[INFO] fetching crate read_write_at 0.1.0...
[INFO] testing read_write_at-0.1.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate read_write_at 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate read_write_at 0.1.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate read_write_at 0.1.0
[INFO] finished tweaking crates.io crate read_write_at 0.1.0
[INFO] tweaked toml for crates.io crate read_write_at 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0286ee6de9016ac1d9ed52c3ef4b24405b7c5664fb9912f47ce27116d4fec89a
[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" "0286ee6de9016ac1d9ed52c3ef4b24405b7c5664fb9912f47ce27116d4fec89a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0286ee6de9016ac1d9ed52c3ef4b24405b7c5664fb9912f47ce27116d4fec89a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0286ee6de9016ac1d9ed52c3ef4b24405b7c5664fb9912f47ce27116d4fec89a", kill_on_drop: false }`
[INFO] [stdout] 0286ee6de9016ac1d9ed52c3ef4b24405b7c5664fb9912f47ce27116d4fec89a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd3a0ba0008e066f1957817b53267a3acda009b4c2e1bd08878b1542f8fe3d5e
[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" "dd3a0ba0008e066f1957817b53267a3acda009b4c2e1bd08878b1542f8fe3d5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_write_at v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "dd3a0ba0008e066f1957817b53267a3acda009b4c2e1bd08878b1542f8fe3d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3a0ba0008e066f1957817b53267a3acda009b4c2e1bd08878b1542f8fe3d5e", kill_on_drop: false }`
[INFO] [stdout] dd3a0ba0008e066f1957817b53267a3acda009b4c2e1bd08878b1542f8fe3d5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 534c75fc8dbd882682c296e9e701e4496e161cdcbc2544dcc07bbd38eba8edfd
[INFO] running `Command { std: "docker" "start" "-a" "534c75fc8dbd882682c296e9e701e4496e161cdcbc2544dcc07bbd38eba8edfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_write_at v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "534c75fc8dbd882682c296e9e701e4496e161cdcbc2544dcc07bbd38eba8edfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "534c75fc8dbd882682c296e9e701e4496e161cdcbc2544dcc07bbd38eba8edfd", kill_on_drop: false }`
[INFO] [stdout] 534c75fc8dbd882682c296e9e701e4496e161cdcbc2544dcc07bbd38eba8edfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 422454b46ff45ef6a28dcaa972e2fbcc43c45daa01c7bce825a44f07d6c7f147
[INFO] running `Command { std: "docker" "start" "-a" "422454b46ff45ef6a28dcaa972e2fbcc43c45daa01c7bce825a44f07d6c7f147", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/read_write_at-f28d84d3a7b36b23
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::check_refc_wrapping_works ... ok
[INFO] [stderr]    Doc-tests read_write_at
[INFO] [stdout] test tests::check_mutex_wrapping_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - DerefWrapper (line 289) ... ok
[INFO] [stdout] test src/lib.rs - ReadWriteSeek (line 225) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "422454b46ff45ef6a28dcaa972e2fbcc43c45daa01c7bce825a44f07d6c7f147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422454b46ff45ef6a28dcaa972e2fbcc43c45daa01c7bce825a44f07d6c7f147", kill_on_drop: false }`
[INFO] [stdout] 422454b46ff45ef6a28dcaa972e2fbcc43c45daa01c7bce825a44f07d6c7f147
