[INFO] cloning repository https://github.com/widmogrod/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/widmogrod/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwidmogrod%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwidmogrod%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55d83ce6e3003ca60ae90b8989a771a7f2ce0770
[INFO] testing widmogrod/rust-playground against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwidmogrod%2Frust-playground" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/widmogrod/rust-playground on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/widmogrod/rust-playground
[INFO] finished tweaking git repo https://github.com/widmogrod/rust-playground
[INFO] tweaked toml for git repo https://github.com/widmogrod/rust-playground written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/widmogrod/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c757d141ca0e51af74c097889405e7a7fc8bca3d23437625b92182115b9574bb
[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" "c757d141ca0e51af74c097889405e7a7fc8bca3d23437625b92182115b9574bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c757d141ca0e51af74c097889405e7a7fc8bca3d23437625b92182115b9574bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c757d141ca0e51af74c097889405e7a7fc8bca3d23437625b92182115b9574bb", kill_on_drop: false }`
[INFO] [stdout] c757d141ca0e51af74c097889405e7a7fc8bca3d23437625b92182115b9574bb
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51b4a461c1ba099f8e7db2adee17eb5bd2ae824e27f5a5d7039a20eb3f464dfb
[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" "51b4a461c1ba099f8e7db2adee17eb5bd2ae824e27f5a5d7039a20eb3f464dfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `EmptyCart`
[INFO] [stdout]   --> src/ply/ddd.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     EmptyCart,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ActiveCart`
[INFO] [stdout]   --> src/ply/ddd.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ActiveCart(UnpayedItems),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PaidCart`
[INFO] [stdout]   --> src/ply/ddd.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     PaidCart(PayedItems, PaymentMethod)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `new_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn new_cart()  -> ShoppingCart {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `items_in_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn items_in_cart(c: ShoppingCart)  -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_to_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn add_to_cart(c: ShoppingCart, i: Item) -> ShoppingCart {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "51b4a461c1ba099f8e7db2adee17eb5bd2ae824e27f5a5d7039a20eb3f464dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b4a461c1ba099f8e7db2adee17eb5bd2ae824e27f5a5d7039a20eb3f464dfb", kill_on_drop: false }`
[INFO] [stdout] 51b4a461c1ba099f8e7db2adee17eb5bd2ae824e27f5a5d7039a20eb3f464dfb
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] b15751afd2b0418cae48c7b2855d119435e4da640d79cd15a0a839bea86861eb
[INFO] running `Command { std: "docker" "start" "-a" "b15751afd2b0418cae48c7b2855d119435e4da640d79cd15a0a839bea86861eb", kill_on_drop: false }`
[INFO] [stdout] warning: variant is never constructed: `EmptyCart`
[INFO] [stdout]   --> src/ply/ddd.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     EmptyCart,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `ActiveCart`
[INFO] [stdout]   --> src/ply/ddd.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ActiveCart(UnpayedItems),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PaidCart`
[INFO] [stdout]   --> src/ply/ddd.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     PaidCart(PayedItems, PaymentMethod)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `new_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn new_cart()  -> ShoppingCart {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `items_in_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn items_in_cart(c: ShoppingCart)  -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_to_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn add_to_cart(c: ShoppingCart, i: Item) -> ShoppingCart {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PaidCart`
[INFO] [stdout]   --> src/ply/ddd.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     PaidCart(PayedItems, PaymentMethod)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `items_in_cart`
[INFO] [stdout]   --> src/ply/ddd.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn items_in_cart(c: ShoppingCart)  -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "b15751afd2b0418cae48c7b2855d119435e4da640d79cd15a0a839bea86861eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b15751afd2b0418cae48c7b2855d119435e4da640d79cd15a0a839bea86861eb", kill_on_drop: false }`
[INFO] [stdout] b15751afd2b0418cae48c7b2855d119435e4da640d79cd15a0a839bea86861eb
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28e999600b1a831d24aa27ffa96277e3b44cd0c5a1640247968c6af7a68156cb
[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" "28e999600b1a831d24aa27ffa96277e3b44cd0c5a1640247968c6af7a68156cb", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `EmptyCart`
[INFO] [stderr]   --> src/ply/ddd.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     EmptyCart,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ActiveCart`
[INFO] [stderr]   --> src/ply/ddd.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     ActiveCart(UnpayedItems),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PaidCart`
[INFO] [stderr]   --> src/ply/ddd.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     PaidCart(PayedItems, PaymentMethod)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_cart`
[INFO] [stderr]   --> src/ply/ddd.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn new_cart()  -> ShoppingCart {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `items_in_cart`
[INFO] [stderr]   --> src/ply/ddd.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn items_in_cart(c: ShoppingCart)  -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_to_cart`
[INFO] [stderr]   --> src/ply/ddd.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn add_to_cart(c: ShoppingCart, i: Item) -> ShoppingCart {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PaidCart`
[INFO] [stderr]   --> src/ply/ddd.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     PaidCart(PayedItems, PaymentMethod)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `items_in_cart`
[INFO] [stderr]   --> src/ply/ddd.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn items_in_cart(c: ShoppingCart)  -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/playground-a139bb7f0cf5a0a2
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration_ply-90e8fdc540a407ab
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests playground
[INFO] [stdout] test ply::combinators::tests::test_priv ... ok
[INFO] [stdout] test ply::ddd::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_compose ... ok
[INFO] [stdout] test test_apply ... ok
[INFO] [stdout] test test_trush ... ok
[INFO] [stdout] test test_identity ... ok
[INFO] [stdout] test test_constt ... ok
[INFO] [stdout] test test_flip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "28e999600b1a831d24aa27ffa96277e3b44cd0c5a1640247968c6af7a68156cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e999600b1a831d24aa27ffa96277e3b44cd0c5a1640247968c6af7a68156cb", kill_on_drop: false }`
[INFO] [stdout] 28e999600b1a831d24aa27ffa96277e3b44cd0c5a1640247968c6af7a68156cb