[INFO] fetching crate metaverse 0.0.1...
[INFO] testing metaverse-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate metaverse 0.0.1 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate metaverse 0.0.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metaverse 0.0.1
[INFO] finished tweaking crates.io crate metaverse 0.0.1
[INFO] tweaked toml for crates.io crate metaverse 0.0.1 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44c3da10c1667011473037764101ddad3117940fff0eb09ceee641c7c41e57f0
[INFO] running `Command { std: "docker" "start" "-a" "44c3da10c1667011473037764101ddad3117940fff0eb09ceee641c7c41e57f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44c3da10c1667011473037764101ddad3117940fff0eb09ceee641c7c41e57f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44c3da10c1667011473037764101ddad3117940fff0eb09ceee641c7c41e57f0", kill_on_drop: false }`
[INFO] [stdout] 44c3da10c1667011473037764101ddad3117940fff0eb09ceee641c7c41e57f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5873a75a8c2355fdb09c0dfd3ba91b0925b8dd16bd55b52733d8494e27df9c56
[INFO] running `Command { std: "docker" "start" "-a" "5873a75a8c2355fdb09c0dfd3ba91b0925b8dd16bd55b52733d8494e27df9c56", kill_on_drop: false }`
[INFO] [stderr]    Compiling metaverse v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]  --> src/utils/placeholder.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     count: i32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "5873a75a8c2355fdb09c0dfd3ba91b0925b8dd16bd55b52733d8494e27df9c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5873a75a8c2355fdb09c0dfd3ba91b0925b8dd16bd55b52733d8494e27df9c56", kill_on_drop: false }`
[INFO] [stdout] 5873a75a8c2355fdb09c0dfd3ba91b0925b8dd16bd55b52733d8494e27df9c56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a1e3a9dab851dd0a9857dfd74e4e6d9acd2666ae6611d37737aff68c97beec1
[INFO] running `Command { std: "docker" "start" "-a" "2a1e3a9dab851dd0a9857dfd74e4e6d9acd2666ae6611d37737aff68c97beec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling metaverse v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]  --> src/utils/placeholder.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     count: i32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]  --> src/utils/placeholder.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     count: i32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "2a1e3a9dab851dd0a9857dfd74e4e6d9acd2666ae6611d37737aff68c97beec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1e3a9dab851dd0a9857dfd74e4e6d9acd2666ae6611d37737aff68c97beec1", kill_on_drop: false }`
[INFO] [stdout] 2a1e3a9dab851dd0a9857dfd74e4e6d9acd2666ae6611d37737aff68c97beec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5e9213d4045d7db14f8d73e631abe8e8a1fc3fb8c8e3731d05a91e503571ee3
[INFO] running `Command { std: "docker" "start" "-a" "e5e9213d4045d7db14f8d73e631abe8e8a1fc3fb8c8e3731d05a91e503571ee3", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `count`
[INFO] [stderr]  --> src/utils/placeholder.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     count: i32,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `metaverse` (lib) generated 1 warning
[INFO] [stderr] warning: `metaverse` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metaverse-49b81337a4f5b64a)
[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 metaverse
[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" "e5e9213d4045d7db14f8d73e631abe8e8a1fc3fb8c8e3731d05a91e503571ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e9213d4045d7db14f8d73e631abe8e8a1fc3fb8c8e3731d05a91e503571ee3", kill_on_drop: false }`
[INFO] [stdout] e5e9213d4045d7db14f8d73e631abe8e8a1fc3fb8c8e3731d05a91e503571ee3