[INFO] fetching crate sharpen 0.1.0... [INFO] building sharpen-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1 [INFO] extracting crate sharpen 0.1.0 into /workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate sharpen 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b8fd8dcfc76b8b205e3f8496a1ebf2ad42c6474599622d42a99c4b456368b594 [INFO] running `Command { std: "docker" "start" "-a" "b8fd8dcfc76b8b205e3f8496a1ebf2ad42c6474599622d42a99c4b456368b594", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b8fd8dcfc76b8b205e3f8496a1ebf2ad42c6474599622d42a99c4b456368b594", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8fd8dcfc76b8b205e3f8496a1ebf2ad42c6474599622d42a99c4b456368b594", kill_on_drop: false }` [INFO] [stdout] b8fd8dcfc76b8b205e3f8496a1ebf2ad42c6474599622d42a99c4b456368b594 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 005ab9c0a4385cde489a6af98a77620310d0e9c4db3fd0a9c9d8cf2c22a1511c [INFO] running `Command { std: "docker" "start" "-a" "005ab9c0a4385cde489a6af98a77620310d0e9c4db3fd0a9c9d8cf2c22a1511c", kill_on_drop: false }` [INFO] [stderr] Compiling sharpen v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `Command { std: "docker" "inspect" "005ab9c0a4385cde489a6af98a77620310d0e9c4db3fd0a9c9d8cf2c22a1511c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "005ab9c0a4385cde489a6af98a77620310d0e9c4db3fd0a9c9d8cf2c22a1511c", kill_on_drop: false }` [INFO] [stdout] 005ab9c0a4385cde489a6af98a77620310d0e9c4db3fd0a9c9d8cf2c22a1511c [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1af88ebbc5bfaba7a6764d2e8a20e102fe4b22441ceb4b3fdb9c820af322d5a9 [INFO] running `Command { std: "docker" "start" "-a" "1af88ebbc5bfaba7a6764d2e8a20e102fe4b22441ceb4b3fdb9c820af322d5a9", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling csv-core v0.1.12 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand_xoshiro v0.1.0 [INFO] [stderr] Compiling csv v1.3.1 [INFO] [stderr] Compiling criterion-plot v0.3.1 [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 6.41s [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 2` [INFO] running `Command { std: "docker" "inspect" "1af88ebbc5bfaba7a6764d2e8a20e102fe4b22441ceb4b3fdb9c820af322d5a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1af88ebbc5bfaba7a6764d2e8a20e102fe4b22441ceb4b3fdb9c820af322d5a9", kill_on_drop: false }` [INFO] [stdout] 1af88ebbc5bfaba7a6764d2e8a20e102fe4b22441ceb4b3fdb9c820af322d5a9