[INFO] fetching crate splitmut 0.2.1...
[INFO] building splitmut-0.2.1 against try#8aaecdf5df68a6fbc126704e44d399ba2fe66bf2 for pr-94962
[INFO] extracting crate splitmut 0.2.1 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate splitmut 0.2.1 on toolchain 8aaecdf5df68a6fbc126704e44d399ba2fe66bf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate splitmut 0.2.1
[INFO] finished tweaking crates.io crate splitmut 0.2.1
[INFO] tweaked toml for crates.io crate splitmut 0.2.1 written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "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" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 568bbac407ed7a98af4cf62f4ae46d17af45e49f410a0a694026b5b57035085c
[INFO] running `Command { std: "docker" "start" "-a" "568bbac407ed7a98af4cf62f4ae46d17af45e49f410a0a694026b5b57035085c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "568bbac407ed7a98af4cf62f4ae46d17af45e49f410a0a694026b5b57035085c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "568bbac407ed7a98af4cf62f4ae46d17af45e49f410a0a694026b5b57035085c", kill_on_drop: false }`
[INFO] [stdout] 568bbac407ed7a98af4cf62f4ae46d17af45e49f410a0a694026b5b57035085c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 102f5b49da4794805179aaeb519148b5e01c3fe79cf8a39698b951ca9bc25ebd
[INFO] running `Command { std: "docker" "start" "-a" "102f5b49da4794805179aaeb519148b5e01c3fe79cf8a39698b951ca9bc25ebd", kill_on_drop: false }`
[INFO] [stderr]    Compiling splitmut v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:234:17
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let p = try!(to_r(self.0.get1_mut(k)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |          f.write_str(self.description())
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "102f5b49da4794805179aaeb519148b5e01c3fe79cf8a39698b951ca9bc25ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102f5b49da4794805179aaeb519148b5e01c3fe79cf8a39698b951ca9bc25ebd", kill_on_drop: false }`
[INFO] [stdout] 102f5b49da4794805179aaeb519148b5e01c3fe79cf8a39698b951ca9bc25ebd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30443280e7d899e3773fbd53582c559cf67f26907b2a866aa1af51e5c2d4bc11
[INFO] running `Command { std: "docker" "start" "-a" "30443280e7d899e3773fbd53582c559cf67f26907b2a866aa1af51e5c2d4bc11", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling splitmut v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:234:17
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let p = try!(to_r(self.0.get1_mut(k)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |          f.write_str(self.description())
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:234:17
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let p = try!(to_r(self.0.get1_mut(k)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |          f.write_str(self.description())
[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/lib.rs:313:42
[INFO] [stdout]     |
[INFO] [stdout] 313 |     let z: Vec<_> = h.get_mut_iter(slice.into_iter().map(|&k| k)).collect();
[INFO] [stdout]     |                                          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[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] 313 |     let z: Vec<_> = h.get_mut_iter(slice.iter().map(|&k| k)).collect();
[INFO] [stdout]     |                                          ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 313 |     let z: Vec<_> = h.get_mut_iter(IntoIterator::into_iter(slice).map(|&k| k)).collect();
[INFO] [stdout]     |                                    ++++++++++++++++++++++++     ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/splitmut-9d5a2002f1c41463)
[INFO] running `Command { std: "docker" "inspect" "30443280e7d899e3773fbd53582c559cf67f26907b2a866aa1af51e5c2d4bc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30443280e7d899e3773fbd53582c559cf67f26907b2a866aa1af51e5c2d4bc11", kill_on_drop: false }`
[INFO] [stdout] 30443280e7d899e3773fbd53582c559cf67f26907b2a866aa1af51e5c2d4bc11