[INFO] fetching crate kcpclient 0.1.1...
[INFO] checking kcpclient-0.1.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate kcpclient 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate kcpclient 0.1.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kcpclient 0.1.1
[INFO] finished tweaking crates.io crate kcpclient 0.1.1
[INFO] tweaked toml for crates.io crate kcpclient 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64b85da10e63301301aa9141fb88845c720f047c2945a56edf8f7d2c485102db
[INFO] running `Command { std: "docker" "start" "-a" "64b85da10e63301301aa9141fb88845c720f047c2945a56edf8f7d2c485102db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b85da10e63301301aa9141fb88845c720f047c2945a56edf8f7d2c485102db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b85da10e63301301aa9141fb88845c720f047c2945a56edf8f7d2c485102db", kill_on_drop: false }`
[INFO] [stdout] 64b85da10e63301301aa9141fb88845c720f047c2945a56edf8f7d2c485102db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 165fa9a38e850e787203585d851cab8bd147591564aa60a35e8548c155104fca
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "165fa9a38e850e787203585d851cab8bd147591564aa60a35e8548c155104fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking kcpclient v0.1.1 (/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/kcp/kcp.rs:594:19
[INFO] [stdout]     |
[INFO] [stdout] 594 |         while buf.remaining() >= KCP_OVERHEAD as usize {
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:617:20
[INFO] [stdout]     |
[INFO] [stdout] 617 |             if buf.remaining() < len as usize {
[INFO] [stdout]     |                    ^^^^^^^^^
[INFO] [stdout]     |
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:622:25
[INFO] [stdout]     |
[INFO] [stdout] 622 |                     buf.remaining()
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:624:67
[INFO] [stdout]     |
[INFO] [stdout] 624 |                 return Err(Error::InvalidSegmentDataSize(len, buf.remaining()));
[INFO] [stdout]     |                                                                   ^^^^^^^^^
[INFO] [stdout]     |
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:594:19
[INFO] [stdout]     |
[INFO] [stdout] 594 |         while buf.remaining() >= KCP_OVERHEAD as usize {
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:617:20
[INFO] [stdout]     |
[INFO] [stdout] 617 |             if buf.remaining() < len as usize {
[INFO] [stdout]     |                    ^^^^^^^^^
[INFO] [stdout]     |
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:622:25
[INFO] [stdout]     |
[INFO] [stdout] 622 |                     buf.remaining()
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/kcp/kcp.rs:624:67
[INFO] [stdout]     |
[INFO] [stdout] 624 |                 return Err(Error::InvalidSegmentDataSize(len, buf.remaining()));
[INFO] [stdout]     |                                                                   ^^^^^^^^^
[INFO] [stdout]     |
[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 `remaining(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(cursor_remaining)]` to the crate attributes to enable `std::io::Cursor::<T>::remaining`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `Command { std: "docker" "inspect" "165fa9a38e850e787203585d851cab8bd147591564aa60a35e8548c155104fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "165fa9a38e850e787203585d851cab8bd147591564aa60a35e8548c155104fca", kill_on_drop: false }`
[INFO] [stdout] 165fa9a38e850e787203585d851cab8bd147591564aa60a35e8548c155104fca