[INFO] fetching crate dot-structures 0.1.0...
[INFO] testing dot-structures-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate dot-structures 0.1.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate dot-structures 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dot-structures 0.1.0
[INFO] finished tweaking crates.io crate dot-structures 0.1.0
[INFO] tweaked toml for crates.io crate dot-structures 0.1.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58ddea34bc09680df993dbc18256011e20dc95f8fffa46e743e492213d10a603
[INFO] running `Command { std: "docker" "start" "-a" "58ddea34bc09680df993dbc18256011e20dc95f8fffa46e743e492213d10a603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58ddea34bc09680df993dbc18256011e20dc95f8fffa46e743e492213d10a603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58ddea34bc09680df993dbc18256011e20dc95f8fffa46e743e492213d10a603", kill_on_drop: false }`
[INFO] [stdout] 58ddea34bc09680df993dbc18256011e20dc95f8fffa46e743e492213d10a603
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5b5e93c29613a2bd54b99b8793360d75d8ef93d7233309737de7b84f271925e
[INFO] running `Command { std: "docker" "start" "-a" "f5b5e93c29613a2bd54b99b8793360d75d8ef93d7233309737de7b84f271925e", kill_on_drop: false }`
[INFO] [stderr]    Compiling dot-structures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `add_attr`
[INFO] [stdout]   --> src/lib.rs:85:8
[INFO] [stdout]    |
[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: associated function is never used: `add_attr`
[INFO] [stdout]    --> src/lib.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn add_attr(&mut self,attr:Attribute){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_stmt`
[INFO] [stdout]    --> src/lib.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn add_stmt(&mut self,stmt:Stmt){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "f5b5e93c29613a2bd54b99b8793360d75d8ef93d7233309737de7b84f271925e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b5e93c29613a2bd54b99b8793360d75d8ef93d7233309737de7b84f271925e", kill_on_drop: false }`
[INFO] [stdout] f5b5e93c29613a2bd54b99b8793360d75d8ef93d7233309737de7b84f271925e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0985569fb0b5707a45a408863e78c73b8728060a758c47e3cc1843fd24aa13c4
[INFO] running `Command { std: "docker" "start" "-a" "0985569fb0b5707a45a408863e78c73b8728060a758c47e3cc1843fd24aa13c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling dot-structures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `add_attr`
[INFO] [stdout]   --> src/lib.rs:85:8
[INFO] [stdout]    |
[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: associated function is never used: `add_attr`
[INFO] [stdout]    --> src/lib.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn add_attr(&mut self,attr:Attribute){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_stmt`
[INFO] [stdout]    --> src/lib.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn add_stmt(&mut self,stmt:Stmt){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_attr`
[INFO] [stdout]   --> src/lib.rs:85:8
[INFO] [stdout]    |
[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: associated function is never used: `add_attr`
[INFO] [stdout]    --> src/lib.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn add_attr(&mut self,attr:Attribute){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_stmt`
[INFO] [stdout]    --> src/lib.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn add_stmt(&mut self,stmt:Stmt){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "0985569fb0b5707a45a408863e78c73b8728060a758c47e3cc1843fd24aa13c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0985569fb0b5707a45a408863e78c73b8728060a758c47e3cc1843fd24aa13c4", kill_on_drop: false }`
[INFO] [stdout] 0985569fb0b5707a45a408863e78c73b8728060a758c47e3cc1843fd24aa13c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d5d1fb74e2ebfa045c36f41ea70d0da01cbc2f7070ad8a62e7017fcb8a45f7af
[INFO] running `Command { std: "docker" "start" "-a" "d5d1fb74e2ebfa045c36f41ea70d0da01cbc2f7070ad8a62e7017fcb8a45f7af", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `add_attr`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/lib.rs:85:8
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 85 |     fn add_attr(&mut self,attr:Attribute){
[INFO] [stdout] 
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_attr`
[INFO] [stderr]    --> src/lib.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn add_attr(&mut self,attr:Attribute){
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_stmt`
[INFO] [stderr]    --> src/lib.rs:160:8
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn add_stmt(&mut self,stmt:Stmt){
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dot-structures` (lib) generated 3 warnings
[INFO] [stderr] warning: `dot-structures` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dot_structures-119827a7e6509d22)
[INFO] [stderr]    Doc-tests dot-structures
[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" "d5d1fb74e2ebfa045c36f41ea70d0da01cbc2f7070ad8a62e7017fcb8a45f7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d1fb74e2ebfa045c36f41ea70d0da01cbc2f7070ad8a62e7017fcb8a45f7af", kill_on_drop: false }`
[INFO] [stdout] d5d1fb74e2ebfa045c36f41ea70d0da01cbc2f7070ad8a62e7017fcb8a45f7af