[INFO] fetching crate dot-structures 0.1.1...
[INFO] checking dot-structures-0.1.1 against try#0c7fed2b7584d310ca8221267fa1b3bec4df427f for pr-133502-4
[INFO] extracting crate dot-structures 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate dot-structures 0.1.1 on toolchain 0c7fed2b7584d310ca8221267fa1b3bec4df427f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dot-structures 0.1.1
[INFO] finished tweaking crates.io crate dot-structures 0.1.1
[INFO] tweaked toml for crates.io crate dot-structures 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57406b156cc2d453d2fc9957039d9dc6c2a05918587ebbf53f91378fe21a529f
[INFO] running `Command { std: "docker" "start" "-a" "57406b156cc2d453d2fc9957039d9dc6c2a05918587ebbf53f91378fe21a529f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57406b156cc2d453d2fc9957039d9dc6c2a05918587ebbf53f91378fe21a529f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57406b156cc2d453d2fc9957039d9dc6c2a05918587ebbf53f91378fe21a529f", kill_on_drop: false }`
[INFO] [stdout] 57406b156cc2d453d2fc9957039d9dc6c2a05918587ebbf53f91378fe21a529f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0ca0c66163537baeef6177668415da5a3616239d2fa6eea18f8e8da2a4100ad
[INFO] running `Command { std: "docker" "start" "-a" "f0ca0c66163537baeef6177668415da5a3616239d2fa6eea18f8e8da2a4100ad", kill_on_drop: false }`
[INFO] [stderr]     Checking dot-structures v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `add_attr` is never used
[INFO] [stdout]   --> src/lib.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | impl Edge {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 85 |     fn add_attr(&mut self, attr: Attribute) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_attr` is never used
[INFO] [stdout]    --> src/lib.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl Node {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn add_attr(&mut self, attr: Attribute) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_stmt` is never used
[INFO] [stdout]    --> src/lib.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Subgraph {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 162 |     fn add_stmt(&mut self, stmt: Stmt) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_attr` is never used
[INFO] [stdout]   --> src/lib.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | impl Edge {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 85 |     fn add_attr(&mut self, attr: Attribute) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_attr` is never used
[INFO] [stdout]    --> src/lib.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl Node {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn add_attr(&mut self, attr: Attribute) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_stmt` is never used
[INFO] [stdout]    --> src/lib.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Subgraph {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 162 |     fn add_stmt(&mut self, stmt: Stmt) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "f0ca0c66163537baeef6177668415da5a3616239d2fa6eea18f8e8da2a4100ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ca0c66163537baeef6177668415da5a3616239d2fa6eea18f8e8da2a4100ad", kill_on_drop: false }`
[INFO] [stdout] f0ca0c66163537baeef6177668415da5a3616239d2fa6eea18f8e8da2a4100ad