[INFO] cloning repository https://github.com/FauxFaux/tyrant-decr [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FauxFaux/tyrant-decr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ftyrant-decr", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ftyrant-decr'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 08ebf9afd7169be520ba65bde2ee6701371374d7 [INFO] checking FauxFaux/tyrant-decr against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ftyrant-decr" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FauxFaux/tyrant-decr on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/FauxFaux/tyrant-decr [INFO] finished tweaking git repo https://github.com/FauxFaux/tyrant-decr [INFO] tweaked toml for git repo https://github.com/FauxFaux/tyrant-decr written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/FauxFaux/tyrant-decr already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded transpose v0.1.0 [INFO] [stderr] Downloaded rustfft v3.0.0 [INFO] [stderr] Downloaded strength_reduce v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f271380577ab4266835910acd65be4535bdb9dbb6a5b72b83e747f59d32317f5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f271380577ab4266835910acd65be4535bdb9dbb6a5b72b83e747f59d32317f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f271380577ab4266835910acd65be4535bdb9dbb6a5b72b83e747f59d32317f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f271380577ab4266835910acd65be4535bdb9dbb6a5b72b83e747f59d32317f5", kill_on_drop: false }` [INFO] [stdout] f271380577ab4266835910acd65be4535bdb9dbb6a5b72b83e747f59d32317f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--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] 992c794975d18319e0107900fd9ea05dfc9e2adf03b10c6a451e395854be7bd2 [INFO] running `Command { std: "docker" "start" "-a" "992c794975d18319e0107900fd9ea05dfc9e2adf03b10c6a451e395854be7bd2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.26 [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Checking rustc-demangle v0.1.13 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking strength_reduce v0.2.1 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking transpose v0.1.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking rustfft v3.0.0 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking decr v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/main.rs:42:18 [INFO] [stdout] | [INFO] [stdout] 42 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/main.rs:42:18 [INFO] [stdout] | [INFO] [stdout] 42 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 30.58s [INFO] running `Command { std: "docker" "inspect" "992c794975d18319e0107900fd9ea05dfc9e2adf03b10c6a451e395854be7bd2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "992c794975d18319e0107900fd9ea05dfc9e2adf03b10c6a451e395854be7bd2", kill_on_drop: false }` [INFO] [stdout] 992c794975d18319e0107900fd9ea05dfc9e2adf03b10c6a451e395854be7bd2