[INFO] fetching crate membuffer 0.3.0...
[INFO] testing membuffer-0.3.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate membuffer 0.3.0 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate membuffer 0.3.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate membuffer 0.3.0
[INFO] finished tweaking crates.io crate membuffer 0.3.0
[INFO] tweaked toml for crates.io crate membuffer 0.3.0 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ffa11a7feb4d5272de8c4e168a045cafc99f884cf59da1a902847ed25bea2a
[INFO] running `Command { std: "docker" "start" "-a" "37ffa11a7feb4d5272de8c4e168a045cafc99f884cf59da1a902847ed25bea2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ffa11a7feb4d5272de8c4e168a045cafc99f884cf59da1a902847ed25bea2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ffa11a7feb4d5272de8c4e168a045cafc99f884cf59da1a902847ed25bea2a", kill_on_drop: false }`
[INFO] [stdout] 37ffa11a7feb4d5272de8c4e168a045cafc99f884cf59da1a902847ed25bea2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 574563c864ab31cef805b2a514ad6707ed5d4918ad07609e4f9dbb4a6933f991
[INFO] running `Command { std: "docker" "start" "-a" "574563c864ab31cef805b2a514ad6707ed5d4918ad07609e4f9dbb4a6933f991", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling membuffer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.30s
[INFO] running `Command { std: "docker" "inspect" "574563c864ab31cef805b2a514ad6707ed5d4918ad07609e4f9dbb4a6933f991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "574563c864ab31cef805b2a514ad6707ed5d4918ad07609e4f9dbb4a6933f991", kill_on_drop: false }`
[INFO] [stdout] 574563c864ab31cef805b2a514ad6707ed5d4918ad07609e4f9dbb4a6933f991
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98a10bf967c4f8dd54356cb27058ac607c54612fe61a43c17374bb410235bf3d
[INFO] running `Command { std: "docker" "start" "-a" "98a10bf967c4f8dd54356cb27058ac607c54612fe61a43c17374bb410235bf3d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling membuffer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `Command { std: "docker" "inspect" "98a10bf967c4f8dd54356cb27058ac607c54612fe61a43c17374bb410235bf3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a10bf967c4f8dd54356cb27058ac607c54612fe61a43c17374bb410235bf3d", kill_on_drop: false }`
[INFO] [stdout] 98a10bf967c4f8dd54356cb27058ac607c54612fe61a43c17374bb410235bf3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 630615c52cb4e67ebcecaf4bdd56e7fff7c6384abaa5af2ddac879b23f3124a6
[INFO] running `Command { std: "docker" "start" "-a" "630615c52cb4e67ebcecaf4bdd56e7fff7c6384abaa5af2ddac879b23f3124a6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/membuffer-975df310ca35def2)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::check_enum_usage ... ok
[INFO] [stdout] test tests::check_len ... ok
[INFO] [stdout] test tests::check_empty ... ok
[INFO] [stdout] test tests::check_payload_len ... ok
[INFO] [stdout] test tests::check_mem_shift ... ok
[INFO] [stdout] test tests::check_read_attributes ... ok
[INFO] [stdout] test tests::check_reload_writer_from_mem ... ok
[INFO] [stdout] test tests::check_type_ids ... ok
[INFO] [stdout] test tests::check_type_error ... ok
[INFO] [stdout] test tests::check_serialize_i32_deserialize ... ok
[INFO] [stdout] test tests::check_recursive_readers ... ok
[INFO] [stdout] test tests::check_serialize_vecu64_deserialize ... ok
[INFO] [stdout] test tests::check_slice_too_small ... ok
[INFO] [stdout] test tests::check_serde_capability ... ok
[INFO] [stdout] test tests::check_serialize_vecu8_deserialize ... ok
[INFO] [stdout] test tests::check_serialize_string_deserialize ... ok
[INFO] [stdout] test tests::corrupt_length ... ok
[INFO] [stdout] test tests::check_wrong_key - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests membuffer
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - MemBufferTypes (line 50) ... ok
[INFO] [stdout] test src/lib.rs - MemBufferWriter::from (line 328) ... ok
[INFO] [stdout] test src/lib.rs - MemBufferReader (line 146) ... ok
[INFO] [stdout] test src/lib.rs - Position (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "630615c52cb4e67ebcecaf4bdd56e7fff7c6384abaa5af2ddac879b23f3124a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630615c52cb4e67ebcecaf4bdd56e7fff7c6384abaa5af2ddac879b23f3124a6", kill_on_drop: false }`
[INFO] [stdout] 630615c52cb4e67ebcecaf4bdd56e7fff7c6384abaa5af2ddac879b23f3124a6