[INFO] fetching crate dot-structures 0.1.0...
[INFO] testing dot-structures-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate dot-structures 0.1.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate dot-structures 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57e1b49f3d9cfd48b54c9c2f51a8f2e1d9cf7a46510d9adaacde0a38a55def3e
[INFO] running `Command { std: "docker" "start" "-a" "57e1b49f3d9cfd48b54c9c2f51a8f2e1d9cf7a46510d9adaacde0a38a55def3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57e1b49f3d9cfd48b54c9c2f51a8f2e1d9cf7a46510d9adaacde0a38a55def3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e1b49f3d9cfd48b54c9c2f51a8f2e1d9cf7a46510d9adaacde0a38a55def3e", kill_on_drop: false }`
[INFO] [stdout] 57e1b49f3d9cfd48b54c9c2f51a8f2e1d9cf7a46510d9adaacde0a38a55def3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c504fa6df05a52f3256509d39f2997d8a281409b0e2dccf4e98c191a1e1c4b4b
[INFO] running `Command { std: "docker" "start" "-a" "c504fa6df05a52f3256509d39f2997d8a281409b0e2dccf4e98c191a1e1c4b4b", 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 0.25s
[INFO] running `Command { std: "docker" "inspect" "c504fa6df05a52f3256509d39f2997d8a281409b0e2dccf4e98c191a1e1c4b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c504fa6df05a52f3256509d39f2997d8a281409b0e2dccf4e98c191a1e1c4b4b", kill_on_drop: false }`
[INFO] [stdout] c504fa6df05a52f3256509d39f2997d8a281409b0e2dccf4e98c191a1e1c4b4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f46819ea07e3ffd6719374404ac32cef3a04229f09022bfb5c98e57a7f77d100
[INFO] running `Command { std: "docker" "start" "-a" "f46819ea07e3ffd6719374404ac32cef3a04229f09022bfb5c98e57a7f77d100", kill_on_drop: false }`
[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] [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: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 0.38s
[INFO] running `Command { std: "docker" "inspect" "f46819ea07e3ffd6719374404ac32cef3a04229f09022bfb5c98e57a7f77d100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46819ea07e3ffd6719374404ac32cef3a04229f09022bfb5c98e57a7f77d100", kill_on_drop: false }`
[INFO] [stdout] f46819ea07e3ffd6719374404ac32cef3a04229f09022bfb5c98e57a7f77d100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b18e9f2b0c4226bb8a99947cb11c7f41670953b6b5eb4825377c4b65d37206d0
[INFO] running `Command { std: "docker" "start" "-a" "b18e9f2b0c4226bb8a99947cb11c7f41670953b6b5eb4825377c4b65d37206d0", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `add_attr`
[INFO] [stderr]   --> src/lib.rs:85:8
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn add_attr(&mut self,attr:Attribute){
[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-974d463973315988)
[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] [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" "b18e9f2b0c4226bb8a99947cb11c7f41670953b6b5eb4825377c4b65d37206d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b18e9f2b0c4226bb8a99947cb11c7f41670953b6b5eb4825377c4b65d37206d0", kill_on_drop: false }`
[INFO] [stdout] b18e9f2b0c4226bb8a99947cb11c7f41670953b6b5eb4825377c4b65d37206d0