[INFO] fetching crate jp_graph 0.1.0...
[INFO] testing jp_graph-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate jp_graph 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate jp_graph 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jp_graph 0.1.0
[INFO] finished tweaking crates.io crate jp_graph 0.1.0
[INFO] tweaked toml for crates.io crate jp_graph 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proptest v0.8.7
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c82aa63a5ef2d2efafc3d2d91d7c7b6a92f6f610a424fd3f6e8063ed5868861
[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" "2c82aa63a5ef2d2efafc3d2d91d7c7b6a92f6f610a424fd3f6e8063ed5868861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c82aa63a5ef2d2efafc3d2d91d7c7b6a92f6f610a424fd3f6e8063ed5868861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c82aa63a5ef2d2efafc3d2d91d7c7b6a92f6f610a424fd3f6e8063ed5868861", kill_on_drop: false }`
[INFO] [stdout] 2c82aa63a5ef2d2efafc3d2d91d7c7b6a92f6f610a424fd3f6e8063ed5868861
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--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] d9e97a9f2c2d3b346a88bde0ea49a928e0195400afb3113b6639624dcdd1b122
[INFO] running `Command { std: "docker" "start" "-a" "d9e97a9f2c2d3b346a88bde0ea49a928e0195400afb3113b6639624dcdd1b122", kill_on_drop: false }`
[INFO] [stderr]    Compiling jp_graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "d9e97a9f2c2d3b346a88bde0ea49a928e0195400afb3113b6639624dcdd1b122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e97a9f2c2d3b346a88bde0ea49a928e0195400afb3113b6639624dcdd1b122", kill_on_drop: false }`
[INFO] [stdout] d9e97a9f2c2d3b346a88bde0ea49a928e0195400afb3113b6639624dcdd1b122
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 838e0f751128c35fc5d412449fdff39dc20777dcbc1798ca34e7cfc2e6a405a3
[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" "838e0f751128c35fc5d412449fdff39dc20777dcbc1798ca34e7cfc2e6a405a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling proptest v0.8.7
[INFO] [stderr]    Compiling jp_graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/tarjan.rs:129:22
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     .into_iter()
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     tarjan_test!(triangle, "0-1, 1-2, 2-0", [[0, 1, 2]]);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout]     = note: this warning originates in the macro `tarjan_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     .iter()
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 let expected: Vec<_> = IntoIterator::into_iter($expected
[INFO] [stdout] 129 |                     .into_iter())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/tarjan.rs:129:22
[INFO] [stdout]     |
[INFO] [stdout] 129 |                       .into_iter()
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 | /     tarjan_test!(
[INFO] [stdout] 139 | |         two_triangles,
[INFO] [stdout] 140 | |         "0-1, 1-2, 2-0, 2-3, 3-4, 4-5, 5-3",
[INFO] [stdout] 141 | |         [[0, 1, 2], [3, 4, 5]]
[INFO] [stdout] 142 | |     );
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout]     = note: this warning originates in the macro `tarjan_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     .iter()
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 let expected: Vec<_> = IntoIterator::into_iter($expected
[INFO] [stdout] 129 |                     .into_iter())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/tarjan.rs:129:22
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     .into_iter()
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     tarjan_test!(diamond, "0-1, 0-2, 1-3, 2-3", [[0], [2], [1], [3]]);
[INFO] [stdout]     |     ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout]     = note: this warning originates in the macro `tarjan_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     .iter()
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 let expected: Vec<_> = IntoIterator::into_iter($expected
[INFO] [stdout] 129 |                     .into_iter())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.83s
[INFO] running `Command { std: "docker" "inspect" "838e0f751128c35fc5d412449fdff39dc20777dcbc1798ca34e7cfc2e6a405a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "838e0f751128c35fc5d412449fdff39dc20777dcbc1798ca34e7cfc2e6a405a3", kill_on_drop: false }`
[INFO] [stdout] 838e0f751128c35fc5d412449fdff39dc20777dcbc1798ca34e7cfc2e6a405a3
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", 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] 5954e198d60398b10360091bed6c60e65f1b6860c1f6f545c90e5e2ac68edd82
