[INFO] fetching crate matrixgraph 0.1.0...
[INFO] testing matrixgraph-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate matrixgraph 0.1.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate matrixgraph 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrixgraph 0.1.0
[INFO] finished tweaking crates.io crate matrixgraph 0.1.0
[INFO] tweaked toml for crates.io crate matrixgraph 0.1.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a964b001af4da85a4f71343996d163ab49ecb9171fd3ff4952aaea3798bccd5
[INFO] running `Command { std: "docker" "start" "-a" "7a964b001af4da85a4f71343996d163ab49ecb9171fd3ff4952aaea3798bccd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a964b001af4da85a4f71343996d163ab49ecb9171fd3ff4952aaea3798bccd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a964b001af4da85a4f71343996d163ab49ecb9171fd3ff4952aaea3798bccd5", kill_on_drop: false }`
[INFO] [stdout] 7a964b001af4da85a4f71343996d163ab49ecb9171fd3ff4952aaea3798bccd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42d1367f5e550609aa3b501288926b9045b66c2cff16d086ebb57e5ac8010da5
[INFO] running `Command { std: "docker" "start" "-a" "42d1367f5e550609aa3b501288926b9045b66c2cff16d086ebb57e5ac8010da5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling matrixgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![crate_type = "dylib"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #![crate_type = "lib"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "42d1367f5e550609aa3b501288926b9045b66c2cff16d086ebb57e5ac8010da5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d1367f5e550609aa3b501288926b9045b66c2cff16d086ebb57e5ac8010da5", kill_on_drop: false }`
[INFO] [stdout] 42d1367f5e550609aa3b501288926b9045b66c2cff16d086ebb57e5ac8010da5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f27621550f290ae171a3e3189890a6eaee5a6ebf1bdfcb9a27bc72e6fed0ac
[INFO] running `Command { std: "docker" "start" "-a" "54f27621550f290ae171a3e3189890a6eaee5a6ebf1bdfcb9a27bc72e6fed0ac", kill_on_drop: false }`
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![crate_type = "dylib"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #![crate_type = "lib"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling matrixgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/simple_graph.rs:217:33
[INFO] [stdout]     |
[INFO] [stdout] 217 |         g.set_edge((1, 1), Some((1.0f64)));
[INFO] [stdout]     |                                 ^      ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:48:9
[INFO] [stdout]     |
[INFO] [stdout] 48  | #![deny(unused_parens)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 217 -         g.set_edge((1, 1), Some((1.0f64)));
[INFO] [stdout] 217 +         g.set_edge((1, 1), Some(1.0f64));
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![crate_type = "dylib"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #![crate_type = "lib"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "54f27621550f290ae171a3e3189890a6eaee5a6ebf1bdfcb9a27bc72e6fed0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f27621550f290ae171a3e3189890a6eaee5a6ebf1bdfcb9a27bc72e6fed0ac", kill_on_drop: false }`
[INFO] [stdout] 54f27621550f290ae171a3e3189890a6eaee5a6ebf1bdfcb9a27bc72e6fed0ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68e3c0e04c27baeb2ef0a3b2ccf0d6db9133ea908c17486d55e9ba3f01df2ba6
[INFO] running `Command { std: "docker" "start" "-a" "68e3c0e04c27baeb2ef0a3b2ccf0d6db9133ea908c17486d55e9ba3f01df2ba6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> src/lib.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | #![crate_type = "dylib"]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] note: attribute also specified here
[INFO] [stderr]   --> src/lib.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | #![crate_type = "lib"]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[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] 
[INFO] [stderr] warning: `matrixgraph` (lib) generated 1 warning
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/simple_graph.rs:217:33
[INFO] [stderr]     |
[INFO] [stderr] 217 |         g.set_edge((1, 1), Some((1.0f64)));
[INFO] [stderr]     |                                 ^      ^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:48:9
[INFO] [stderr]     |
[INFO] [stderr] 48  | #![deny(unused_parens)]
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 217 -         g.set_edge((1, 1), Some((1.0f64)));
[INFO] [stderr] 217 +         g.set_edge((1, 1), Some(1.0f64));
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `matrixgraph` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/matrixgraph-d522cd4a82ffed13)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test digraph::test::test_graph_construction_1 ... ok
[INFO] [stdout] test digraph::test::test_graph_construction_3 ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_1 ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_3 ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_5 ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_6 ... ok
[INFO] [stdout] test digraph::test::test_graph_construction_4 - should panic ... ok
[INFO] [stdout] test digraph::test::test_graph_construction_2 - should panic ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_2 - should panic ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_4 - should panic ... ok
[INFO] [stdout] test simple_graph::test::test_graph_construction_7 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests matrixgraph
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68e3c0e04c27baeb2ef0a3b2ccf0d6db9133ea908c17486d55e9ba3f01df2ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e3c0e04c27baeb2ef0a3b2ccf0d6db9133ea908c17486d55e9ba3f01df2ba6", kill_on_drop: false }`
[INFO] [stdout] 68e3c0e04c27baeb2ef0a3b2ccf0d6db9133ea908c17486d55e9ba3f01df2ba6