[INFO] fetching crate buffer_sv2 0.1.0...
[INFO] testing buffer_sv2-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate buffer_sv2 0.1.0 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate buffer_sv2 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buffer_sv2 0.1.0
[INFO] finished tweaking crates.io crate buffer_sv2 0.1.0
[INFO] tweaked toml for crates.io crate buffer_sv2 0.1.0 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b06613c1dcce6cd517d80c8f71d84bcffca41aefe129e4581a8ae07adae33cec
[INFO] running `Command { std: "docker" "start" "-a" "b06613c1dcce6cd517d80c8f71d84bcffca41aefe129e4581a8ae07adae33cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b06613c1dcce6cd517d80c8f71d84bcffca41aefe129e4581a8ae07adae33cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06613c1dcce6cd517d80c8f71d84bcffca41aefe129e4581a8ae07adae33cec", kill_on_drop: false }`
[INFO] [stdout] b06613c1dcce6cd517d80c8f71d84bcffca41aefe129e4581a8ae07adae33cec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4da4e3317e23b3821b7c726c895bf002702b1d9a5cdd116374d2bc4148f49363
[INFO] running `Command { std: "docker" "start" "-a" "4da4e3317e23b3821b7c726c895bf002702b1d9a5cdd116374d2bc4148f49363", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling buffer_sv2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "4da4e3317e23b3821b7c726c895bf002702b1d9a5cdd116374d2bc4148f49363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da4e3317e23b3821b7c726c895bf002702b1d9a5cdd116374d2bc4148f49363", kill_on_drop: false }`
[INFO] [stdout] 4da4e3317e23b3821b7c726c895bf002702b1d9a5cdd116374d2bc4148f49363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf0ca89844f5a99f880f211871ee74967cd86bff945fd142908fdb8ee86bad8c
[INFO] running `Command { std: "docker" "start" "-a" "cf0ca89844f5a99f880f211871ee74967cd86bff945fd142908fdb8ee86bad8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling iai v0.1.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling buffer_sv2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "cf0ca89844f5a99f880f211871ee74967cd86bff945fd142908fdb8ee86bad8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0ca89844f5a99f880f211871ee74967cd86bff945fd142908fdb8ee86bad8c", kill_on_drop: false }`
[INFO] [stdout] cf0ca89844f5a99f880f211871ee74967cd86bff945fd142908fdb8ee86bad8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 358cd6ceaf555b35f520603b719394e785e180f92959349bf12da1994353501c
[INFO] running `Command { std: "docker" "start" "-a" "358cd6ceaf555b35f520603b719394e785e180f92959349bf12da1994353501c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buffer_sv2-89af67201855e435)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::alloc_more_than_byte_capacity ... ok
[INFO] [stdout] test test::alloc_more_than_pool_capacity ... ok
[INFO] [stdout] test test::back_front_alloc ... ok
[INFO] [stdout] test test::back_alloc_front ... ok
[INFO] [stdout] test test::back_alloc_back ... ok
[INFO] [stdout] test test::back_front_back ... ok
[INFO] [stdout] test test::it_drop ... ok
[INFO] [stdout] test test::pool_capicity_without_alloc ... ok
[INFO] [stdout] test test::test ... ok
[INFO] [stdout] test test::alloc_more_than_byte_capacity_2 - should panic ... ok
[INFO] [stdout] test test::alloc_more_than_pool_capacity_2 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests buffer_sv2
[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" "358cd6ceaf555b35f520603b719394e785e180f92959349bf12da1994353501c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "358cd6ceaf555b35f520603b719394e785e180f92959349bf12da1994353501c", kill_on_drop: false }`
[INFO] [stdout] 358cd6ceaf555b35f520603b719394e785e180f92959349bf12da1994353501c