[INFO] fetching crate blossom 0.4.0...
[INFO] testing blossom-0.4.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate blossom 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate blossom 0.4.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blossom 0.4.0
[INFO] finished tweaking crates.io crate blossom 0.4.0
[INFO] tweaked toml for crates.io crate blossom 0.4.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 4865d5789d5e764723379114f903b068fdacf65b5e412804e0cac14e0f1a7018
[INFO] running `Command { std: "docker" "start" "-a" "4865d5789d5e764723379114f903b068fdacf65b5e412804e0cac14e0f1a7018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4865d5789d5e764723379114f903b068fdacf65b5e412804e0cac14e0f1a7018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4865d5789d5e764723379114f903b068fdacf65b5e412804e0cac14e0f1a7018", kill_on_drop: false }`
[INFO] [stdout] 4865d5789d5e764723379114f903b068fdacf65b5e412804e0cac14e0f1a7018
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bc7918d563f362213392d0df78a8c8c58ea0ef8e660d14c3369ae90cc460b96
[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" "1bc7918d563f362213392d0df78a8c8c58ea0ef8e660d14c3369ae90cc460b96", kill_on_drop: false }`
[INFO] [stderr]    Compiling blossom v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "1bc7918d563f362213392d0df78a8c8c58ea0ef8e660d14c3369ae90cc460b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc7918d563f362213392d0df78a8c8c58ea0ef8e660d14c3369ae90cc460b96", kill_on_drop: false }`
[INFO] [stdout] 1bc7918d563f362213392d0df78a8c8c58ea0ef8e660d14c3369ae90cc460b96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] f7009bb9d239f9e68714ad8cb7e4c0cf892da02c357fe5cf94b46b4f7222343f
[INFO] running `Command { std: "docker" "start" "-a" "f7009bb9d239f9e68714ad8cb7e4c0cf892da02c357fe5cf94b46b4f7222343f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling blossom v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 46.00s
[INFO] running `Command { std: "docker" "inspect" "f7009bb9d239f9e68714ad8cb7e4c0cf892da02c357fe5cf94b46b4f7222343f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7009bb9d239f9e68714ad8cb7e4c0cf892da02c357fe5cf94b46b4f7222343f", kill_on_drop: false }`
[INFO] [stdout] f7009bb9d239f9e68714ad8cb7e4c0cf892da02c357fe5cf94b46b4f7222343f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 4982dd017b602413dda597f1deab9c57c09191e12894f9ff1625c3b3c6313160
[INFO] running `Command { std: "docker" "start" "-a" "4982dd017b602413dda597f1deab9c57c09191e12894f9ff1625c3b3c6313160", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blossom-bec5092ad676931b)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test graph::find_augmenting_path_two ... ok
[INFO] [stdout] test graph::find_augmenting_path_maybe_blossom2 ... ok
[INFO] [stdout] test graph::find_augmenting_path_one ... ok
[INFO] [stdout] test graph::lift_root ... ok
[INFO] [stdout] test graph::lift_right ... ok
[INFO] [stdout] test graph::find_match_four ... ok
[INFO] [stdout] test graph::contract_take_edge_from_leaf ... ok
[INFO] [stdout] test graph::contract ... ok
[INFO] [stdout] test graph::find_augmenting_path_maybe_blossom1 ... ok
[INFO] [stdout] test graph::find_match_two ... ok
[INFO] [stdout] test graph::lift_left ... ok
[INFO] [stdout] test weighted::find_match_sparse ... ok
[INFO] [stdout] test graph::lift_order ... ok
[INFO] [stdout] test graph::find_match_one ... ok
[INFO] [stdout] test connect::two_groups ... ok
[INFO] [stdout] test weighted::find_match_dense ... ok
[INFO] [stdout] test graph::bench::test_random_10 ... ok
[INFO] [stdout] test graph::bench::test_random_12 ... ok
[INFO] [stdout] test graph::bench::test_random_100 ... ok
[INFO] [stdout] test graph::bench::test_random_1000 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.46s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blossom
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/graph.rs - graph::AnnotatedGraph<Annotation>::new (line 38) ... ok
[INFO] [stdout] test src/graph.rs - graph::AnnotatedGraph<Annotation>::maximum_matching (line 237) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4982dd017b602413dda597f1deab9c57c09191e12894f9ff1625c3b3c6313160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4982dd017b602413dda597f1deab9c57c09191e12894f9ff1625c3b3c6313160", kill_on_drop: false }`
[INFO] [stdout] 4982dd017b602413dda597f1deab9c57c09191e12894f9ff1625c3b3c6313160