[INFO] fetching crate postcard 0.7.2...
[INFO] testing postcard-0.7.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate postcard 0.7.2 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate postcard 0.7.2 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 postcard 0.7.2
[INFO] finished tweaking crates.io crate postcard 0.7.2
[INFO] tweaked toml for crates.io crate postcard 0.7.2 written to /workspace/builds/worker-80/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded postcard-cobs v0.1.5-pre
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.3
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded heapless v0.7.5
[INFO] [stderr]   Downloaded embedded-hal v0.2.6
[INFO] [stderr]   Downloaded cortex-m v0.7.3
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 01620adc02f64eefd3e9237415bf216a7437b40931fc43c296ebaf6e3442d842
[INFO] running `Command { std: "docker" "start" "-a" "01620adc02f64eefd3e9237415bf216a7437b40931fc43c296ebaf6e3442d842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01620adc02f64eefd3e9237415bf216a7437b40931fc43c296ebaf6e3442d842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01620adc02f64eefd3e9237415bf216a7437b40931fc43c296ebaf6e3442d842", kill_on_drop: false }`
[INFO] [stdout] 01620adc02f64eefd3e9237415bf216a7437b40931fc43c296ebaf6e3442d842
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 5a6f880de47c634ee0f6a70640353230313483766439b7256a1074cd26ce402c
[INFO] running `Command { std: "docker" "start" "-a" "5a6f880de47c634ee0f6a70640353230313483766439b7256a1074cd26ce402c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling heapless v0.7.5
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling postcard v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.79s
[INFO] running `Command { std: "docker" "inspect" "5a6f880de47c634ee0f6a70640353230313483766439b7256a1074cd26ce402c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a6f880de47c634ee0f6a70640353230313483766439b7256a1074cd26ce402c", kill_on_drop: false }`
[INFO] [stdout] 5a6f880de47c634ee0f6a70640353230313483766439b7256a1074cd26ce402c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 1da50100e19e88a8b544d2b6f3eacf96a39600eb15956f6d8e10d65b089f957d
[INFO] running `Command { std: "docker" "start" "-a" "1da50100e19e88a8b544d2b6f3eacf96a39600eb15956f6d8e10d65b089f957d", kill_on_drop: false }`
[INFO] [stderr]    Compiling postcard v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "1da50100e19e88a8b544d2b6f3eacf96a39600eb15956f6d8e10d65b089f957d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1da50100e19e88a8b544d2b6f3eacf96a39600eb15956f6d8e10d65b089f957d", kill_on_drop: false }`
[INFO] [stdout] 1da50100e19e88a8b544d2b6f3eacf96a39600eb15956f6d8e10d65b089f957d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] c1f68ec7399a9d78fd8e633d76a2e187cc40092d1ec3bb2000f98c47c1817db9
[INFO] running `Command { std: "docker" "start" "-a" "c1f68ec7399a9d78fd8e633d76a2e187cc40092d1ec3bb2000f98c47c1817db9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stdout] running 35 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/postcard-a9f8e9b61a663622)
[INFO] [stdout] test de::test_heapless::cobs_test ... ok
[INFO] [stderr]      Running tests/accumulator.rs (/opt/rustwide/target/debug/deps/accumulator-a91322e57c60eb6e)
[INFO] [stdout] test accumulator::loop_test ... ok
[INFO] [stdout] test de::test_heapless::de_u128 ... ok
[INFO] [stdout] test de::test_heapless::bytes ... ok
[INFO] [stdout] test de::test_heapless::de_u16 ... ok
[INFO] [stdout] test de::test_heapless::de_struct_unsigned ... ok
[INFO] [stdout] test de::test_heapless::chars ... ok
[INFO] [stdout] test de::test_heapless::de_str ... ok
[INFO] [stdout] test de::test_heapless::de_byte_slice ... ok
[INFO] [stdout] test de::test_heapless::de_u32 ... ok
[INFO] [stdout] test de::test_heapless::de_u64 ... ok
[INFO] [stdout] test de::test_heapless::de_u8 ... ok
[INFO] [stdout] test de::test_heapless::enums ... ok
[INFO] [stdout] test de::test_heapless::heapless_data ... ok
[INFO] [stdout] test de::test_heapless::ref_struct ... ok
[INFO] [stdout] test de::test_heapless::tuples ... ok
[INFO] [stdout] test de::test_heapless::unit ... ok
[INFO] [stdout] test ser::test::bytes ... ok
[INFO] [stdout] test ser::test::cobs_test ... ok
[INFO] [stdout] test ser::test::heapless_data ... ok
[INFO] [stdout] test ser::test::ref_struct ... ok
[INFO] [stdout] test ser::test::ser_u32 ... ok
[INFO] [stdout] test ser::test::ser_byte_slice ... ok
[INFO] [stdout] test de::test_heapless::structs ... ok
[INFO] [stdout] test ser::test::ser_u64 ... ok
[INFO] [stdout] test ser::test::ser_u8 ... ok
[INFO] [stdout] test ser::test::ser_u128 ... ok
[INFO] [stdout] test ser::test::enums ... ok
[INFO] [stdout] test ser::test::tuples ... ok
[INFO] [stdout] test ser::test::ser_str ... ok
[INFO] [stdout] test ser::test::ser_struct_unsigned ... ok
[INFO] [stdout] test ser::test::structs ... ok
[INFO] [stdout] test ser::test::ser_u16 ... ok
[INFO] [stdout] test ser::test::unit ... ok
[INFO] [stdout] test ser::test::usize_varint_encode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/loopback.rs (/opt/rustwide/target/debug/deps/loopback-2ae12085aeb72f9c)
[INFO] [stdout] test reader ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test loopback ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests postcard
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - (line 78) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::to_slice_cobs (line 36) ... ok
[INFO] [stdout] test src/ser/flavors.rs - ser::flavors (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::to_vec (line 138) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::to_slice (line 73) ... ok
[INFO] [stdout] test src/ser/flavors.rs - ser::flavors (line 56) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::serialize_with_flavor (line 269) ... ok
[INFO] [stdout] test src/accumulator.rs - accumulator::CobsAccumulator (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 125) ... ok
[INFO] [stdout] test src/ser/mod.rs - ser::to_vec_cobs (line 105) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1f68ec7399a9d78fd8e633d76a2e187cc40092d1ec3bb2000f98c47c1817db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f68ec7399a9d78fd8e633d76a2e187cc40092d1ec3bb2000f98c47c1817db9", kill_on_drop: false }`
[INFO] [stdout] c1f68ec7399a9d78fd8e633d76a2e187cc40092d1ec3bb2000f98c47c1817db9