[INFO] fetching crate yttrium_std_db_read 0.1.0...
[INFO] testing yttrium_std_db_read-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate yttrium_std_db_read 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate yttrium_std_db_read 0.1.0 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 crates.io crate yttrium_std_db_read 0.1.0
[INFO] finished tweaking crates.io crate yttrium_std_db_read 0.1.0
[INFO] tweaked toml for crates.io crate yttrium_std_db_read 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba05ae79d671c1c0cc7bf7758ac552861bcaac16b5cde65d1668e798ae43bd57
[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" "ba05ae79d671c1c0cc7bf7758ac552861bcaac16b5cde65d1668e798ae43bd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba05ae79d671c1c0cc7bf7758ac552861bcaac16b5cde65d1668e798ae43bd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba05ae79d671c1c0cc7bf7758ac552861bcaac16b5cde65d1668e798ae43bd57", kill_on_drop: false }`
[INFO] [stdout] ba05ae79d671c1c0cc7bf7758ac552861bcaac16b5cde65d1668e798ae43bd57
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] f348c47323d4510c987754e68b0d701638b9dbf01dd6977dd4be813e419d2921
[INFO] running `Command { std: "docker" "start" "-a" "f348c47323d4510c987754e68b0d701638b9dbf01dd6977dd4be813e419d2921", kill_on_drop: false }`
[INFO] [stderr]    Compiling yttrium_std_db_read v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "f348c47323d4510c987754e68b0d701638b9dbf01dd6977dd4be813e419d2921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f348c47323d4510c987754e68b0d701638b9dbf01dd6977dd4be813e419d2921", kill_on_drop: false }`
[INFO] [stdout] f348c47323d4510c987754e68b0d701638b9dbf01dd6977dd4be813e419d2921
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a03375a3aa91f6cdea15fc0fe6e822a03d51b5c40af4075f8e5f7ecfe607710
[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" "5a03375a3aa91f6cdea15fc0fe6e822a03d51b5c40af4075f8e5f7ecfe607710", kill_on_drop: false }`
[INFO] [stderr]    Compiling yttrium_std_db_read v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "5a03375a3aa91f6cdea15fc0fe6e822a03d51b5c40af4075f8e5f7ecfe607710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a03375a3aa91f6cdea15fc0fe6e822a03d51b5c40af4075f8e5f7ecfe607710", kill_on_drop: false }`
[INFO] [stdout] 5a03375a3aa91f6cdea15fc0fe6e822a03d51b5c40af4075f8e5f7ecfe607710
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8290dff87ca8cfd979a9507ad5354bdedb755fc1e4be295fc2a4afd94bd0b0f8
[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" "8290dff87ca8cfd979a9507ad5354bdedb755fc1e4be295fc2a4afd94bd0b0f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yttrium_std_db_read-f172de6930c31f01
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yttrium_std_db_read
[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] [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" "8290dff87ca8cfd979a9507ad5354bdedb755fc1e4be295fc2a4afd94bd0b0f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8290dff87ca8cfd979a9507ad5354bdedb755fc1e4be295fc2a4afd94bd0b0f8", kill_on_drop: false }`
[INFO] [stdout] 8290dff87ca8cfd979a9507ad5354bdedb755fc1e4be295fc2a4afd94bd0b0f8