[INFO] fetching crate rbuf 0.1.1...
[INFO] testing rbuf-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate rbuf 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rbuf 0.1.1 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 rbuf 0.1.1
[INFO] finished tweaking crates.io crate rbuf 0.1.1
[INFO] tweaked toml for crates.io crate rbuf 0.1.1 written to /workspace/builds/worker-4/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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4716121347edabf17e0dd4328bd4ee3234efd893ca65edfabceccdf383beb0a
[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" "c4716121347edabf17e0dd4328bd4ee3234efd893ca65edfabceccdf383beb0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4716121347edabf17e0dd4328bd4ee3234efd893ca65edfabceccdf383beb0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4716121347edabf17e0dd4328bd4ee3234efd893ca65edfabceccdf383beb0a", kill_on_drop: false }`
[INFO] [stdout] c4716121347edabf17e0dd4328bd4ee3234efd893ca65edfabceccdf383beb0a
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 6c0d7dd87acc82f2f22bb8f8ea3716c4f2f6360ad0307af92451ddedb25dcb7a
[INFO] running `Command { std: "docker" "start" "-a" "6c0d7dd87acc82f2f22bb8f8ea3716c4f2f6360ad0307af92451ddedb25dcb7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbuf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "6c0d7dd87acc82f2f22bb8f8ea3716c4f2f6360ad0307af92451ddedb25dcb7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c0d7dd87acc82f2f22bb8f8ea3716c4f2f6360ad0307af92451ddedb25dcb7a", kill_on_drop: false }`
[INFO] [stdout] 6c0d7dd87acc82f2f22bb8f8ea3716c4f2f6360ad0307af92451ddedb25dcb7a
[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: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] 0dddbb653980a2d902ad98690e7d83a383c3e51038584dea2e6caa0757dfe7cb
[INFO] running `Command { std: "docker" "start" "-a" "0dddbb653980a2d902ad98690e7d83a383c3e51038584dea2e6caa0757dfe7cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbuf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "0dddbb653980a2d902ad98690e7d83a383c3e51038584dea2e6caa0757dfe7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dddbb653980a2d902ad98690e7d83a383c3e51038584dea2e6caa0757dfe7cb", kill_on_drop: false }`
[INFO] [stdout] 0dddbb653980a2d902ad98690e7d83a383c3e51038584dea2e6caa0757dfe7cb
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 472af30312e0df019e599f65e64393772c946f9002be874d6b054f90ca6b9b7f
[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" "472af30312e0df019e599f65e64393772c946f9002be874d6b054f90ca6b9b7f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rbuf-0408ac05fcc5b363
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::buf_len ... ok
[INFO] [stdout] test tests::double_ended_iter ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-b74e4b09797e994a
[INFO] [stdout] test tests::front_back ... ok
[INFO] [stdout] test tests::iter_next ... ok
[INFO] [stdout] test tests::iter_size_hint ... ok
[INFO] [stdout] test tests::buf_index ... 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 1 test
[INFO] [stderr]    Doc-tests rbuf
[INFO] [stdout] test ring_buf_macro ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "472af30312e0df019e599f65e64393772c946f9002be874d6b054f90ca6b9b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "472af30312e0df019e599f65e64393772c946f9002be874d6b054f90ca6b9b7f", kill_on_drop: false }`
[INFO] [stdout] 472af30312e0df019e599f65e64393772c946f9002be874d6b054f90ca6b9b7f
