[INFO] fetching crate d2_iterators 0.1.0...
[INFO] testing d2_iterators-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate d2_iterators 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate d2_iterators 0.1.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate d2_iterators 0.1.0
[INFO] finished tweaking crates.io crate d2_iterators 0.1.0
[INFO] tweaked toml for crates.io crate d2_iterators 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6575ce938667cf6a0e093392fb503c37dc72b1e8fcf95fd77b9004610850db2f
[INFO] running `Command { std: "docker" "start" "-a" "6575ce938667cf6a0e093392fb503c37dc72b1e8fcf95fd77b9004610850db2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6575ce938667cf6a0e093392fb503c37dc72b1e8fcf95fd77b9004610850db2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6575ce938667cf6a0e093392fb503c37dc72b1e8fcf95fd77b9004610850db2f", kill_on_drop: false }`
[INFO] [stdout] 6575ce938667cf6a0e093392fb503c37dc72b1e8fcf95fd77b9004610850db2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90af259d3a224814c1abe48fd0480ac3eb1aab6eb84b57fb29546520c7128237
[INFO] running `Command { std: "docker" "start" "-a" "90af259d3a224814c1abe48fd0480ac3eb1aab6eb84b57fb29546520c7128237", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling d2_iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "90af259d3a224814c1abe48fd0480ac3eb1aab6eb84b57fb29546520c7128237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90af259d3a224814c1abe48fd0480ac3eb1aab6eb84b57fb29546520c7128237", kill_on_drop: false }`
[INFO] [stdout] 90af259d3a224814c1abe48fd0480ac3eb1aab6eb84b57fb29546520c7128237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1152f636a155b8be8877949a7d49cc782010236b26c9b99549b421574e40bfaf
[INFO] running `Command { std: "docker" "start" "-a" "1152f636a155b8be8877949a7d49cc782010236b26c9b99549b421574e40bfaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling d2_iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/combi.rs:49:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let v: Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "1152f636a155b8be8877949a7d49cc782010236b26c9b99549b421574e40bfaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1152f636a155b8be8877949a7d49cc782010236b26c9b99549b421574e40bfaf", kill_on_drop: false }`
[INFO] [stdout] 1152f636a155b8be8877949a7d49cc782010236b26c9b99549b421574e40bfaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66b45e7e741b18a4de2cd0b8f6bfb3f313e43ba62f210a8d80099cf0d316f498
[INFO] running `Command { std: "docker" "start" "-a" "66b45e7e741b18a4de2cd0b8f6bfb3f313e43ba62f210a8d80099cf0d316f498", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout] running 8 tests
[INFO] [stderr]   --> src/combi.rs:49:41
[INFO] [stdout] test combi::test_skip::test_skip_half ... ok
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let v: Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stderr]    |                                         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse`
[INFO] [stderr] 
[INFO] [stderr] warning: `d2_iterators` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/d2_iterators-20ca3e7c2c7e7d1e)
[INFO] [stdout] test combi::test_skip::test_step_by ... ok
[INFO] [stdout] test into::test_into::test_into_iter ... ok
[INFO] [stdout] test gen_range::tests::gen_test1 ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test gen_range::tests::filter ... ok
[INFO] [stdout] test combi::test_skip::test_intersperse ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/d2_printout-bf1fab9c3e891028)
[INFO] [stdout] test combi::test_skip::test_interleave ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests d2_iterators
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66b45e7e741b18a4de2cd0b8f6bfb3f313e43ba62f210a8d80099cf0d316f498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b45e7e741b18a4de2cd0b8f6bfb3f313e43ba62f210a8d80099cf0d316f498", kill_on_drop: false }`
[INFO] [stdout] 66b45e7e741b18a4de2cd0b8f6bfb3f313e43ba62f210a8d80099cf0d316f498