[INFO] fetching crate minilp 0.2.2...
[INFO] testing minilp-0.2.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate minilp 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate minilp 0.2.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minilp 0.2.2
[INFO] finished tweaking crates.io crate minilp 0.2.2
[INFO] tweaked toml for crates.io crate minilp 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate minilp 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eec97ebe9df0fc30876fd5aed660d5cd61f71a3c8e8cd72f3797ddeeaaba136
[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" "0eec97ebe9df0fc30876fd5aed660d5cd61f71a3c8e8cd72f3797ddeeaaba136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eec97ebe9df0fc30876fd5aed660d5cd61f71a3c8e8cd72f3797ddeeaaba136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eec97ebe9df0fc30876fd5aed660d5cd61f71a3c8e8cd72f3797ddeeaaba136", kill_on_drop: false }`
[INFO] [stdout] 0eec97ebe9df0fc30876fd5aed660d5cd61f71a3c8e8cd72f3797ddeeaaba136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c6276f3b0a515aa810c69d585de04dfd5a3c41a40e87926d0f8f2de1a2291a6
[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" "0c6276f3b0a515aa810c69d585de04dfd5a3c41a40e87926d0f8f2de1a2291a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling sprs v0.7.1
[INFO] [stderr]    Compiling minilp v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.11s
[INFO] running `Command { std: "docker" "inspect" "0c6276f3b0a515aa810c69d585de04dfd5a3c41a40e87926d0f8f2de1a2291a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6276f3b0a515aa810c69d585de04dfd5a3c41a40e87926d0f8f2de1a2291a6", kill_on_drop: false }`
[INFO] [stdout] 0c6276f3b0a515aa810c69d585de04dfd5a3c41a40e87926d0f8f2de1a2291a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5163fc2d4e8204ad2385a2140e23206e3786241f7f0417496824ac524b0835dc
[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" "5163fc2d4e8204ad2385a2140e23206e3786241f7f0417496824ac524b0835dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling minilp v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.82s
[INFO] running `Command { std: "docker" "inspect" "5163fc2d4e8204ad2385a2140e23206e3786241f7f0417496824ac524b0835dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5163fc2d4e8204ad2385a2140e23206e3786241f7f0417496824ac524b0835dc", kill_on_drop: false }`
[INFO] [stdout] 5163fc2d4e8204ad2385a2140e23206e3786241f7f0417496824ac524b0835dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 156ccaff58e1f083cbc138edc3f02013f40427ae122ae9b850f8ea0b2237aa09
[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" "156ccaff58e1f083cbc138edc3f02013f40427ae122ae9b850f8ea0b2237aa09", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minilp-1dc65664909c8d54
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test ordering::tests::colamd_singular ... ok
[INFO] [stdout] test solver::tests::initial_solve ... ok
[INFO] [stdout] test solver::tests::initialize ... ok
[INFO] [stdout] test sparse::tests::mat_transpose ... ok
[INFO] [stdout] test tests::add_constraint ... ok
[INFO] [stdout] test lu::tests::lu_rand ... ok
[INFO] [stdout] test tests::gomory_cut ... ok
[INFO] [stdout] test tests::fix_unfix_var ... ok
[INFO] [stdout] test tests::empty_expr_constraints ... ok
[INFO] [stdout] test tests::free_variables ... ok
[INFO] [stdout] test ordering::tests::diag_matching ... ok
[INFO] [stdout] test ordering::tests::colamd ... ok
[INFO] [stdout] test tests::optimize ... ok
[INFO] [stdout] test ordering::tests::block_diag_form ... ok
[INFO] [stdout] test mps::tests::test_parse_mps_file ... ok
[INFO] [stdout] test lu::tests::lu_singular ... ok
[INFO] [stdout] test lu::tests::lu_simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests minilp
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Problem::add_constraint (line 254) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "156ccaff58e1f083cbc138edc3f02013f40427ae122ae9b850f8ea0b2237aa09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156ccaff58e1f083cbc138edc3f02013f40427ae122ae9b850f8ea0b2237aa09", kill_on_drop: false }`
[INFO] [stdout] 156ccaff58e1f083cbc138edc3f02013f40427ae122ae9b850f8ea0b2237aa09