[INFO] fetching crate sharpen 0.1.0...
[INFO] checking sharpen-0.1.0 against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721
[INFO] extracting crate sharpen 0.1.0 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sharpen 0.1.0 on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "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" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.8.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1
[INFO] running `Command { std: "docker" "start" "b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking sharpen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.54s
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[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] 62 -                 .into_iter()
[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] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[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] 105 -                 .into_iter()
[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] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1", kill_on_drop: false }`
[INFO] [stdout] b04642a20fa9d0f0ca16889c6efcafa7189af7d1fb541d2e8ea30f0a06b8b2f1
