[INFO] fetching crate recursive_reference 0.3.0...
[INFO] testing recursive_reference-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate recursive_reference 0.3.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate recursive_reference 0.3.0 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 recursive_reference 0.3.0
[INFO] finished tweaking crates.io crate recursive_reference 0.3.0
[INFO] tweaked toml for crates.io crate recursive_reference 0.3.0 written to /workspace/builds/worker-52/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 379dd1af37167fe93cb0cc315f35ef730d0e1f1e1c769b4fa39b8539cda199ac
[INFO] running `Command { std: "docker" "start" "-a" "379dd1af37167fe93cb0cc315f35ef730d0e1f1e1c769b4fa39b8539cda199ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "379dd1af37167fe93cb0cc315f35ef730d0e1f1e1c769b4fa39b8539cda199ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "379dd1af37167fe93cb0cc315f35ef730d0e1f1e1c769b4fa39b8539cda199ac", kill_on_drop: false }`
[INFO] [stdout] 379dd1af37167fe93cb0cc315f35ef730d0e1f1e1c769b4fa39b8539cda199ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] d03bd2146fe2c609981abe371201523cd9274ca713ca4963d395faec05dff4b6
[INFO] running `Command { std: "docker" "start" "-a" "d03bd2146fe2c609981abe371201523cd9274ca713ca4963d395faec05dff4b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling recursive_reference v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "d03bd2146fe2c609981abe371201523cd9274ca713ca4963d395faec05dff4b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03bd2146fe2c609981abe371201523cd9274ca713ca4963d395faec05dff4b6", kill_on_drop: false }`
[INFO] [stdout] d03bd2146fe2c609981abe371201523cd9274ca713ca4963d395faec05dff4b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 3c0fc7b22a3cb1ec3f891c6f7af6b8a432da563d200ab91be4bd7aa52a51f13f
[INFO] running `Command { std: "docker" "start" "-a" "3c0fc7b22a3cb1ec3f891c6f7af6b8a432da563d200ab91be4bd7aa52a51f13f", kill_on_drop: false }`
[INFO] [stderr]    Compiling recursive_reference v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "3c0fc7b22a3cb1ec3f891c6f7af6b8a432da563d200ab91be4bd7aa52a51f13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0fc7b22a3cb1ec3f891c6f7af6b8a432da563d200ab91be4bd7aa52a51f13f", kill_on_drop: false }`
[INFO] [stdout] 3c0fc7b22a3cb1ec3f891c6f7af6b8a432da563d200ab91be4bd7aa52a51f13f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 0a5fec9e9e8260bb461f8f9cf1c58cd9109451d6239db321c8c1055905a8e06b
[INFO] running `Command { std: "docker" "start" "-a" "0a5fec9e9e8260bb461f8f9cf1c58cd9109451d6239db321c8c1055905a8e06b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/recursive_reference-bc54864f8c5c22f8)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests recursive_reference
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] test src/lib.rs - (line 74) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.70s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0a5fec9e9e8260bb461f8f9cf1c58cd9109451d6239db321c8c1055905a8e06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5fec9e9e8260bb461f8f9cf1c58cd9109451d6239db321c8c1055905a8e06b", kill_on_drop: false }`
[INFO] [stdout] 0a5fec9e9e8260bb461f8f9cf1c58cd9109451d6239db321c8c1055905a8e06b