[INFO] fetching crate cargo-vsc 0.1.0...
[INFO] checking cargo-vsc-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate cargo-vsc 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate cargo-vsc 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-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-49/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" "+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-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] 5977f6ac067126973c92b77d21b6c23bc191600adc173abdea9e34426baa7e6a
[INFO] running `Command { std: "docker" "start" "-a" "5977f6ac067126973c92b77d21b6c23bc191600adc173abdea9e34426baa7e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5977f6ac067126973c92b77d21b6c23bc191600adc173abdea9e34426baa7e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5977f6ac067126973c92b77d21b6c23bc191600adc173abdea9e34426baa7e6a", kill_on_drop: false }`
[INFO] [stdout] 5977f6ac067126973c92b77d21b6c23bc191600adc173abdea9e34426baa7e6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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] ea55ed5844420902583534e0d30ff1ffc3cd2eb304c9f2ce8c0aa5272b320280
[INFO] running `Command { std: "docker" "start" "-a" "ea55ed5844420902583534e0d30ff1ffc3cd2eb304c9f2ce8c0aa5272b320280", 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]    Compiling quote v1.0.7
[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: 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: 7 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.66s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ea55ed5844420902583534e0d30ff1ffc3cd2eb304c9f2ce8c0aa5272b320280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea55ed5844420902583534e0d30ff1ffc3cd2eb304c9f2ce8c0aa5272b320280", kill_on_drop: false }`
[INFO] [stdout] ea55ed5844420902583534e0d30ff1ffc3cd2eb304c9f2ce8c0aa5272b320280