[INFO] fetching crate avl 0.6.1...
[INFO] testing avl-0.6.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate avl 0.6.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate avl 0.6.1 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 avl 0.6.1
[INFO] finished tweaking crates.io crate avl 0.6.1
[INFO] tweaked toml for crates.io crate avl 0.6.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] daf72e53ac4af60e5f76c95c6be7b79c9133e403babeb22fbed96afa6ad5508a
[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" "daf72e53ac4af60e5f76c95c6be7b79c9133e403babeb22fbed96afa6ad5508a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daf72e53ac4af60e5f76c95c6be7b79c9133e403babeb22fbed96afa6ad5508a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf72e53ac4af60e5f76c95c6be7b79c9133e403babeb22fbed96afa6ad5508a", kill_on_drop: false }`
[INFO] [stdout] daf72e53ac4af60e5f76c95c6be7b79c9133e403babeb22fbed96afa6ad5508a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 2e9ea9c20c02b421835938d4d0e5438a20f41960887a6e21eb0562c3e3b0cd8f
[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" "2e9ea9c20c02b421835938d4d0e5438a20f41960887a6e21eb0562c3e3b0cd8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling avl v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this attribute can only be applied to a `use` item
[INFO] [stdout]   --> src/lib.rs:9:7
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[doc(inline)]
[INFO] [stdout]    |       ^^^^^^ only applicable on `use` items
[INFO] [stdout] 10 | pub mod map;
[INFO] [stdout]    | ------------ not a `use` item
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#docno_inlinedocinline for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e9ea9c20c02b421835938d4d0e5438a20f41960887a6e21eb0562c3e3b0cd8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e9ea9c20c02b421835938d4d0e5438a20f41960887a6e21eb0562c3e3b0cd8f", kill_on_drop: false }`
[INFO] [stdout] 2e9ea9c20c02b421835938d4d0e5438a20f41960887a6e21eb0562c3e3b0cd8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] bcc520c144deb8b85f0b9d53ceb1f61d0e33c67ad65c5783b6ee59b4c06f4bc2
[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" "bcc520c144deb8b85f0b9d53ceb1f61d0e33c67ad65c5783b6ee59b4c06f4bc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stdout] warning: this attribute can only be applied to a `use` item
[INFO] [stdout]   --> src/lib.rs:9:7
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[doc(inline)]
[INFO] [stdout]    |       ^^^^^^ only applicable on `use` items
[INFO] [stdout] 10 | pub mod map;
[INFO] [stdout]    | ------------ not a `use` item
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#docno_inlinedocinline for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling avl v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this attribute can only be applied to a `use` item
[INFO] [stdout]   --> src/lib.rs:9:7
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[doc(inline)]
[INFO] [stdout]    |       ^^^^^^ only applicable on `use` items
[INFO] [stdout] 10 | pub mod map;
[INFO] [stdout]    | ------------ not a `use` item
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#docno_inlinedocinline for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.21s
[INFO] running `Command { std: "docker" "inspect" "bcc520c144deb8b85f0b9d53ceb1f61d0e33c67ad65c5783b6ee59b4c06f4bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcc520c144deb8b85f0b9d53ceb1f61d0e33c67ad65c5783b6ee59b4c06f4bc2", kill_on_drop: false }`
[INFO] [stdout] bcc520c144deb8b85f0b9d53ceb1f61d0e33c67ad65c5783b6ee59b4c06f4bc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] f7bf5350e5bab88e4da9d18882763086dd822c3ca61049d0ca1c90f2393bf4e0
[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" "f7bf5350e5bab88e4da9d18882763086dd822c3ca61049d0ca1c90f2393bf4e0", kill_on_drop: false }`
[INFO] [stderr] warning: this attribute can only be applied to a `use` item
[INFO] [stderr]   --> src/lib.rs:9:7
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[doc(inline)]
[INFO] [stderr]    |       ^^^^^^ only applicable on `use` items
[INFO] [stderr] 10 | pub mod map;
[INFO] [stderr]    | ------------ not a `use` item
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stderr]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#docno_inlinedocinline for more information
[INFO] [stderr] 
[INFO] [stderr] warning: `avl` (lib) generated 1 warning
[INFO] [stderr] warning: `avl` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/avl-8c2f2642c5d9dd80)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test tests::test_new ... ok
[INFO] [stdout] test tests::test_append ... ok
[INFO] [stdout] test tests::test_set_iter ... ok
[INFO] [stdout] test tests::test_clear ... ok
[INFO] [stdout] test tests::test_map_entry ... ok
[INFO] [stdout] test tests::test_map_range_iter ... ok
[INFO] [stdout] test tests::test_rebalance ... ok
[INFO] [stdout] test tests::test_get ... ok
[INFO] [stdout] test tests::test_split ... ok
[INFO] [stdout] test tests::test_map_iter ... ok
[INFO] [stdout] test tests::test_set ... ok
[INFO] [stdout] test tests::test_set_ops ... ok
[INFO] [stdout] test tests::test_index_panic - should panic ... ok
[INFO] [stdout] test tests::test_remove ... ok
[INFO] [stdout] test tests::test_insert_shuffled_range ... ok
[INFO] [stdout] test tests::test_insert_sorted_range ... ok
[INFO] [stdout] test tests::test_insert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests avl
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/map.rs - map::AvlTreeMap (line 19) ... ok
[INFO] [stdout] test src/map/set.rs - map::set::AvlTreeSet (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7bf5350e5bab88e4da9d18882763086dd822c3ca61049d0ca1c90f2393bf4e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7bf5350e5bab88e4da9d18882763086dd822c3ca61049d0ca1c90f2393bf4e0", kill_on_drop: false }`
[INFO] [stdout] f7bf5350e5bab88e4da9d18882763086dd822c3ca61049d0ca1c90f2393bf4e0