[INFO] fetching crate visualize 0.0.1...
[INFO] testing visualize-0.0.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate visualize 0.0.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate visualize 0.0.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate visualize 0.0.1
[INFO] finished tweaking crates.io crate visualize 0.0.1
[INFO] tweaked toml for crates.io crate visualize 0.0.1 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40ca236f0af10f5be676b6766f993b6397734b40c7a57f1d9cb9771c0817acaf
[INFO] running `Command { std: "docker" "start" "-a" "40ca236f0af10f5be676b6766f993b6397734b40c7a57f1d9cb9771c0817acaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40ca236f0af10f5be676b6766f993b6397734b40c7a57f1d9cb9771c0817acaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ca236f0af10f5be676b6766f993b6397734b40c7a57f1d9cb9771c0817acaf", kill_on_drop: false }`
[INFO] [stdout] 40ca236f0af10f5be676b6766f993b6397734b40c7a57f1d9cb9771c0817acaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4796ecdcfedccb22e66e7500e1b4bc2d60833db9c2e3e36da8ce8b945c9a122b
[INFO] running `Command { std: "docker" "start" "-a" "4796ecdcfedccb22e66e7500e1b4bc2d60833db9c2e3e36da8ce8b945c9a122b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling visualize v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.44s
[INFO] running `Command { std: "docker" "inspect" "4796ecdcfedccb22e66e7500e1b4bc2d60833db9c2e3e36da8ce8b945c9a122b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4796ecdcfedccb22e66e7500e1b4bc2d60833db9c2e3e36da8ce8b945c9a122b", kill_on_drop: false }`
[INFO] [stdout] 4796ecdcfedccb22e66e7500e1b4bc2d60833db9c2e3e36da8ce8b945c9a122b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01590bf1d97265e2820f9bf8cc4e4c8469a43cc84ba811597371ca319115079f
[INFO] running `Command { std: "docker" "start" "-a" "01590bf1d97265e2820f9bf8cc4e4c8469a43cc84ba811597371ca319115079f", kill_on_drop: false }`
[INFO] [stderr]    Compiling visualize v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/visualize-7117ed3a77ea801a)
[INFO] running `Command { std: "docker" "inspect" "01590bf1d97265e2820f9bf8cc4e4c8469a43cc84ba811597371ca319115079f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01590bf1d97265e2820f9bf8cc4e4c8469a43cc84ba811597371ca319115079f", kill_on_drop: false }`
[INFO] [stdout] 01590bf1d97265e2820f9bf8cc4e4c8469a43cc84ba811597371ca319115079f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c3daa4f1ff8a0d9de3787b08097a8a0dd89c5c16c8eeb6cdca10365f8adc52f
[INFO] running `Command { std: "docker" "start" "-a" "8c3daa4f1ff8a0d9de3787b08097a8a0dd89c5c16c8eeb6cdca10365f8adc52f", 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 0.88s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/visualize-7117ed3a77ea801a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests visualize
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "8c3daa4f1ff8a0d9de3787b08097a8a0dd89c5c16c8eeb6cdca10365f8adc52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3daa4f1ff8a0d9de3787b08097a8a0dd89c5c16c8eeb6cdca10365f8adc52f", kill_on_drop: false }`
[INFO] [stdout] 8c3daa4f1ff8a0d9de3787b08097a8a0dd89c5c16c8eeb6cdca10365f8adc52f