[INFO] cloning repository https://github.com/forticulous/sieve
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/forticulous/sieve" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforticulous%2Fsieve", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforticulous%2Fsieve'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa779093e14d095f08038b27bd444c9eb5b15cdc
[INFO] testing forticulous/sieve against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforticulous%2Fsieve" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/forticulous/sieve 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/forticulous/sieve
[INFO] finished tweaking git repo https://github.com/forticulous/sieve
[INFO] tweaked toml for git repo https://github.com/forticulous/sieve written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/forticulous/sieve 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a82cb241157eed34a42447d89c263d9380aa591160440cf7155b723e2d0e8f3e
[INFO] running `Command { std: "docker" "start" "-a" "a82cb241157eed34a42447d89c263d9380aa591160440cf7155b723e2d0e8f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a82cb241157eed34a42447d89c263d9380aa591160440cf7155b723e2d0e8f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a82cb241157eed34a42447d89c263d9380aa591160440cf7155b723e2d0e8f3e", kill_on_drop: false }`
[INFO] [stdout] a82cb241157eed34a42447d89c263d9380aa591160440cf7155b723e2d0e8f3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] fe47142ce10cef4d35d06b3dfc4f6836d80052b8ff8867dcf4beee65cd2107e5
[INFO] running `Command { std: "docker" "start" "-a" "fe47142ce10cef4d35d06b3dfc4f6836d80052b8ff8867dcf4beee65cd2107e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling sieve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "fe47142ce10cef4d35d06b3dfc4f6836d80052b8ff8867dcf4beee65cd2107e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe47142ce10cef4d35d06b3dfc4f6836d80052b8ff8867dcf4beee65cd2107e5", kill_on_drop: false }`
[INFO] [stdout] fe47142ce10cef4d35d06b3dfc4f6836d80052b8ff8867dcf4beee65cd2107e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0cd534f6393a61944c9d953d83ac11723cb7c1bab4783a00d4cf427208d52ad
[INFO] running `Command { std: "docker" "start" "-a" "c0cd534f6393a61944c9d953d83ac11723cb7c1bab4783a00d4cf427208d52ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling sieve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "c0cd534f6393a61944c9d953d83ac11723cb7c1bab4783a00d4cf427208d52ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0cd534f6393a61944c9d953d83ac11723cb7c1bab4783a00d4cf427208d52ad", kill_on_drop: false }`
[INFO] [stdout] c0cd534f6393a61944c9d953d83ac11723cb7c1bab4783a00d4cf427208d52ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] f3a0cf6302991c44925697dcfe58ebbe04f3e49d688c40ce61a487d293fcb60b
[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" "f3a0cf6302991c44925697dcfe58ebbe04f3e49d688c40ce61a487d293fcb60b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sieve-da71deaf966e2707
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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" "f3a0cf6302991c44925697dcfe58ebbe04f3e49d688c40ce61a487d293fcb60b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a0cf6302991c44925697dcfe58ebbe04f3e49d688c40ce61a487d293fcb60b", kill_on_drop: false }`
[INFO] [stdout] f3a0cf6302991c44925697dcfe58ebbe04f3e49d688c40ce61a487d293fcb60b