[INFO] running `Command { std: "docker" "start" "-a" "5954e198d60398b10360091bed6c60e65f1b6860c1f6f545c90e5e2ac68edd82", kill_on_drop: false }`
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]    --> src/tarjan.rs:129:22
[INFO] [stderr]     |
[INFO] [stderr] 129 |                     .into_iter()
[INFO] [stderr]     |                      ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     tarjan_test!(triangle, "0-1, 1-2, 2-0", [[0, 1, 2]]);
[INFO] [stderr]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this changes meaning in Rust 2021
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in the macro `tarjan_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]     |
[INFO] [stderr] 129 |                     .iter()
[INFO] [stderr]     |                      ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let expected: Vec<_> = IntoIterator::into_iter($expected
[INFO] [stderr] 129 |                     .into_iter())
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]    --> src/tarjan.rs:129:22
[INFO] [stderr]     |
[INFO] [stderr] 129 |                       .into_iter()
[INFO] [stderr]     |                        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 138 | /     tarjan_test!(
[INFO] [stderr] 139 | |         two_triangles,
[INFO] [stderr] 140 | |         "0-1, 1-2, 2-0, 2-3, 3-4, 4-5, 5-3",
[INFO] [stderr] 141 | |         [[0, 1, 2], [3, 4, 5]]
[INFO] [stderr] 142 | |     );
[INFO] [stderr]     | |______- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this changes meaning in Rust 2021
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in the macro `tarjan_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]     |
[INFO] [stderr] 129 |                     .iter()
[INFO] [stderr]     |                      ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let expected: Vec<_> = IntoIterator::into_iter($expected
[INFO] [stderr] 129 |                     .into_iter())
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]    --> src/tarjan.rs:129:22
[INFO] [stderr]     |
[INFO] [stderr] 129 |                     .into_iter()
[INFO] [stderr]     |                      ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 143 |     tarjan_test!(diamond, "0-1, 0-2, 1-3, 2-3", [[0], [2], [1], [3]]);
[INFO] [stderr]     |     ------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this changes meaning in Rust 2021
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in the macro `tarjan_test` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]     |
[INFO] [stderr] 129 |                     .iter()
[INFO] [stderr]     |                      ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let expected: Vec<_> = IntoIterator::into_iter($expected
[INFO] [stderr] 129 |                     .into_iter())
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `jp_graph` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jp_graph-0406f719af3d6f9e)
[INFO] [stdout] running 20 tests
[INFO] [stdout] test tests::linear_order_cycle ... ok
[INFO] [stdout] test tests::top_sort_chain ... ok
[INFO] [stdout] test tarjan::tests::diamond ... ok
[INFO] [stdout] test tests::linear_order_chain_with_extra2 ... ok
[INFO] [stdout] test tests::linear_order_chain_with_extra ... ok
[INFO] [stdout] test tarjan::tests::two_triangles ... ok
[INFO] [stdout] test tests::top_sort_tree ... ok
[INFO] [stdout] test tests::top_sort_cycle ... ok
[INFO] [stdout] test tarjan::tests::triangle ... ok
[INFO] [stdout] test dfs::tests::repeat_visit ... ok
[INFO] [stdout] test tests::linear_order_chain ... ok
[INFO] [stdout] test tests::linear_order_diamond ... ok
[INFO] [stdout] test dfs::tests::visit_order ... ok
[INFO] [stdout] test tests::linear_order_tree ... ok
[INFO] [stdout] test tests::top_sort_proptest ... ok
[INFO] [stdout] test tests::doubled_proptest ... ok
[INFO] [stdout] test tests::weak_components_proptest ... ok
[INFO] [stdout] test tarjan::tests::tarjan_dag_proptest ... ok
[INFO] [stdout] test tarjan::tests::tarjan_scc_dag ... ok
[INFO] [stdout] test tarjan::tests::tarjan_graph_proptest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jp_graph
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5954e198d60398b10360091bed6c60e65f1b6860c1f6f545c90e5e2ac68edd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5954e198d60398b10360091bed6c60e65f1b6860c1f6f545c90e5e2ac68edd82", kill_on_drop: false }`
[INFO] [stdout] 5954e198d60398b10360091bed6c60e65f1b6860c1f6f545c90e5e2ac68edd82
