[INFO] fetching crate collected 0.4.0...
[INFO] building collected-0.4.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate collected 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate collected 0.4.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate collected 0.4.0
[INFO] finished tweaking crates.io crate collected 0.4.0
[INFO] tweaked toml for crates.io crate collected 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.7.0)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f43222d40fdce9bb23a60a3bcf5187a0cb1f921c6b84590ce941fd6f440489f
[INFO] running `Command { std: "docker" "start" "-a" "8f43222d40fdce9bb23a60a3bcf5187a0cb1f921c6b84590ce941fd6f440489f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f43222d40fdce9bb23a60a3bcf5187a0cb1f921c6b84590ce941fd6f440489f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f43222d40fdce9bb23a60a3bcf5187a0cb1f921c6b84590ce941fd6f440489f", kill_on_drop: false }`
[INFO] [stdout] 8f43222d40fdce9bb23a60a3bcf5187a0cb1f921c6b84590ce941fd6f440489f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14c45af1acaf084c0c32ddff3d38d9dad17e71b88d074e319a82c31b48473465
[INFO] running `Command { std: "docker" "start" "-a" "14c45af1acaf084c0c32ddff3d38d9dad17e71b88d074e319a82c31b48473465", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling min-max-heap v1.3.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling collected v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `MaybeUninit`, `borrow::Borrow`, and `cmp::Reverse`
[INFO] [stdout]   --> src/common.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  |     borrow::Borrow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 5  |     cmp::Reverse,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 6  |     collections::{hash_map, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     mem::{self, MaybeUninit},
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/add.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let sum = iter.into_iter().fold1(|lhs, rhs| lhs + rhs);
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/add.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs + rhs);
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/max.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let max = iter.into_iter().fold1(|lhs, rhs| lhs.max(rhs));
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/max.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs.max(rhs));
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/min.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let min = iter.into_iter().fold1(|lhs, rhs| lhs.min(rhs));
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/min.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs.min(rhs));
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/mul.rs:12:37
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let prod = iter.into_iter().fold1(|lhs, rhs| lhs * rhs);
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/mul.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs * rhs);
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "14c45af1acaf084c0c32ddff3d38d9dad17e71b88d074e319a82c31b48473465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14c45af1acaf084c0c32ddff3d38d9dad17e71b88d074e319a82c31b48473465", kill_on_drop: false }`
[INFO] [stdout] 14c45af1acaf084c0c32ddff3d38d9dad17e71b88d074e319a82c31b48473465
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acab9a3a245a2ec17431862e0f4ae64dae50c330048a13abd2b413f8374a90d6
[INFO] running `Command { std: "docker" "start" "-a" "acab9a3a245a2ec17431862e0f4ae64dae50c330048a13abd2b413f8374a90d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `MaybeUninit`, `borrow::Borrow`, and `cmp::Reverse`
[INFO] [stdout]   --> src/common.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  |     borrow::Borrow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 5  |     cmp::Reverse,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 6  |     collections::{hash_map, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     mem::{self, MaybeUninit},
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/add.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let sum = iter.into_iter().fold1(|lhs, rhs| lhs + rhs);
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/add.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs + rhs);
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/max.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let max = iter.into_iter().fold1(|lhs, rhs| lhs.max(rhs));
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/max.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs.max(rhs));
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/min.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let min = iter.into_iter().fold1(|lhs, rhs| lhs.min(rhs));
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/min.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs.min(rhs));
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/mul.rs:12:37
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let prod = iter.into_iter().fold1(|lhs, rhs| lhs * rhs);
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/mul.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs * rhs);
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling collected v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `MaybeUninit`, `borrow::Borrow`, and `cmp::Reverse`
[INFO] [stdout]   --> src/common.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  |     borrow::Borrow,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 5  |     cmp::Reverse,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 6  |     collections::{hash_map, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque},
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     mem::{self, MaybeUninit},
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/add.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let sum = iter.into_iter().fold1(|lhs, rhs| lhs + rhs);
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/add.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs + rhs);
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/max.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let max = iter.into_iter().fold1(|lhs, rhs| lhs.max(rhs));
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/max.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs.max(rhs));
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/min.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let min = iter.into_iter().fold1(|lhs, rhs| lhs.min(rhs));
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/min.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs.min(rhs));
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/mul.rs:12:37
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let prod = iter.into_iter().fold1(|lhs, rhs| lhs * rhs);
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold1`: Use `Iterator::reduce` instead
[INFO] [stdout]   --> src/mul.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .fold1(|lhs, rhs| lhs * rhs);
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "acab9a3a245a2ec17431862e0f4ae64dae50c330048a13abd2b413f8374a90d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acab9a3a245a2ec17431862e0f4ae64dae50c330048a13abd2b413f8374a90d6", kill_on_drop: false }`
[INFO] [stdout] acab9a3a245a2ec17431862e0f4ae64dae50c330048a13abd2b413f8374a90d6