[INFO] fetching crate abstractgraph 0.1.4...
[INFO] testing abstractgraph-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate abstractgraph 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate abstractgraph 0.1.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abstractgraph 0.1.4
[INFO] finished tweaking crates.io crate abstractgraph 0.1.4
[INFO] tweaked toml for crates.io crate abstractgraph 0.1.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8ead689a9cf5609b32f6822847bd59568e938b126c353327acb49e35d8b4734
[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" "d8ead689a9cf5609b32f6822847bd59568e938b126c353327acb49e35d8b4734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8ead689a9cf5609b32f6822847bd59568e938b126c353327acb49e35d8b4734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8ead689a9cf5609b32f6822847bd59568e938b126c353327acb49e35d8b4734", kill_on_drop: false }`
[INFO] [stdout] d8ead689a9cf5609b32f6822847bd59568e938b126c353327acb49e35d8b4734
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ea0a6934025eae91c54fcb604ab0b25f7afa059d3dfbfcceff33d3b380dc4bc
[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" "4ea0a6934025eae91c54fcb604ab0b25f7afa059d3dfbfcceff33d3b380dc4bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling priority-queue v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling abstractgraph v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.62s
[INFO] running `Command { std: "docker" "inspect" "4ea0a6934025eae91c54fcb604ab0b25f7afa059d3dfbfcceff33d3b380dc4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ea0a6934025eae91c54fcb604ab0b25f7afa059d3dfbfcceff33d3b380dc4bc", kill_on_drop: false }`
[INFO] [stdout] 4ea0a6934025eae91c54fcb604ab0b25f7afa059d3dfbfcceff33d3b380dc4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d90163fee96440cdd822e8909c2c1d9cefb426eeae5cc3a09db3a61dd4f47dc
[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" "4d90163fee96440cdd822e8909c2c1d9cefb426eeae5cc3a09db3a61dd4f47dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling abstractgraph v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/dijkstra.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut last_distance: W;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "4d90163fee96440cdd822e8909c2c1d9cefb426eeae5cc3a09db3a61dd4f47dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d90163fee96440cdd822e8909c2c1d9cefb426eeae5cc3a09db3a61dd4f47dc", kill_on_drop: false }`
[INFO] [stdout] 4d90163fee96440cdd822e8909c2c1d9cefb426eeae5cc3a09db3a61dd4f47dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b06a891804f8f55a3367ba9cd856526158ba855ecbc70c406eaf0b0c2d7c8fbe
[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" "b06a891804f8f55a3367ba9cd856526158ba855ecbc70c406eaf0b0c2d7c8fbe", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/dijkstra.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut last_distance: W;
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `abstractgraph` (test "dijkstra") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/abstractgraph-3b6cb749c949ed5a)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/adjacency.rs (/opt/rustwide/target/debug/deps/adjacency-00bdffc37f0b5a81)
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test chain8 ... ok
[INFO] [stdout] test full5 ... ok
[INFO] [stdout] test grid3_full ... ok
[INFO] [stderr]      Running tests/bfs.rs (/opt/rustwide/target/debug/deps/bfs-77b01235125d45bd)
[INFO] [stdout] test grid3_rightdown ... ok
[INFO] [stdout] test parallel2 ... ok
[INFO] [stdout] test trivial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running tests/dfs.rs (/opt/rustwide/target/debug/deps/dfs-062d9515b62adde9)
[INFO] [stdout] test chain8 ... ok
[INFO] [stdout] test parallel2 ... ok
[INFO] [stdout] test grid3_rightdown ... ok
[INFO] [stdout] test trivial ... ok
[INFO] [stdout] test full5 ... ok
[INFO] [stdout] test grid3_full ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 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 trivial ... ok
[INFO] [stdout] test full5 ... ok
[INFO] [stdout] test grid3_rightdown ... ok
[INFO] [stdout] test chain8 ... ok
[INFO] [stdout] test grid3_full ... ok
[INFO] [stdout] test parallel2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/dijkstra.rs (/opt/rustwide/target/debug/deps/dijkstra-753959690acc23ce)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test grid3_rightdown ... ok
[INFO] [stdout] test chain8 ... ok
[INFO] [stdout] test grid3_full ... ok
[INFO] [stdout] test parallel2 ... ok
[INFO] [stdout] test trivial ... ok
[INFO] [stderr]    Doc-tests abstractgraph
[INFO] [stdout] test full5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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" "b06a891804f8f55a3367ba9cd856526158ba855ecbc70c406eaf0b0c2d7c8fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06a891804f8f55a3367ba9cd856526158ba855ecbc70c406eaf0b0c2d7c8fbe", kill_on_drop: false }`
[INFO] [stdout] b06a891804f8f55a3367ba9cd856526158ba855ecbc70c406eaf0b0c2d7c8fbe