[INFO] fetching crate yc-server 0.0.1...
[INFO] testing yc-server-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate yc-server 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yc-server 0.0.1 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 crates.io crate yc-server 0.0.1
[INFO] finished tweaking crates.io crate yc-server 0.0.1
[INFO] tweaked toml for crates.io crate yc-server 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate yc-server 0.0.1 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] 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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 588df231ce6eee91d4a0459ba90eb2c0f3d6695d3d8d6f9047d7906c9c3a68b1
[INFO] running `Command { std: "docker" "start" "-a" "588df231ce6eee91d4a0459ba90eb2c0f3d6695d3d8d6f9047d7906c9c3a68b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "588df231ce6eee91d4a0459ba90eb2c0f3d6695d3d8d6f9047d7906c9c3a68b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588df231ce6eee91d4a0459ba90eb2c0f3d6695d3d8d6f9047d7906c9c3a68b1", kill_on_drop: false }`
[INFO] [stdout] 588df231ce6eee91d4a0459ba90eb2c0f3d6695d3d8d6f9047d7906c9c3a68b1
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 5dfbf46f12e8ed9a944a9ae115d02a7deb89a5abca1d84c7c59ad252668e4e22
[INFO] running `Command { std: "docker" "start" "-a" "5dfbf46f12e8ed9a944a9ae115d02a7deb89a5abca1d84c7c59ad252668e4e22", kill_on_drop: false }`
[INFO] [stderr]    Compiling yc-server v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "5dfbf46f12e8ed9a944a9ae115d02a7deb89a5abca1d84c7c59ad252668e4e22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dfbf46f12e8ed9a944a9ae115d02a7deb89a5abca1d84c7c59ad252668e4e22", kill_on_drop: false }`
[INFO] [stdout] 5dfbf46f12e8ed9a944a9ae115d02a7deb89a5abca1d84c7c59ad252668e4e22
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4bd5db1e8aa52f0b0ba22d1cfe11b9034e307311ab8984ea75fb0c8ee9ab09f
[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" "e4bd5db1e8aa52f0b0ba22d1cfe11b9034e307311ab8984ea75fb0c8ee9ab09f", kill_on_drop: false }`
[INFO] [stderr]    Compiling yc-server v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "e4bd5db1e8aa52f0b0ba22d1cfe11b9034e307311ab8984ea75fb0c8ee9ab09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4bd5db1e8aa52f0b0ba22d1cfe11b9034e307311ab8984ea75fb0c8ee9ab09f", kill_on_drop: false }`
[INFO] [stdout] e4bd5db1e8aa52f0b0ba22d1cfe11b9034e307311ab8984ea75fb0c8ee9ab09f
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c2bfd120698ebcc000b5de54677cb69f89a5aa00ee5bec70ea99426e8768bcea
[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" "c2bfd120698ebcc000b5de54677cb69f89a5aa00ee5bec70ea99426e8768bcea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yc_server-38c94f36d5f7b272
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yc-313064d958c38061
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yc-server
[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] [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" "c2bfd120698ebcc000b5de54677cb69f89a5aa00ee5bec70ea99426e8768bcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2bfd120698ebcc000b5de54677cb69f89a5aa00ee5bec70ea99426e8768bcea", kill_on_drop: false }`
[INFO] [stdout] c2bfd120698ebcc000b5de54677cb69f89a5aa00ee5bec70ea99426e8768bcea