[INFO] cloning repository https://github.com/integrational/rust-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/integrational/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintegrational%2Frust-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintegrational%2Frust-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3735d41deaa0e5f5262c29955d4b09b4ffe02434 [INFO] documenting integrational/rust-exercises against 1.61.0 for beta-1.62-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintegrational%2Frust-exercises" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/integrational/rust-exercises on toolchain 1.61.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/integrational/rust-exercises [INFO] finished tweaking git repo https://github.com/integrational/rust-exercises [INFO] tweaked toml for git repo https://github.com/integrational/rust-exercises written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/integrational/rust-exercises already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] fb802c124476cafcfd277ca60c611e1ca796bccb9eb167039bff33caf7046b50 [INFO] running `Command { std: "docker" "start" "-a" "fb802c124476cafcfd277ca60c611e1ca796bccb9eb167039bff33caf7046b50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb802c124476cafcfd277ca60c611e1ca796bccb9eb167039bff33caf7046b50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb802c124476cafcfd277ca60c611e1ca796bccb9eb167039bff33caf7046b50", kill_on_drop: false }` [INFO] [stdout] fb802c124476cafcfd277ca60c611e1ca796bccb9eb167039bff33caf7046b50 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6d2d131e98e72257ad0ecaff756c3695c3fd53e40bb03318791a08adf56db203 [INFO] running `Command { std: "docker" "start" "-a" "6d2d131e98e72257ad0ecaff756c3695c3fd53e40bb03318791a08adf56db203", kill_on_drop: false }` [INFO] [stderr] Documenting exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/pig_latin.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 31 | match (&self.state, is_word_char(c)) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 39 | self.push_word_suffix(*firstc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^-------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `mean` [INFO] [stdout] --> src/int_stats.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | mean: f64, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `IntStats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/int_stats.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `median` [INFO] [stdout] --> src/int_stats.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | median: f64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IntStats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/int_stats.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `mode` [INFO] [stdout] --> src/int_stats.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | mode: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `IntStats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/int_stats.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.56s [INFO] running `Command { std: "docker" "inspect" "6d2d131e98e72257ad0ecaff756c3695c3fd53e40bb03318791a08adf56db203", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d2d131e98e72257ad0ecaff756c3695c3fd53e40bb03318791a08adf56db203", kill_on_drop: false }` [INFO] [stdout] 6d2d131e98e72257ad0ecaff756c3695c3fd53e40bb03318791a08adf56db203 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 898da887e1bcdcabdd045c4ec804a9465f0eb51a29fc05f85231e030cb12f7dc [INFO] running `Command { std: "docker" "start" "-a" "898da887e1bcdcabdd045c4ec804a9465f0eb51a29fc05f85231e030cb12f7dc", kill_on_drop: false }` [INFO] [stderr] Documenting exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.57s [INFO] running `Command { std: "docker" "inspect" "898da887e1bcdcabdd045c4ec804a9465f0eb51a29fc05f85231e030cb12f7dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "898da887e1bcdcabdd045c4ec804a9465f0eb51a29fc05f85231e030cb12f7dc", kill_on_drop: false }` [INFO] [stdout] 898da887e1bcdcabdd045c4ec804a9465f0eb51a29fc05f85231e030cb12f7dc