[INFO] cloning repository https://github.com/rwaterman/rust-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rwaterman/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frwaterman%2Frust-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frwaterman%2Frust-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 612a6b19993005a7ae266e61f625441f99de6ab7
[INFO] testing rwaterman/rust-algorithms against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frwaterman%2Frust-algorithms" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rwaterman/rust-algorithms on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rwaterman/rust-algorithms
[INFO] finished tweaking git repo https://github.com/rwaterman/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/rwaterman/rust-algorithms written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rwaterman/rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "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] 4d0a3e56a5de87f0a957f693fd94569110ae7a050ec2a99d05b440aa69c56525
[INFO] running `Command { std: "docker" "start" "-a" "4d0a3e56a5de87f0a957f693fd94569110ae7a050ec2a99d05b440aa69c56525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d0a3e56a5de87f0a957f693fd94569110ae7a050ec2a99d05b440aa69c56525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0a3e56a5de87f0a957f693fd94569110ae7a050ec2a99d05b440aa69c56525", kill_on_drop: false }`
[INFO] [stdout] 4d0a3e56a5de87f0a957f693fd94569110ae7a050ec2a99d05b440aa69c56525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "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] 30748436157a2e2d07f07fa67d3db46018c4e4760350f449d3a7159045b06fbd
[INFO] running `Command { std: "docker" "start" "-a" "30748436157a2e2d07f07fa67d3db46018c4e4760350f449d3a7159045b06fbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithms v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "30748436157a2e2d07f07fa67d3db46018c4e4760350f449d3a7159045b06fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30748436157a2e2d07f07fa67d3db46018c4e4760350f449d3a7159045b06fbd", kill_on_drop: false }`
[INFO] [stdout] 30748436157a2e2d07f07fa67d3db46018c4e4760350f449d3a7159045b06fbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "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] a193c6024190ffd2084206450ff8896c327315b360a26ed781ece0ec1b5e3c3d
[INFO] running `Command { std: "docker" "start" "-a" "a193c6024190ffd2084206450ff8896c327315b360a26ed781ece0ec1b5e3c3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithms v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "a193c6024190ffd2084206450ff8896c327315b360a26ed781ece0ec1b5e3c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a193c6024190ffd2084206450ff8896c327315b360a26ed781ece0ec1b5e3c3d", kill_on_drop: false }`
[INFO] [stdout] a193c6024190ffd2084206450ff8896c327315b360a26ed781ece0ec1b5e3c3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "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] 9286ddc0483f07db96682284589e4cc374a3d34b2f75f9cb8e7a49ef6d703ed2
[INFO] running `Command { std: "docker" "start" "-a" "9286ddc0483f07db96682284589e4cc374a3d34b2f75f9cb8e7a49ef6d703ed2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_algorithms-368e46442a531ac4
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9286ddc0483f07db96682284589e4cc374a3d34b2f75f9cb8e7a49ef6d703ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9286ddc0483f07db96682284589e4cc374a3d34b2f75f9cb8e7a49ef6d703ed2", kill_on_drop: false }`
[INFO] [stdout] 9286ddc0483f07db96682284589e4cc374a3d34b2f75f9cb8e7a49ef6d703ed2