[INFO] fetching crate linreg 0.2.0...
[INFO] testing linreg-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate linreg 0.2.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate linreg 0.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a74dec1265443b5c635bee2f85eb49b0b99d1e146e305d53838e12bb0546288
[INFO] running `Command { std: "docker" "start" "-a" "1a74dec1265443b5c635bee2f85eb49b0b99d1e146e305d53838e12bb0546288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a74dec1265443b5c635bee2f85eb49b0b99d1e146e305d53838e12bb0546288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a74dec1265443b5c635bee2f85eb49b0b99d1e146e305d53838e12bb0546288", kill_on_drop: false }`
[INFO] [stdout] 1a74dec1265443b5c635bee2f85eb49b0b99d1e146e305d53838e12bb0546288
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 668f322aaf1ed7c7c33d1edda401689b869f0a28fc1046a140a2e64044bcd33d
[INFO] running `Command { std: "docker" "start" "-a" "668f322aaf1ed7c7c33d1edda401689b869f0a28fc1046a140a2e64044bcd33d", 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 2.35s
[INFO] running `Command { std: "docker" "inspect" "668f322aaf1ed7c7c33d1edda401689b869f0a28fc1046a140a2e64044bcd33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668f322aaf1ed7c7c33d1edda401689b869f0a28fc1046a140a2e64044bcd33d", kill_on_drop: false }`
[INFO] [stdout] 668f322aaf1ed7c7c33d1edda401689b869f0a28fc1046a140a2e64044bcd33d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7a66dd230f702b8ac1a177a597392f6fb589e1f0d5afb004e2c7da7ac7f33e7
[INFO] running `Command { std: "docker" "start" "-a" "c7a66dd230f702b8ac1a177a597392f6fb589e1f0d5afb004e2c7da7ac7f33e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling linreg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "c7a66dd230f702b8ac1a177a597392f6fb589e1f0d5afb004e2c7da7ac7f33e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a66dd230f702b8ac1a177a597392f6fb589e1f0d5afb004e2c7da7ac7f33e7", kill_on_drop: false }`
[INFO] [stdout] c7a66dd230f702b8ac1a177a597392f6fb589e1f0d5afb004e2c7da7ac7f33e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2e476f1972ac1245a987d2078d8c29c0b485e9dcf90274b3a418fe09819f9e1
[INFO] running `Command { std: "docker" "start" "-a" "f2e476f1972ac1245a987d2078d8c29c0b485e9dcf90274b3a418fe09819f9e1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linreg-39a0b1fe04225405)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::float_slices_regression ... ok
[INFO] [stdout] test tests::float_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::int_tuples_regression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2e476f1972ac1245a987d2078d8c29c0b485e9dcf90274b3a418fe09819f9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2e476f1972ac1245a987d2078d8c29c0b485e9dcf90274b3a418fe09819f9e1", kill_on_drop: false }`
[INFO] [stdout] f2e476f1972ac1245a987d2078d8c29c0b485e9dcf90274b3a418fe09819f9e1