[INFO] fetching crate sharpen 0.1.0... [INFO] building sharpen-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] extracting crate sharpen 0.1.0 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate sharpen 0.1.0 [INFO] finished tweaking crates.io crate sharpen 0.1.0 [INFO] tweaked toml for crates.io crate sharpen 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate sharpen 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 52 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.2.11 (available: v0.7.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_os v0.1.3 [INFO] [stderr] Downloaded cloudabi v0.0.3 [INFO] [stderr] Downloaded criterion-plot v0.3.1 [INFO] [stderr] Downloaded tinytemplate v1.2.1 [INFO] [stderr] Downloaded cast v0.2.7 [INFO] [stderr] Downloaded itertools v0.8.2 [INFO] [stderr] Downloaded criterion v0.2.11 [INFO] [stderr] Downloaded rand_xoshiro v0.1.0 [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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] afafcfa7b1e2f6c170d4e349b3c3b95eb14ee12b991dde0a6e11408fa4560d68 [INFO] running `Command { std: "docker" "start" "-a" "afafcfa7b1e2f6c170d4e349b3c3b95eb14ee12b991dde0a6e11408fa4560d68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "afafcfa7b1e2f6c170d4e349b3c3b95eb14ee12b991dde0a6e11408fa4560d68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "afafcfa7b1e2f6c170d4e349b3c3b95eb14ee12b991dde0a6e11408fa4560d68", kill_on_drop: false }` [INFO] [stdout] afafcfa7b1e2f6c170d4e349b3c3b95eb14ee12b991dde0a6e11408fa4560d68 [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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17f0ca6f870d5976efd4bc50a65a2ccec6fd11a84e0d040c92172df71786b42a [INFO] running `Command { std: "docker" "start" "-a" "17f0ca6f870d5976efd4bc50a65a2ccec6fd11a84e0d040c92172df71786b42a", kill_on_drop: false }` [INFO] [stderr] Compiling sharpen v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `Command { std: "docker" "inspect" "17f0ca6f870d5976efd4bc50a65a2ccec6fd11a84e0d040c92172df71786b42a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17f0ca6f870d5976efd4bc50a65a2ccec6fd11a84e0d040c92172df71786b42a", kill_on_drop: false }` [INFO] [stdout] 17f0ca6f870d5976efd4bc50a65a2ccec6fd11a84e0d040c92172df71786b42a [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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a7dda4b72a7fab6dcd916df35272a9dd0ac8946f04c8f783f2fef76ead70d26 [INFO] running `Command { std: "docker" "start" "-a" "2a7dda4b72a7fab6dcd916df35272a9dd0ac8946f04c8f783f2fef76ead70d26", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling semver v1.0.27 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling ryu v1.0.20 [INFO] [stderr] Compiling rayon-core v1.13.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling itoa v1.0.15 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling unicode-width v0.1.14 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling rand_xoshiro v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling csv-core v0.1.12 [INFO] [stderr] Compiling criterion-plot v0.3.1 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling csv v1.3.1 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling criterion v0.2.11 [INFO] [stderr] Compiling sharpen v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021 [INFO] [stdout] --> src/tree_collapse/tests.rs:62:18 [INFO] [stdout] | [INFO] [stdout] 62 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 62 - .into_iter() [INFO] [stdout] 62 + .iter() [INFO] [stdout] | [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 61 - mapping: [(1, 0), (2, 0), (4, 3), (5, 4), (6, 3), (7, 3)] [INFO] [stdout] 61 + mapping: IntoIterator::into_iter([(1, 0), (2, 0), (4, 3), (5, 4), (6, 3), (7, 3)]) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021 [INFO] [stdout] --> src/tree_collapse/tests.rs:105:18 [INFO] [stdout] | [INFO] [stdout] 105 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 105 - .into_iter() [INFO] [stdout] 105 + .iter() [INFO] [stdout] | [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 104 - mapping: [(0, 2), (1, 2), (3, 4), (4, 7), (5, 7), (6, 7)] [INFO] [stdout] 104 + mapping: IntoIterator::into_iter([(0, 2), (1, 2), (3, 4), (4, 7), (5, 7), (6, 7)]) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 19.52s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "2a7dda4b72a7fab6dcd916df35272a9dd0ac8946f04c8f783f2fef76ead70d26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a7dda4b72a7fab6dcd916df35272a9dd0ac8946f04c8f783f2fef76ead70d26", kill_on_drop: false }` [INFO] [stdout] 2a7dda4b72a7fab6dcd916df35272a9dd0ac8946f04c8f783f2fef76ead70d26