[INFO] fetching crate erase 4.0.0...
[INFO] checking erase-4.0.0 against master#11ebe6512b4c77633c59f8dcdd421df3b79d1a9f for pr-103872
[INFO] extracting crate erase 4.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate erase 4.0.0 on toolchain 11ebe6512b4c77633c59f8dcdd421df3b79d1a9f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+11ebe6512b4c77633c59f8dcdd421df3b79d1a9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate erase 4.0.0
[INFO] finished tweaking crates.io crate erase 4.0.0
[INFO] tweaked toml for crates.io crate erase 4.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+11ebe6512b4c77633c59f8dcdd421df3b79d1a9f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+11ebe6512b4c77633c59f8dcdd421df3b79d1a9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+11ebe6512b4c77633c59f8dcdd421df3b79d1a9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a99df1cba435b310e6ccc1da23ac7a73e37dd53239e66d78822b49301b4c05db
[INFO] running `Command { std: "docker" "start" "-a" "a99df1cba435b310e6ccc1da23ac7a73e37dd53239e66d78822b49301b4c05db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a99df1cba435b310e6ccc1da23ac7a73e37dd53239e66d78822b49301b4c05db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99df1cba435b310e6ccc1da23ac7a73e37dd53239e66d78822b49301b4c05db", kill_on_drop: false }`
[INFO] [stdout] a99df1cba435b310e6ccc1da23ac7a73e37dd53239e66d78822b49301b4c05db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+11ebe6512b4c77633c59f8dcdd421df3b79d1a9f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e24f35d08a70572167560863824138d53754798580aaa1e4222cb5f16ab24ee4
[INFO] running `Command { std: "docker" "start" "-a" "e24f35d08a70572167560863824138d53754798580aaa1e4222cb5f16ab24ee4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling erase v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking quickcheck v0.7.2
[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/galois_8.rs:550:32
[INFO] [stdout]     |
[INFO] [stdout] 550 |         for len in length_list.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/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 550 |         for len in length_list.iter() {
[INFO] [stdout]     |                                ~~~~
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 550 -         for len in length_list.into_iter() {
[INFO] [stdout] 550 +         for len in length_list {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "e24f35d08a70572167560863824138d53754798580aaa1e4222cb5f16ab24ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e24f35d08a70572167560863824138d53754798580aaa1e4222cb5f16ab24ee4", kill_on_drop: false }`
[INFO] [stdout] e24f35d08a70572167560863824138d53754798580aaa1e4222cb5f16ab24ee4