[INFO] fetching crate rust_mvc 0.1.1...
[INFO] testing rust_mvc-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rust_mvc 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rust_mvc 0.1.1 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 rust_mvc 0.1.1
[INFO] finished tweaking crates.io crate rust_mvc 0.1.1
[INFO] tweaked toml for crates.io crate rust_mvc 0.1.1 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d81e8ecedbbf6989b7617d79587e150ab620a16bdd14b208d808924a808f0201
[INFO] running `Command { std: "docker" "start" "-a" "d81e8ecedbbf6989b7617d79587e150ab620a16bdd14b208d808924a808f0201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d81e8ecedbbf6989b7617d79587e150ab620a16bdd14b208d808924a808f0201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81e8ecedbbf6989b7617d79587e150ab620a16bdd14b208d808924a808f0201", kill_on_drop: false }`
[INFO] [stdout] d81e8ecedbbf6989b7617d79587e150ab620a16bdd14b208d808924a808f0201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 6f10e213cdb119e1c71f969b29150da1a44a41d253488ad792546b3630493ec3
[INFO] running `Command { std: "docker" "start" "-a" "6f10e213cdb119e1c71f969b29150da1a44a41d253488ad792546b3630493ec3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_mvc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "6f10e213cdb119e1c71f969b29150da1a44a41d253488ad792546b3630493ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f10e213cdb119e1c71f969b29150da1a44a41d253488ad792546b3630493ec3", kill_on_drop: false }`
[INFO] [stdout] 6f10e213cdb119e1c71f969b29150da1a44a41d253488ad792546b3630493ec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] bd21d0ef9bbe3cae8b5f48a02ed23dac1bc1f151088924b0329c00698cb23caa
[INFO] running `Command { std: "docker" "start" "-a" "bd21d0ef9bbe3cae8b5f48a02ed23dac1bc1f151088924b0329c00698cb23caa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_mvc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "bd21d0ef9bbe3cae8b5f48a02ed23dac1bc1f151088924b0329c00698cb23caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd21d0ef9bbe3cae8b5f48a02ed23dac1bc1f151088924b0329c00698cb23caa", kill_on_drop: false }`
[INFO] [stdout] bd21d0ef9bbe3cae8b5f48a02ed23dac1bc1f151088924b0329c00698cb23caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 2c6bfa12921955949ec1c666afaf89d810c357c53588cee56ebb74744ed5b41d
[INFO] running `Command { std: "docker" "start" "-a" "2c6bfa12921955949ec1c666afaf89d810c357c53588cee56ebb74744ed5b41d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_mvc-4d6d295db53367d5)
[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 rust_mvc
[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" "2c6bfa12921955949ec1c666afaf89d810c357c53588cee56ebb74744ed5b41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6bfa12921955949ec1c666afaf89d810c357c53588cee56ebb74744ed5b41d", kill_on_drop: false }`
[INFO] [stdout] 2c6bfa12921955949ec1c666afaf89d810c357c53588cee56ebb74744ed5b41d