[INFO] fetching crate cargo-vsc 0.1.0...
[INFO] checking cargo-vsc-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate cargo-vsc 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cargo-vsc 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-vsc 0.1.0
[INFO] finished tweaking crates.io crate cargo-vsc 0.1.0
[INFO] tweaked toml for crates.io crate cargo-vsc 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate cargo-vsc 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e8081cc48d5727062727f2a3e561bc4c56dda89cbd1a61351ec9bc326f0faa7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3e8081cc48d5727062727f2a3e561bc4c56dda89cbd1a61351ec9bc326f0faa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e8081cc48d5727062727f2a3e561bc4c56dda89cbd1a61351ec9bc326f0faa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e8081cc48d5727062727f2a3e561bc4c56dda89cbd1a61351ec9bc326f0faa7", kill_on_drop: false }`
[INFO] [stdout] 3e8081cc48d5727062727f2a3e561bc4c56dda89cbd1a61351ec9bc326f0faa7
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e87457894e23d7782d46425b7fb6c6d83adc2ff7216900b7b2d6c884d3bfca94
[INFO] running `Command { std: "docker" "start" "-a" "e87457894e23d7782d46425b7fb6c6d83adc2ff7216900b7b2d6c884d3bfca94", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking cargo-vsc v0.1.0 (/opt/rustwide/workdir)
[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]    = note: `#[warn(dead_code)]` on by default
[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: `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: `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: 7 warnings emitted
[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]    = note: `#[warn(dead_code)]` on by default
[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: `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: `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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.21s
[INFO] running `Command { std: "docker" "inspect" "e87457894e23d7782d46425b7fb6c6d83adc2ff7216900b7b2d6c884d3bfca94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87457894e23d7782d46425b7fb6c6d83adc2ff7216900b7b2d6c884d3bfca94", kill_on_drop: false }`
[INFO] [stdout] e87457894e23d7782d46425b7fb6c6d83adc2ff7216900b7b2d6c884d3bfca94