[INFO] fetching crate rbuf 0.1.3...
[INFO] testing rbuf-0.1.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate rbuf 0.1.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rbuf 0.1.3 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rbuf 0.1.3
[INFO] finished tweaking crates.io crate rbuf 0.1.3
[INFO] tweaked toml for crates.io crate rbuf 0.1.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3ae6aaf4176d2537d8f7094303f4b925ceba20b19af85b2992a8df42b60d4dc
[INFO] running `Command { std: "docker" "start" "-a" "d3ae6aaf4176d2537d8f7094303f4b925ceba20b19af85b2992a8df42b60d4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3ae6aaf4176d2537d8f7094303f4b925ceba20b19af85b2992a8df42b60d4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ae6aaf4176d2537d8f7094303f4b925ceba20b19af85b2992a8df42b60d4dc", kill_on_drop: false }`
[INFO] [stdout] d3ae6aaf4176d2537d8f7094303f4b925ceba20b19af85b2992a8df42b60d4dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bfb3d5ccaa24efdd726415bcd141844664e77c7534df1b71158cb1970ea8b57
[INFO] running `Command { std: "docker" "start" "-a" "0bfb3d5ccaa24efdd726415bcd141844664e77c7534df1b71158cb1970ea8b57", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbuf v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "0bfb3d5ccaa24efdd726415bcd141844664e77c7534df1b71158cb1970ea8b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bfb3d5ccaa24efdd726415bcd141844664e77c7534df1b71158cb1970ea8b57", kill_on_drop: false }`
[INFO] [stdout] 0bfb3d5ccaa24efdd726415bcd141844664e77c7534df1b71158cb1970ea8b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b82ff9cd22a55974ac448d5329a4c656464f620418ad39882f109dd6c203737
[INFO] running `Command { std: "docker" "start" "-a" "0b82ff9cd22a55974ac448d5329a4c656464f620418ad39882f109dd6c203737", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbuf v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "0b82ff9cd22a55974ac448d5329a4c656464f620418ad39882f109dd6c203737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b82ff9cd22a55974ac448d5329a4c656464f620418ad39882f109dd6c203737", kill_on_drop: false }`
[INFO] [stdout] 0b82ff9cd22a55974ac448d5329a4c656464f620418ad39882f109dd6c203737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be54581e4286bdb7e1177b86c3a71d282ae3e14ce4c2fe47794a1c86b4bb216b
[INFO] running `Command { std: "docker" "start" "-a" "be54581e4286bdb7e1177b86c3a71d282ae3e14ce4c2fe47794a1c86b4bb216b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rbuf-a69beca4ae394d57)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-e30c1388b5e3acd7)
[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 11 tests
[INFO] [stdout] test boxed_slice ... ok
[INFO] [stdout] test buf_index ... ok
[INFO] [stdout] test buf_len ... ok
[INFO] [stdout] test double_ended_iter ... ok
[INFO] [stdout] test front_back ... ok
[INFO] [stdout] test front_back_mut ... ok
[INFO] [stdout] test iter_next ... ok
[INFO] [stdout] test iter_size_hint ... ok
[INFO] [stdout] test mutating_iter ... ok
[INFO] [stdout] test ring_buf_macro ... ok
[INFO] [stdout] test no_mutable_iterator_with_zst - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rbuf
[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" "be54581e4286bdb7e1177b86c3a71d282ae3e14ce4c2fe47794a1c86b4bb216b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be54581e4286bdb7e1177b86c3a71d282ae3e14ce4c2fe47794a1c86b4bb216b", kill_on_drop: false }`
[INFO] [stdout] be54581e4286bdb7e1177b86c3a71d282ae3e14ce4c2fe47794a1c86b4bb216b