[INFO] fetching crate linreg 0.2.0...
[INFO] testing linreg-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate linreg 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate linreg 0.2.0 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 linreg 0.2.0
[INFO] finished tweaking crates.io crate linreg 0.2.0
[INFO] tweaked toml for crates.io crate linreg 0.2.0 written to /workspace/builds/worker-11/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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 544869acd61eb6eccd80bfe80882ddbdbea9257bbf1ec45d2034303aebbd8e01
[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" "544869acd61eb6eccd80bfe80882ddbdbea9257bbf1ec45d2034303aebbd8e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "544869acd61eb6eccd80bfe80882ddbdbea9257bbf1ec45d2034303aebbd8e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "544869acd61eb6eccd80bfe80882ddbdbea9257bbf1ec45d2034303aebbd8e01", kill_on_drop: false }`
[INFO] [stdout] 544869acd61eb6eccd80bfe80882ddbdbea9257bbf1ec45d2034303aebbd8e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] ff88af627f7eb7927205b9be0172043edbc96e285df8955adb8c1e4451624806
[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" "ff88af627f7eb7927205b9be0172043edbc96e285df8955adb8c1e4451624806", kill_on_drop: false }`
[INFO] [stderr]    Compiling displaydoc v0.1.7
[INFO] [stderr]    Compiling linreg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.98s
[INFO] running `Command { std: "docker" "inspect" "ff88af627f7eb7927205b9be0172043edbc96e285df8955adb8c1e4451624806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff88af627f7eb7927205b9be0172043edbc96e285df8955adb8c1e4451624806", kill_on_drop: false }`
[INFO] [stdout] ff88af627f7eb7927205b9be0172043edbc96e285df8955adb8c1e4451624806
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 7ceebb5ec5f65975253fc5c20d44346815599207a0bc1aab2114703103d7a04a
[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" "7ceebb5ec5f65975253fc5c20d44346815599207a0bc1aab2114703103d7a04a", kill_on_drop: false }`
[INFO] [stderr]    Compiling linreg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "7ceebb5ec5f65975253fc5c20d44346815599207a0bc1aab2114703103d7a04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ceebb5ec5f65975253fc5c20d44346815599207a0bc1aab2114703103d7a04a", kill_on_drop: false }`
[INFO] [stdout] 7ceebb5ec5f65975253fc5c20d44346815599207a0bc1aab2114703103d7a04a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 1c72f2ec34e9e4e2c9479fcfc5184c81712762600a867b4ddbfe0a4fd51ff083
[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" "1c72f2ec34e9e4e2c9479fcfc5184c81712762600a867b4ddbfe0a4fd51ff083", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/linreg-8a749bf77617c1e7
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::float_slices_regression ... ok
[INFO] [stdout] test tests::int_tuples_regression ... ok
[INFO] [stdout] test tests::int_slices_regression ... ok
[INFO] [stdout] test tests::lin_reg_imprecises_vs_linreg ... ok
[INFO] [stdout] test tests::float_tuples_regression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests linreg
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1c72f2ec34e9e4e2c9479fcfc5184c81712762600a867b4ddbfe0a4fd51ff083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c72f2ec34e9e4e2c9479fcfc5184c81712762600a867b4ddbfe0a4fd51ff083", kill_on_drop: false }`
[INFO] [stdout] 1c72f2ec34e9e4e2c9479fcfc5184c81712762600a867b4ddbfe0a4fd51ff083