[INFO] fetching crate int-range-ext 0.1.0...
[INFO] testing int-range-ext-0.1.0 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate int-range-ext 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate int-range-ext 0.1.0
[INFO] finished tweaking crates.io crate int-range-ext 0.1.0
[INFO] tweaked toml for crates.io crate int-range-ext 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate int-range-ext 0.1.0 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc51812ee6830fad48aedad36e40d4b6c3f4b0f288a42608d4b6bc7e1174b57b
[INFO] running `Command { std: "docker" "start" "-a" "dc51812ee6830fad48aedad36e40d4b6c3f4b0f288a42608d4b6bc7e1174b57b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc51812ee6830fad48aedad36e40d4b6c3f4b0f288a42608d4b6bc7e1174b57b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc51812ee6830fad48aedad36e40d4b6c3f4b0f288a42608d4b6bc7e1174b57b", kill_on_drop: false }`
[INFO] [stdout] dc51812ee6830fad48aedad36e40d4b6c3f4b0f288a42608d4b6bc7e1174b57b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 528fcc0ab775ad99fdf5b5928a82171672260b16b92665b39b8a976a161e0d32
[INFO] running `Command { std: "docker" "start" "-a" "528fcc0ab775ad99fdf5b5928a82171672260b16b92665b39b8a976a161e0d32", kill_on_drop: false }`
[INFO] [stderr]    Compiling int-range-ext v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         if self.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:375:17
[INFO] [stdout]     |
[INFO] [stdout] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:375:37
[INFO] [stdout]     |
[INFO] [stdout] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "528fcc0ab775ad99fdf5b5928a82171672260b16b92665b39b8a976a161e0d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528fcc0ab775ad99fdf5b5928a82171672260b16b92665b39b8a976a161e0d32", kill_on_drop: false }`
[INFO] [stdout] 528fcc0ab775ad99fdf5b5928a82171672260b16b92665b39b8a976a161e0d32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec4e9dcc2ef2c3a057a44e268c9314ee4f81b30f4e0e3d15c5f3914ab8590817
[INFO] running `Command { std: "docker" "start" "-a" "ec4e9dcc2ef2c3a057a44e268c9314ee4f81b30f4e0e3d15c5f3914ab8590817", kill_on_drop: false }`
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         if self.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:375:17
[INFO] [stdout]     |
[INFO] [stdout] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:375:37
[INFO] [stdout]     |
[INFO] [stdout] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling int-range-ext v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         if self.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:193:17
[INFO] [stdout]     |
[INFO] [stdout] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:375:17
[INFO] [stdout]     |
[INFO] [stdout] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:375:37
[INFO] [stdout]     |
[INFO] [stdout] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:477:32
[INFO] [stdout]     |
[INFO] [stdout] 477 |         assert_eq!((..u8::MIN).is_empty(), true);
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:478:32
[INFO] [stdout]     |
[INFO] [stdout] 478 |         assert_eq!((u8::MAX..).is_empty(), false);
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stdout]     |
[INFO] [stdout]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "ec4e9dcc2ef2c3a057a44e268c9314ee4f81b30f4e0e3d15c5f3914ab8590817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4e9dcc2ef2c3a057a44e268c9314ee4f81b30f4e0e3d15c5f3914ab8590817", kill_on_drop: false }`
[INFO] [stdout] ec4e9dcc2ef2c3a057a44e268c9314ee4f81b30f4e0e3d15c5f3914ab8590817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5970185d75531ed2a984d4969ddadd01aad535b3e19779118b8b399a7d665316
[INFO] running `Command { std: "docker" "start" "-a" "5970185d75531ed2a984d4969ddadd01aad535b3e19779118b8b399a7d665316", kill_on_drop: false }`
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |         if self.is_empty() {
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:193:37
[INFO] [stderr]     |
[INFO] [stderr] 193 |         if self.is_empty() || other.is_empty() {
[INFO] [stderr]     |                                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:375:17
[INFO] [stderr]     |
[INFO] [stderr] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:375:37
[INFO] [stderr]     |
[INFO] [stderr] 375 |         if self.is_empty() || other.is_empty() {
[INFO] [stderr]     |                                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] help: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `int-range-ext` (lib) generated 5 warnings
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:477:32
[INFO] [stderr]     |
[INFO] [stderr] 477 |         assert_eq!((..u8::MIN).is_empty(), true);
[INFO] [stderr]     |                                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:478:32
[INFO] [stderr]     |
[INFO] [stderr] 478 |         assert_eq!((u8::MAX..).is_empty(), false);
[INFO] [stderr]     |                                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `IntRangeExt::is_empty(...)` to keep using the current method
[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: add `#![feature(range_bounds_is_empty)]` to the crate attributes to enable `std::ops::RangeBounds::is_empty`
[INFO] [stderr]     |
[INFO] [stderr]   3 + #![feature(range_bounds_is_empty)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `int-range-ext` (lib test) generated 7 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/int_range_ext-020369f599648f9d)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::contains_subrange ... ok
[INFO] [stdout] test tests::equal ... ok
[INFO] [stdout] test tests::intersect ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test tests::sub ... ok
[INFO] [stdout] test tests::to_inclusive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests int_range_ext
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - IntRangeExt::to_inclusive (line 64) ... ok
[INFO] [stdout] test src/lib.rs - IntRangeExt::substract (line 92) ... ok
[INFO] [stdout] test src/lib.rs - IntRangeExt::is_empty (line 56) ... ok
[INFO] [stdout] test src/lib.rs - IntRangeExt::intersect (line 107) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - IntRangeExt::equal (line 83) ... ok
[INFO] [stdout] test src/lib.rs - IntRangeExt::contains_subrange (line 74) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5970185d75531ed2a984d4969ddadd01aad535b3e19779118b8b399a7d665316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5970185d75531ed2a984d4969ddadd01aad535b3e19779118b8b399a7d665316", kill_on_drop: false }`
[INFO] [stdout] 5970185d75531ed2a984d4969ddadd01aad535b3e19779118b8b399a7d665316
