFO] [stderr] Checking recursive v0.1.0 (/opt/rustwide/workdir/recursive) [INFO] [stdout] warning: unused implementer of `Future` that must be used [INFO] [stdout] --> dropped-futures/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | print("Bonnie"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: futures do nothing unless you `.await` or poll them [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused implementer of `Future` that must be used [INFO] [stdout] --> dropped-futures/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | print("Bonnie"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: futures do nothing unless you `.await` or poll them [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copying_print` is never used [INFO] [stdout] --> explicit-futures/src/bin/credits-async-block.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn copying_print(message: &str) -> impl Future { [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 `bad_print_lifetime` is never used [INFO] [stdout] --> explicit-futures/src/bin/credits-async-block.rs:14:10 [INFO] [stdout] | [INFO] [stdout] 14 | async fn bad_print_lifetime(star: &str, costar: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copying_print` is never used [INFO] [stdout] --> explicit-futures/src/bin/credits-async-block.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn copying_print(message: &str) -> impl Future { [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 `bad_print_lifetime` is never used [INFO] [stdout] --> explicit-futures/src/bin/credits-async-block.rs:14:10 [INFO] [stdout] | [INFO] [stdout] 14 | async fn bad_print_lifetime(star: &str, costar: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling argh_shared v0.1.12 [INFO] [stderr] Checking h2 v0.4.6 [INFO] [stderr] Checking h2 v0.3.26 [INFO] [stderr] Compiling argh_derive v0.1.12 [INFO] [stderr] Checking icu_normalizer v1.5.0 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking idna_adapter v1.2.0 [INFO] [stderr] Checking idna v1.0.3 [INFO] [stderr] Checking url v2.5.3 [INFO] [stderr] Checking tungstenite v0.21.0 [INFO] [stderr] Checking argh v0.1.12 [INFO] [stderr] Checking tokio-tungstenite v0.21.0 [INFO] [stderr] Checking hyper v1.5.0 [INFO] [stderr] Checking hyper v0.14.31 [INFO] [stderr] Checking hyper-util v0.1.10 [INFO] [stderr] Checking hyper-tls v0.6.0 [INFO] [stderr] Checking reqwest v0.12.9 [INFO] [stderr] Checking wikipedia-reachable v0.1.0 (/opt/rustwide/workdir/wikipedia-reachable) [INFO] [stderr] Checking reqwest-wikipedia v0.1.0 (/opt/rustwide/workdir/reqwest-wikipedia) [INFO] [stderr] Checking reqwest-wikipedia-parsed v0.1.0 (/opt/rustwide/workdir/reqwest-wikipedia-parsed) [INFO] [stdout] warning: unused import: `std::future::Future` [INFO] [stdout] --> reqwest-wikipedia/src/bin/sync-function.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::future::Future` [INFO] [stdout] --> reqwest-wikipedia/src/bin/sync-function.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::future::Future; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking warp v0.3.7 [INFO] [stderr] Checking async-treesitter v0.1.0 (/opt/rustwide/workdir/async-treesitter) [INFO] [stderr] Checking mock-wikipedia-api v0.1.0 (/opt/rustwide/workdir/mock-wikipedia-api) [INFO] [stdout] warning: field `source` is never read [INFO] [stdout] --> async-treesitter/src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct ParseRust { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 42 | source: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseRust` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `source` is never read [INFO] [stdout] --> async-treesitter/src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct ParseRust { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 42 | source: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParseRust` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.17s [INFO] running `Command { std: "docker" "inspect" "2fa7b1c08fd98c9eadf0743440fd1fbea95b6c047535997ea6cef7bd28f9c66b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2fa7b1c08fd98c9eadf0743440fd1fbea95b6c047535997ea6cef7bd28f9c66b", kill_on_drop: false }` [INFO] [stdout] 2fa7b1c08fd98c9eadf0743440fd1fbea95b6c047535997ea6cef7bd28f9c66b