[INFO] fetching crate wit-walrus 0.6.0...
[INFO] testing wit-walrus-0.6.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wit-walrus 0.6.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate wit-walrus 0.6.0 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 wit-walrus 0.6.0
[INFO] finished tweaking crates.io crate wit-walrus 0.6.0
[INFO] tweaked toml for crates.io crate wit-walrus 0.6.0 written to /workspace/builds/worker-13/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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 23a60cf07e22e74524365b39e79ba9785301cd0f0d3634c4b708ce6cfbf05c19
[INFO] running `Command { std: "docker" "start" "-a" "23a60cf07e22e74524365b39e79ba9785301cd0f0d3634c4b708ce6cfbf05c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23a60cf07e22e74524365b39e79ba9785301cd0f0d3634c4b708ce6cfbf05c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a60cf07e22e74524365b39e79ba9785301cd0f0d3634c4b708ce6cfbf05c19", kill_on_drop: false }`
[INFO] [stdout] 23a60cf07e22e74524365b39e79ba9785301cd0f0d3634c4b708ce6cfbf05c19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 656471d2f3063f7cbe7747db264e21fdf0439b8a8fb348cef27f137107611fb6
[INFO] running `Command { std: "docker" "start" "-a" "656471d2f3063f7cbe7747db264e21fdf0439b8a8fb348cef27f137107611fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling wit-schema-version v0.1.0
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling wasmparser v0.77.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling wit-parser v0.2.0
[INFO] [stderr]    Compiling wit-writer v0.2.0
[INFO] [stderr]    Compiling walrus-macro v0.19.0
[INFO] [stderr]    Compiling walrus v0.19.0
[INFO] [stderr]    Compiling wit-walrus v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.49s
[INFO] running `Command { std: "docker" "inspect" "656471d2f3063f7cbe7747db264e21fdf0439b8a8fb348cef27f137107611fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "656471d2f3063f7cbe7747db264e21fdf0439b8a8fb348cef27f137107611fb6", kill_on_drop: false }`
[INFO] [stdout] 656471d2f3063f7cbe7747db264e21fdf0439b8a8fb348cef27f137107611fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] e7068ebba005bacb270bddd970c7a7f4c597ab0ad7d1bd5614355d344d81245e
[INFO] running `Command { std: "docker" "start" "-a" "e7068ebba005bacb270bddd970c7a7f4c597ab0ad7d1bd5614355d344d81245e", kill_on_drop: false }`
[INFO] [stderr]    Compiling wit-walrus v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "e7068ebba005bacb270bddd970c7a7f4c597ab0ad7d1bd5614355d344d81245e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7068ebba005bacb270bddd970c7a7f4c597ab0ad7d1bd5614355d344d81245e", kill_on_drop: false }`
[INFO] [stdout] e7068ebba005bacb270bddd970c7a7f4c597ab0ad7d1bd5614355d344d81245e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] b1879adf2700cbceac1b48a3124cf160e278ed2c85f789248d34467ab28cd98e
[INFO] running `Command { std: "docker" "start" "-a" "b1879adf2700cbceac1b48a3124cf160e278ed2c85f789248d34467ab28cd98e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wit_walrus-49652122910a0b31)
[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] [stderr]    Doc-tests wit-walrus
[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" "b1879adf2700cbceac1b48a3124cf160e278ed2c85f789248d34467ab28cd98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1879adf2700cbceac1b48a3124cf160e278ed2c85f789248d34467ab28cd98e", kill_on_drop: false }`
[INFO] [stdout] b1879adf2700cbceac1b48a3124cf160e278ed2c85f789248d34467ab28cd98e