[INFO] fetching crate kubernetes 0.2.0...
[INFO] testing kubernetes-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate kubernetes 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate kubernetes 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kubernetes 0.2.0
[INFO] finished tweaking crates.io crate kubernetes 0.2.0
[INFO] tweaked toml for crates.io crate kubernetes 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] c77394be7ae221f8c3d08d60e4d8f6815ce3650e53236b399c0e473e026085f6
[INFO] running `Command { std: "docker" "start" "-a" "c77394be7ae221f8c3d08d60e4d8f6815ce3650e53236b399c0e473e026085f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c77394be7ae221f8c3d08d60e4d8f6815ce3650e53236b399c0e473e026085f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c77394be7ae221f8c3d08d60e4d8f6815ce3650e53236b399c0e473e026085f6", kill_on_drop: false }`
[INFO] [stdout] c77394be7ae221f8c3d08d60e4d8f6815ce3650e53236b399c0e473e026085f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 464229976bb8886ab48bb76e919e736bb3e466b97477de0c73c647b0090765a4
[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" "464229976bb8886ab48bb76e919e736bb3e466b97477de0c73c647b0090765a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling kubernetes v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api/intstr.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl PartialEq<AsRef<str>> for IntOrString {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api/intstr.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn eq(&self, other: &AsRef<str>) -> bool {
[INFO] [stdout]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl<'a, T> IntoIterator for &'a List<T> {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn List<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<'a, T> IntoIterator for &'a mut List<T> {
[INFO] [stdout]    |                                      ^^^^^^^ help: use `dyn`: `dyn List<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/api/meta/v1.rs:299:42
[INFO] [stdout]     |
[INFO] [stdout] 299 |         static INIT: Once = ::std::sync::ONCE_INIT;
[INFO] [stdout]     |                                          ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.94s
[INFO] running `Command { std: "docker" "inspect" "464229976bb8886ab48bb76e919e736bb3e466b97477de0c73c647b0090765a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464229976bb8886ab48bb76e919e736bb3e466b97477de0c73c647b0090765a4", kill_on_drop: false }`
[INFO] [stdout] 464229976bb8886ab48bb76e919e736bb3e466b97477de0c73c647b0090765a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 75b90c5161e69aea4444c102bb75257a62ea5c052f41fd7511193d7531a111d9
[INFO] running `Command { std: "docker" "start" "-a" "75b90c5161e69aea4444c102bb75257a62ea5c052f41fd7511193d7531a111d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_test v1.0.130
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api/intstr.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl PartialEq<AsRef<str>> for IntOrString {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api/intstr.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn eq(&self, other: &AsRef<str>) -> bool {
[INFO] [stdout]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl<'a, T> IntoIterator for &'a List<T> {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn List<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<'a, T> IntoIterator for &'a mut List<T> {
[INFO] [stdout]    |                                      ^^^^^^^ help: use `dyn`: `dyn List<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/api/meta/v1.rs:299:42
[INFO] [stdout]     |
[INFO] [stdout] 299 |         static INIT: Once = ::std::sync::ONCE_INIT;
[INFO] [stdout]     |                                          ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kubernetes v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api/intstr.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl PartialEq<AsRef<str>> for IntOrString {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/api/intstr.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn eq(&self, other: &AsRef<str>) -> bool {
[INFO] [stdout]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl<'a, T> IntoIterator for &'a List<T> {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn List<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<'a, T> IntoIterator for &'a mut List<T> {
[INFO] [stdout]    |                                      ^^^^^^^ help: use `dyn`: `dyn List<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/api/meta/v1.rs:299:42
[INFO] [stdout]     |
[INFO] [stdout] 299 |         static INIT: Once = ::std::sync::ONCE_INIT;
[INFO] [stdout]     |                                          ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kubernetes`; 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name kubernetes src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=85485575192c9645 -C extra-filename=-85485575192c9645 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-6ec135e29475092e.rlib --extern dirs=/opt/rustwide/target/debug/deps/libdirs-d4535653700f776f.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-020663e0d5b03457.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-1e2976b395eeb9c1.rlib --extern hyper=/opt/rustwide/target/debug/deps/libhyper-afd78a5004be1179.rlib --extern hyper_tls=/opt/rustwide/target/debug/deps/libhyper_tls-06a83d546e28eaf6.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-7914ddd45155fdc8.rlib --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-3ae07916d28af8bf.rlib --extern openssl=/opt/rustwide/target/debug/deps/libopenssl-240d54664d430e18.rlib --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-1423ba4d7797cca2.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-e1e7584dcba0a5cc.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-b37a834da9c78a57.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-281168d0e6558308.rlib --extern serde_test=/opt/rustwide/target/debug/deps/libserde_test-32a839dbc1909ae1.rlib --extern serde_urlencoded=/opt/rustwide/target/debug/deps/libserde_urlencoded-cd0780d2972d5e95.rlib --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-0836e54cba7029aa.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-17c4933cdcd0b000.rlib --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-61125350023e877e.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-2e78d1b0e2702257.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "75b90c5161e69aea4444c102bb75257a62ea5c052f41fd7511193d7531a111d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b90c5161e69aea4444c102bb75257a62ea5c052f41fd7511193d7531a111d9", kill_on_drop: false }`
[INFO] [stdout] 75b90c5161e69aea4444c102bb75257a62ea5c052f41fd7511193d7531a111d9