[INFO] fetching crate cargo-vs 0.1.0...
[INFO] checking cargo-vs-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate cargo-vs 0.1.0 into /workspace/builds/worker-72/source
[INFO] validating manifest of crates.io crate cargo-vs 0.1.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-vs 0.1.0
[INFO] finished tweaking crates.io crate cargo-vs 0.1.0
[INFO] tweaked toml for crates.io crate cargo-vs 0.1.0 written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] crate crates.io crate cargo-vs 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e63b45c88348377a717aa0982fe7002e03951d5ab635b0563a85521be3c8b57
[INFO] running `Command { std: "docker" "start" "-a" "7e63b45c88348377a717aa0982fe7002e03951d5ab635b0563a85521be3c8b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e63b45c88348377a717aa0982fe7002e03951d5ab635b0563a85521be3c8b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e63b45c88348377a717aa0982fe7002e03951d5ab635b0563a85521be3c8b57", kill_on_drop: false }`
[INFO] [stdout] 7e63b45c88348377a717aa0982fe7002e03951d5ab635b0563a85521be3c8b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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=forbid" "-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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7cd41aebb7f6baf8c1c8867d63ebc1fc4319c4c39cf5aa6c5ce096312648c46
[INFO] running `Command { std: "docker" "start" "-a" "e7cd41aebb7f6baf8c1c8867d63ebc1fc4319c4c39cf5aa6c5ce096312648c46", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking cargo-vs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `toml`
[INFO] [stdout]   --> src/metadata.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub toml:   Option<WorkspaceToml>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `manifest`
[INFO] [stdout]   --> src/metadata.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub manifest:   ManifestRef,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/metadata.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub name:       String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]   --> src/metadata.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub version:    String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `crate_types`
[INFO] [stdout]   --> src/metadata.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub crate_types:    Vec<String>, // "lib", "bin"
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/metadata.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub path:   PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `toml`
[INFO] [stdout]   --> src/metadata.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub toml:   Manifest,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/metadata.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub metadata: Metadata,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `package`
[INFO] [stdout]   --> src/metadata.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub package: Package,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/metadata.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub metadata: Metadata,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/metadata.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub name:           String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]   --> src/metadata.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub version:        String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `repository`
[INFO] [stdout]   --> src/metadata.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub repository:     Option<Url>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `documentation`
[INFO] [stdout]   --> src/metadata.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub documentation:  Option<Url>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `homepage`
[INFO] [stdout]   --> src/metadata.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub homepage:       Option<Url>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]    --> src/metadata.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub metadata:       Metadata,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `local_install`
[INFO] [stdout]    --> src/metadata.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub local_install: Option<de::IgnoredAny>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `toml`
[INFO] [stdout]   --> src/metadata.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub toml:   Option<WorkspaceToml>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `manifest`
[INFO] [stdout]   --> src/metadata.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub manifest:   ManifestRef,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/metadata.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub name:       String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]   --> src/metadata.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub version:    String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `crate_types`
[INFO] [stdout]   --> src/metadata.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub crate_types:    Vec<String>, // "lib", "bin"
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/metadata.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub path:   PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `toml`
[INFO] [stdout]   --> src/metadata.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub toml:   Manifest,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/metadata.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub metadata: Metadata,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `package`
[INFO] [stdout]   --> src/metadata.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub package: Package,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/metadata.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub metadata: Metadata,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/metadata.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub name:           String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]   --> src/metadata.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub version:        String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `repository`
[INFO] [stdout]   --> src/metadata.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub repository:     Option<Url>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `documentation`
[INFO] [stdout]   --> src/metadata.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub documentation:  Option<Url>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `homepage`
[INFO] [stdout]   --> src/metadata.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub homepage:       Option<Url>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]    --> src/metadata.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub metadata:       Metadata,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `local_install`
[INFO] [stdout]    --> src/metadata.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub local_install: Option<de::IgnoredAny>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.01s
[INFO] running `Command { std: "docker" "inspect" "e7cd41aebb7f6baf8c1c8867d63ebc1fc4319c4c39cf5aa6c5ce096312648c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7cd41aebb7f6baf8c1c8867d63ebc1fc4319c4c39cf5aa6c5ce096312648c46", kill_on_drop: false }`
[INFO] [stdout] e7cd41aebb7f6baf8c1c8867d63ebc1fc4319c4c39cf5aa6c5ce096312648c46