[INFO] fetching crate yapb 0.3.2...
[INFO] testing yapb-0.3.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate yapb 0.3.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yapb 0.3.2 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 yapb 0.3.2
[INFO] finished tweaking crates.io crate yapb 0.3.2
[INFO] tweaked toml for crates.io crate yapb 0.3.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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: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] 4795b6ffa8a6d56e47f1c8c83b93f4a1e84ff656008650822a4661ad038abf9a
[INFO] running `Command { std: "docker" "start" "-a" "4795b6ffa8a6d56e47f1c8c83b93f4a1e84ff656008650822a4661ad038abf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4795b6ffa8a6d56e47f1c8c83b93f4a1e84ff656008650822a4661ad038abf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4795b6ffa8a6d56e47f1c8c83b93f4a1e84ff656008650822a4661ad038abf9a", kill_on_drop: false }`
[INFO] [stdout] 4795b6ffa8a6d56e47f1c8c83b93f4a1e84ff656008650822a4661ad038abf9a
[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] 9e15c7726c95bccff80b439263263951118df6fe23617515f055c7ebd0ca5933
[INFO] running `Command { std: "docker" "start" "-a" "9e15c7726c95bccff80b439263263951118df6fe23617515f055c7ebd0ca5933", kill_on_drop: false }`
[INFO] [stderr]    Compiling yapb v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "9e15c7726c95bccff80b439263263951118df6fe23617515f055c7ebd0ca5933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e15c7726c95bccff80b439263263951118df6fe23617515f055c7ebd0ca5933", kill_on_drop: false }`
[INFO] [stdout] 9e15c7726c95bccff80b439263263951118df6fe23617515f055c7ebd0ca5933
[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] 8b3b18af66d1d016bc396f40425b29f687610e8b19c9083096964a7ddf8aea87
[INFO] running `Command { std: "docker" "start" "-a" "8b3b18af66d1d016bc396f40425b29f687610e8b19c9083096964a7ddf8aea87", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling yapb v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.49s
[INFO] running `Command { std: "docker" "inspect" "8b3b18af66d1d016bc396f40425b29f687610e8b19c9083096964a7ddf8aea87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b3b18af66d1d016bc396f40425b29f687610e8b19c9083096964a7ddf8aea87", kill_on_drop: false }`
[INFO] [stdout] 8b3b18af66d1d016bc396f40425b29f687610e8b19c9083096964a7ddf8aea87
[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] 169ba87eae1ebea64a43c2008dbc988625ad332f0eaa2b78ba3e52f66db4ca03
[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" "169ba87eae1ebea64a43c2008dbc988625ad332f0eaa2b78ba3e52f66db4ca03", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yapb-a5cda2ee3300d7ae
[INFO] [stdout] running 6 tests
[INFO] [stderr]    Doc-tests yapb
[INFO] [stdout] test prefix::tests::scientific_fmt ... ok
[INFO] [stdout] test prefix::tests::binary_prefixes ... ok
[INFO] [stdout] test prefix::tests::si_prefixes ... ok
[INFO] [stdout] test prefix::tests::binary_fmt ... ok
[INFO] [stdout] test prefix::tests::sigfig_sanity ... ok
[INFO] [stdout] test tests::bar_sanity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - Counter256 (line 116) ... ok
[INFO] [stdout] test src/lib.rs - Bar (line 48) ... ok
[INFO] [stdout] test src/prefix.rs - prefix::Binary (line 89) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "169ba87eae1ebea64a43c2008dbc988625ad332f0eaa2b78ba3e52f66db4ca03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169ba87eae1ebea64a43c2008dbc988625ad332f0eaa2b78ba3e52f66db4ca03", kill_on_drop: false }`
[INFO] [stdout] 169ba87eae1ebea64a43c2008dbc988625ad332f0eaa2b78ba3e52f66db4ca03