[INFO] fetching crate flips 0.2.1...
[INFO] testing flips-0.2.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate flips 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate flips 0.2.1 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 flips 0.2.1
[INFO] finished tweaking crates.io crate flips 0.2.1
[INFO] tweaked toml for crates.io crate flips 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b97b2809eb2c6728e8d6b4a51474cf3fcf55a112e47b8c22f7336c032170cf7
[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" "8b97b2809eb2c6728e8d6b4a51474cf3fcf55a112e47b8c22f7336c032170cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b97b2809eb2c6728e8d6b4a51474cf3fcf55a112e47b8c22f7336c032170cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b97b2809eb2c6728e8d6b4a51474cf3fcf55a112e47b8c22f7336c032170cf7", kill_on_drop: false }`
[INFO] [stdout] 8b97b2809eb2c6728e8d6b4a51474cf3fcf55a112e47b8c22f7336c032170cf7
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d68f56d09a0e20b608244783c82b32dda8501727fb2d95a542153ff078da6a36
[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" "d68f56d09a0e20b608244783c82b32dda8501727fb2d95a542153ff078da6a36", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling flips-sys v0.2.1
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling flips v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.78s
[INFO] running `Command { std: "docker" "inspect" "d68f56d09a0e20b608244783c82b32dda8501727fb2d95a542153ff078da6a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d68f56d09a0e20b608244783c82b32dda8501727fb2d95a542153ff078da6a36", kill_on_drop: false }`
[INFO] [stdout] d68f56d09a0e20b608244783c82b32dda8501727fb2d95a542153ff078da6a36
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a76febef1a3f261ee93d0fe4b5d793d34d20f58a117da654b5fdc27983edc577
[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" "a76febef1a3f261ee93d0fe4b5d793d34d20f58a117da654b5fdc27983edc577", kill_on_drop: false }`
[INFO] [stderr]    Compiling flips v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "a76febef1a3f261ee93d0fe4b5d793d34d20f58a117da654b5fdc27983edc577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76febef1a3f261ee93d0fe4b5d793d34d20f58a117da654b5fdc27983edc577", kill_on_drop: false }`
[INFO] [stdout] a76febef1a3f261ee93d0fe4b5d793d34d20f58a117da654b5fdc27983edc577
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 49be65737a94e02ff8c8032042bcb590487a463118b48830d0d364707f6d311a
[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" "49be65737a94e02ff8c8032042bcb590487a463118b48830d0d364707f6d311a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flips-9ea7755562f869ca
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_bps-7c965992aa9dff6a
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test delta::test_create_missing_arguments ... ok
[INFO] [stdout] test test_apply_invalid ... ok
[INFO] [stdout] test linear::test_create_missing_arguments ... ok
[INFO] [stdout] test test_apply_to_output ... ok
[INFO] [stdout] test linear::test_create_identical ... ok
[INFO] [stdout] test test_apply_correct ... ok
[INFO] [stdout] test test_apply_not_this ... ok
[INFO] [stdout] test linear::test_create_apply ... ok
[INFO] [stdout] test delta::test_create_apply ... ok
[INFO] [stdout] test delta::test_create_apply_with_moremem ... ok
[INFO] [stdout] test delta::test_create_identical ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_ips-a82f0d92ab5022c0
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_apply_correct ... ok
[INFO] [stdout] test test_create_missing_arguments ... ok
[INFO] [stdout] test test_study_invalid ... ok
[INFO] [stdout] test test_apply_to_output ... ok
[INFO] [stdout] test test_apply_invalid ... ok
[INFO] [stdout] test test_study_apply_correct ... ok
[INFO] [stdout] test test_study_apply_to_output ... ok
[INFO] [stdout] test test_create_identical ... ok
[INFO] [stdout] test test_create_apply ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_ups-05eb36a3bde316cb
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_apply_not_this ... ok
[INFO] [stdout] test test_apply_invalid ... ok
[INFO] [stdout] test test_apply_correct ... ok
[INFO] [stdout] test test_apply_to_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flips
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/bps.rs - bps::BpsDeltaBuilder (line 193) ... ok
[INFO] [stdout] test src/bps.rs - bps::BpsLinearBuilder (line 101) ... 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" "49be65737a94e02ff8c8032042bcb590487a463118b48830d0d364707f6d311a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49be65737a94e02ff8c8032042bcb590487a463118b48830d0d364707f6d311a", kill_on_drop: false }`
[INFO] [stdout] 49be65737a94e02ff8c8032042bcb590487a463118b48830d0d364707f6d311a