[INFO] fetching crate gnir 0.16.5...
[INFO] checking gnir-0.16.5 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate gnir 0.16.5 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate gnir 0.16.5 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gnir 0.16.5
[INFO] finished tweaking crates.io crate gnir 0.16.5
[INFO] tweaked toml for crates.io crate gnir 0.16.5 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.2.50
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.27
[INFO] [stderr]   Downloaded futures v0.1.31
[INFO] [stderr]   Downloaded console_error_panic_hook v0.1.6
[INFO] [stderr]   Downloaded detsurtnu v0.7.0
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.2.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e91d231f6be83096fd6498f24bd3bac4219733677b3c8f79e32611e550702fcd
[INFO] running `Command { std: "docker" "start" "-a" "e91d231f6be83096fd6498f24bd3bac4219733677b3c8f79e32611e550702fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e91d231f6be83096fd6498f24bd3bac4219733677b3c8f79e32611e550702fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91d231f6be83096fd6498f24bd3bac4219733677b3c8f79e32611e550702fcd", kill_on_drop: false }`
[INFO] [stdout] e91d231f6be83096fd6498f24bd3bac4219733677b3c8f79e32611e550702fcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2145fac0b074f335385b1a79c453b3a1ec4b0ece7b5addbef3acce967c948744
[INFO] running `Command { std: "docker" "start" "-a" "2145fac0b074f335385b1a79c453b3a1ec4b0ece7b5addbef3acce967c948744", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking detsurtnu v0.7.0
[INFO] [stderr]    Compiling gnir v0.16.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 <https://github.com/rust-lang/rust/issues/37872> for more information
[INFO] [stdout]   --> build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     legacy_directory_ownership,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: 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]    --> build.rs:421:10
[INFO] [stdout]     |
[INFO] [stdout] 421 |     libs.into_iter()
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> build.rs:33:5
[INFO] [stdout]     |
[INFO] [stdout] 33  |     warnings
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = note: `#[forbid(array_into_iter)]` implied by `#[forbid(warnings)]`
[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] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 421 |     libs.iter()
[INFO] [stdout]     |          ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 421 |     IntoIterator::into_iter(libs)
[INFO] [stdout]     |     ++++++++++++++++++++++++    ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gnir` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "2145fac0b074f335385b1a79c453b3a1ec4b0ece7b5addbef3acce967c948744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2145fac0b074f335385b1a79c453b3a1ec4b0ece7b5addbef3acce967c948744", kill_on_drop: false }`
[INFO] [stdout] 2145fac0b074f335385b1a79c453b3a1ec4b0ece7b5addbef3acce967c948744