[INFO] fetching crate membuffer 0.3.0...
[INFO] testing membuffer-0.3.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate membuffer 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate membuffer 0.3.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] f4147ae9c0488dc6ff529a17fbe5e1244340582fa85ec87db256f2b02900c2df
[INFO] running `Command { std: "docker" "start" "-a" "f4147ae9c0488dc6ff529a17fbe5e1244340582fa85ec87db256f2b02900c2df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4147ae9c0488dc6ff529a17fbe5e1244340582fa85ec87db256f2b02900c2df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4147ae9c0488dc6ff529a17fbe5e1244340582fa85ec87db256f2b02900c2df", kill_on_drop: false }`
[INFO] [stdout] f4147ae9c0488dc6ff529a17fbe5e1244340582fa85ec87db256f2b02900c2df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 437a6b549e94956b02b963955ec04cc7e950e26c1a2c7cdcb8eadb136ed82127
[INFO] running `Command { std: "docker" "start" "-a" "437a6b549e94956b02b963955ec04cc7e950e26c1a2c7cdcb8eadb136ed82127", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling membuffer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.83s
[INFO] running `Command { std: "docker" "inspect" "437a6b549e94956b02b963955ec04cc7e950e26c1a2c7cdcb8eadb136ed82127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437a6b549e94956b02b963955ec04cc7e950e26c1a2c7cdcb8eadb136ed82127", kill_on_drop: false }`
[INFO] [stdout] 437a6b549e94956b02b963955ec04cc7e950e26c1a2c7cdcb8eadb136ed82127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df0e045da93ff77ed9414afeb19d5cb93b1baea5962277b4567695b315d0ddcf
[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" "df0e045da93ff77ed9414afeb19d5cb93b1baea5962277b4567695b315d0ddcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling membuffer v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "df0e045da93ff77ed9414afeb19d5cb93b1baea5962277b4567695b315d0ddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0e045da93ff77ed9414afeb19d5cb93b1baea5962277b4567695b315d0ddcf", kill_on_drop: false }`
[INFO] [stdout] df0e045da93ff77ed9414afeb19d5cb93b1baea5962277b4567695b315d0ddcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 418f12045bb6e75e51c46226bc7ef54b3f6b8ace1a6a5ae7cd1cfd491a62679d
[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" "418f12045bb6e75e51c46226bc7ef54b3f6b8ace1a6a5ae7cd1cfd491a62679d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/membuffer-fb42f307cb42b7fb)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::check_enum_usage ... ok
[INFO] [stdout] test tests::check_mem_shift ... ok
[INFO] [stdout] test tests::check_payload_len ... ok
[INFO] [stdout] test tests::check_empty ... ok
[INFO] [stdout] test tests::check_type_error ... ok
[INFO] [stdout] test tests::check_recursive_readers ... ok
[INFO] [stdout] test tests::check_serde_capability ... ok
[INFO] [stdout] test tests::check_serialize_i32_deserialize ... ok
[INFO] [stdout] test tests::check_serialize_vecu64_deserialize ... ok
[INFO] [stdout] test tests::corrupt_length ... ok
[INFO] [stdout] test tests::check_serialize_vecu8_deserialize ... ok
[INFO] [stdout] test tests::check_slice_too_small ... ok
[INFO] [stdout] test tests::check_reload_writer_from_mem ... ok
[INFO] [stdout] test tests::check_serialize_string_deserialize ... ok
[INFO] [stdout] test tests::check_read_attributes ... ok
[INFO] [stdout] test tests::check_type_ids ... ok
[INFO] [stdout] test tests::check_len ... 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 0.05s
[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 - MemBufferReader (line 146) ... ok
[INFO] [stdout] test src/lib.rs - MemBufferWriter::from (line 328) ... 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 1.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "418f12045bb6e75e51c46226bc7ef54b3f6b8ace1a6a5ae7cd1cfd491a62679d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "418f12045bb6e75e51c46226bc7ef54b3f6b8ace1a6a5ae7cd1cfd491a62679d", kill_on_drop: false }`
[INFO] [stdout] 418f12045bb6e75e51c46226bc7ef54b3f6b8ace1a6a5ae7cd1cfd491a62679d