[INFO] cloning repository https://github.com/HamaguRe/sqrt_diff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HamaguRe/sqrt_diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHamaguRe%2Fsqrt_diff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHamaguRe%2Fsqrt_diff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb79bc2efc984af226deb6bda461941c6a3bd3fa
[INFO] testing HamaguRe/sqrt_diff against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHamaguRe%2Fsqrt_diff" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HamaguRe/sqrt_diff 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 git repo https://github.com/HamaguRe/sqrt_diff
[INFO] finished tweaking git repo https://github.com/HamaguRe/sqrt_diff
[INFO] tweaked toml for git repo https://github.com/HamaguRe/sqrt_diff written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/HamaguRe/sqrt_diff 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 330b292c6d9697db921828af7e69556e40505c5fb1d01e37b7697124fc32cb90
[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" "330b292c6d9697db921828af7e69556e40505c5fb1d01e37b7697124fc32cb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "330b292c6d9697db921828af7e69556e40505c5fb1d01e37b7697124fc32cb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "330b292c6d9697db921828af7e69556e40505c5fb1d01e37b7697124fc32cb90", kill_on_drop: false }`
[INFO] [stdout] 330b292c6d9697db921828af7e69556e40505c5fb1d01e37b7697124fc32cb90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6555e4c3036ee7ed3d3cd8ad7eab9282bf2cb1a5bdba29a26901c2c364815ef0
[INFO] running `Command { std: "docker" "start" "-a" "6555e4c3036ee7ed3d3cd8ad7eab9282bf2cb1a5bdba29a26901c2c364815ef0", kill_on_drop: false }`
[INFO] [stderr]    Compiling gnuplot v0.0.31
[INFO] [stderr]    Compiling sqrt_diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "6555e4c3036ee7ed3d3cd8ad7eab9282bf2cb1a5bdba29a26901c2c364815ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6555e4c3036ee7ed3d3cd8ad7eab9282bf2cb1a5bdba29a26901c2c364815ef0", kill_on_drop: false }`
[INFO] [stdout] 6555e4c3036ee7ed3d3cd8ad7eab9282bf2cb1a5bdba29a26901c2c364815ef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9694dcef3c36feb434a30b04a943364c7018ccf43c16899bbba3727403feeee9
[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" "9694dcef3c36feb434a30b04a943364c7018ccf43c16899bbba3727403feeee9", kill_on_drop: false }`
[INFO] [stderr]    Compiling sqrt_diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "9694dcef3c36feb434a30b04a943364c7018ccf43c16899bbba3727403feeee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9694dcef3c36feb434a30b04a943364c7018ccf43c16899bbba3727403feeee9", kill_on_drop: false }`
[INFO] [stdout] 9694dcef3c36feb434a30b04a943364c7018ccf43c16899bbba3727403feeee9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 697b8b3a5140f552c04f851e2f9c5a0d8e34568f007d4a45406ededdfd5c05c2
[INFO] running `Command { std: "docker" "start" "-a" "697b8b3a5140f552c04f851e2f9c5a0d8e34568f007d4a45406ededdfd5c05c2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sqrt_diff-91688e39d5263fe4
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "697b8b3a5140f552c04f851e2f9c5a0d8e34568f007d4a45406ededdfd5c05c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "697b8b3a5140f552c04f851e2f9c5a0d8e34568f007d4a45406ededdfd5c05c2", kill_on_drop: false }`
[INFO] [stdout] 697b8b3a5140f552c04f851e2f9c5a0d8e34568f007d4a45406ededdfd5c05c2