[INFO] fetching crate maybe-owned 0.3.4...
[INFO] testing maybe-owned-0.3.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate maybe-owned 0.3.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate maybe-owned 0.3.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maybe-owned 0.3.4
[INFO] finished tweaking crates.io crate maybe-owned 0.3.4
[INFO] tweaked toml for crates.io crate maybe-owned 0.3.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate maybe-owned 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cd4a19e9da8cc612002d50581e4d96519136814f1ccd60ff8f587c4e95eff47
[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" "6cd4a19e9da8cc612002d50581e4d96519136814f1ccd60ff8f587c4e95eff47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cd4a19e9da8cc612002d50581e4d96519136814f1ccd60ff8f587c4e95eff47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd4a19e9da8cc612002d50581e4d96519136814f1ccd60ff8f587c4e95eff47", kill_on_drop: false }`
[INFO] [stdout] 6cd4a19e9da8cc612002d50581e4d96519136814f1ccd60ff8f587c4e95eff47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abc78f03d730f0ef6bc81a261fae2ebade784a295fcd81c927b73e23818eb61f
[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" "abc78f03d730f0ef6bc81a261fae2ebade784a295fcd81c927b73e23818eb61f", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-owned v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "abc78f03d730f0ef6bc81a261fae2ebade784a295fcd81c927b73e23818eb61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abc78f03d730f0ef6bc81a261fae2ebade784a295fcd81c927b73e23818eb61f", kill_on_drop: false }`
[INFO] [stdout] abc78f03d730f0ef6bc81a261fae2ebade784a295fcd81c927b73e23818eb61f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ee4186548bc953ae41edc82efd3c4b3bb67a28d9432483f08b4f49047f59b14
[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" "1ee4186548bc953ae41edc82efd3c4b3bb67a28d9432483f08b4f49047f59b14", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling maybe-owned v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:630:17
[INFO] [stdout]     |
[INFO] [stdout] 630 |         let _ = AsRef::<u8>::borrow(&v);
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: use `dyn`: `<dyn AsRef::<u8>>`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:633:17
[INFO] [stdout]     |
[INFO] [stdout] 633 |         let _ = AsRef::<u8>::borrow(&v);
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: use `dyn`: `<dyn AsRef::<u8>>`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:647:17
[INFO] [stdout]     |
[INFO] [stdout] 647 |         let _ = AsMut::<u8>::borrow_mut(&mut v);
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: use `dyn`: `<dyn AsMut::<u8>>`
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 23.06s
[INFO] running `Command { std: "docker" "inspect" "1ee4186548bc953ae41edc82efd3c4b3bb67a28d9432483f08b4f49047f59b14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ee4186548bc953ae41edc82efd3c4b3bb67a28d9432483f08b4f49047f59b14", kill_on_drop: false }`
[INFO] [stdout] 1ee4186548bc953ae41edc82efd3c4b3bb67a28d9432483f08b4f49047f59b14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b526edc67608c960ece52d8c3e70d7f435b2f01461951ae156a2d68ef85ba130
[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" "b526edc67608c960ece52d8c3e70d7f435b2f01461951ae156a2d68ef85ba130", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:630:17
[INFO] [stderr]     |
[INFO] [stderr] 630 |         let _ = AsRef::<u8>::borrow(&v);
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: use `dyn`: `<dyn AsRef::<u8>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:633:17
[INFO] [stderr]     |
[INFO] [stderr] 633 |         let _ = AsRef::<u8>::borrow(&v);
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: use `dyn`: `<dyn AsRef::<u8>>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:647:17
[INFO] [stderr]     |
[INFO] [stderr] 647 |         let _ = AsMut::<u8>::borrow_mut(&mut v);
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: use `dyn`: `<dyn AsMut::<u8>>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `maybe-owned` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maybe_owned-99db9690a65a31c4)
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test tests::as_ref ... ok
[INFO] [stdout] test tests::borrow ... ok
[INFO] [stdout] test tests::clone_owned ... ok
[INFO] [stdout] test tests::clone_borrow ... ok
[INFO] [stdout] test tests::has_default ... ok
[INFO] [stdout] test tests::has_deref ... ok
[INFO] [stdout] test tests::has_display ... ok
[INFO] [stdout] test tests::has_eq ... ok
[INFO] [stdout] test tests::has_deref_mut ... ok
[INFO] [stdout] test tests::has_ord ... ok
[INFO] [stdout] test tests::has_partial_ord ... ok
[INFO] [stdout] test tests::has_partial_eq ... ok
[INFO] [stdout] test tests::into_cow ... ok
[INFO] [stdout] test tests::into_inner ... ok
[INFO] [stdout] test tests::has_hash ... ok
[INFO] [stdout] test tests::into_with_owned ... ok
[INFO] [stdout] test tests::is_owned ... ok
[INFO] [stdout] test tests::make_owned ... ok
[INFO] [stdout] test tests::reborrow_mut ... ok
[INFO] [stdout] test tests::into_with_borrow ... ok
[INFO] [stdout] test tests::to_mut ... ok
[INFO] [stdout] test transitive_impl::test::not_and_neg_are_impl ... ok
[INFO] [stdout] test transitive_impl::test::not_and_neg_work_for_think_test_type ... ok
[INFO] [stdout] test transitive_impl::test::not_and_neg_are_impl_mut ... ok
[INFO] [stdout] test transitive_impl::test::op_assign_impls_exist ... ok
[INFO] [stdout] test transitive_impl::test::op_assign_impls_exist_mut ... ok
[INFO] [stdout] test tests::has_borrow_mut ... ok
[INFO] [stdout] test tests::has_borrow ... ok
[INFO] [stdout] test transitive_impl::test::op_impls_exist ... ok
[INFO] [stdout] test transitive_impl::test::op_impls_exist_for_mut ... ok
[INFO] [stdout] test tests::has_as_ref ... ok
[INFO] [stdout] test tests::from_cow ... ok
[INFO] [stdout] test tests::has_clone ... ok
[INFO] [stdout] test tests::from_str ... ok
[INFO] [stdout] test tests::has_as_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests maybe-owned
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - MaybeOwnedMut::make_owned (line 337) ... ok
[INFO] [stdout] test src/lib.rs - MaybeOwned (line 69) ... ok
[INFO] [stdout] test src/lib.rs - MaybeOwned::to_mut (line 386) ... ok
[INFO] [stdout] test src/lib.rs - MaybeOwned::make_owned (line 336) ... ok
[INFO] [stdout] test src/lib.rs - MaybeOwned (line 55) ... ok
[INFO] [stdout] test src/lib.rs - MaybeOwned (line 84) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.82s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b526edc67608c960ece52d8c3e70d7f435b2f01461951ae156a2d68ef85ba130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b526edc67608c960ece52d8c3e70d7f435b2f01461951ae156a2d68ef85ba130", kill_on_drop: false }`
[INFO] [stdout] b526edc67608c960ece52d8c3e70d7f435b2f01461951ae156a2d68ef85ba130