[INFO] crate linreg 0.2.0 is already in cache
[INFO] testing linreg-0.2.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate linreg 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate linreg 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09da3cc892fb1c3bdca93422763bbdea21a942222ee231b65d79b082d2497d85
[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" "09da3cc892fb1c3bdca93422763bbdea21a942222ee231b65d79b082d2497d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09da3cc892fb1c3bdca93422763bbdea21a942222ee231b65d79b082d2497d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09da3cc892fb1c3bdca93422763bbdea21a942222ee231b65d79b082d2497d85", kill_on_drop: false }`
[INFO] [stdout] 09da3cc892fb1c3bdca93422763bbdea21a942222ee231b65d79b082d2497d85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dd029d0e80bebb3c0448f74d32810e9780de1c5ff6896d7c8228415d31d39ed
[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" "4dd029d0e80bebb3c0448f74d32810e9780de1c5ff6896d7c8228415d31d39ed", 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 4.15s
[INFO] running `Command { std: "docker" "inspect" "4dd029d0e80bebb3c0448f74d32810e9780de1c5ff6896d7c8228415d31d39ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dd029d0e80bebb3c0448f74d32810e9780de1c5ff6896d7c8228415d31d39ed", kill_on_drop: false }`
[INFO] [stdout] 4dd029d0e80bebb3c0448f74d32810e9780de1c5ff6896d7c8228415d31d39ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d8e4f5315c8addc424a7824f22a64da69cfe0ebb3a69b20091965fe1d42c2b6
[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" "9d8e4f5315c8addc424a7824f22a64da69cfe0ebb3a69b20091965fe1d42c2b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling linreg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "9d8e4f5315c8addc424a7824f22a64da69cfe0ebb3a69b20091965fe1d42c2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8e4f5315c8addc424a7824f22a64da69cfe0ebb3a69b20091965fe1d42c2b6", kill_on_drop: false }`
[INFO] [stdout] 9d8e4f5315c8addc424a7824f22a64da69cfe0ebb3a69b20091965fe1d42c2b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8af611bfa148ffe7e8640bc0fcce1d0c1a57b6922cf311841eeefd101b71704f
[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" "8af611bfa148ffe7e8640bc0fcce1d0c1a57b6922cf311841eeefd101b71704f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/linreg-d37d35d44382a2e5
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::float_tuples_regression ... ok
[INFO] [stdout] test tests::int_slices_regression ... ok
[INFO] [stdout] test tests::int_tuples_regression ... ok
[INFO] [stdout] test tests::lin_reg_imprecises_vs_linreg ... ok
[INFO] [stdout] test tests::float_slices_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" "8af611bfa148ffe7e8640bc0fcce1d0c1a57b6922cf311841eeefd101b71704f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af611bfa148ffe7e8640bc0fcce1d0c1a57b6922cf311841eeefd101b71704f", kill_on_drop: false }`
[INFO] [stdout] 8af611bfa148ffe7e8640bc0fcce1d0c1a57b6922cf311841eeefd101b71704f