[INFO] fetching crate rust-graph 0.0.3...
[INFO] testing rust-graph-0.0.3 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rust-graph 0.0.3 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate rust-graph 0.0.3 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-graph 0.0.3
[INFO] finished tweaking crates.io crate rust-graph 0.0.3
[INFO] tweaked toml for crates.io crate rust-graph 0.0.3 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0054d1c2789f363a9a6ae9a728f3998c05052a75fe85d71f911e52076cac752c
[INFO] running `Command { std: "docker" "start" "-a" "0054d1c2789f363a9a6ae9a728f3998c05052a75fe85d71f911e52076cac752c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0054d1c2789f363a9a6ae9a728f3998c05052a75fe85d71f911e52076cac752c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0054d1c2789f363a9a6ae9a728f3998c05052a75fe85d71f911e52076cac752c", kill_on_drop: false }`
[INFO] [stdout] 0054d1c2789f363a9a6ae9a728f3998c05052a75fe85d71f911e52076cac752c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 269a2833c933a3b6643c879c806311c2207799e49da08c7edd453ff8808703da
[INFO] running `Command { std: "docker" "start" "-a" "269a2833c933a3b6643c879c806311c2207799e49da08c7edd453ff8808703da", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-graph v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/disjoint_set.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             try!(write!(f, "{:?}: ", k));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/disjoint_set.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             try!(write!(f, "\n"))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/disjoint_set.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 try!(write!(f, "{:?}", i));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/algorithms.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn set_weight(&mut self, isize);
[INFO] [stdout]    |                              ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: isize`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `add_node`
[INFO] [stdout]    --> src/graph.rs:272:14
[INFO] [stdout]     |
[INFO] [stdout] 272 | macro_rules! add_node (
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `add_edge`
[INFO] [stdout]    --> src/graph.rs:289:14
[INFO] [stdout]     |
[INFO] [stdout] 289 | macro_rules! add_edge (
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_all` found for mutable reference `&mut Vec<T>` in the current scope
[INFO] [stdout]   --> src/disjoint_set.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |         x_set.push_all(&*y_set);
[INFO] [stdout]    |               ^^^^^^^^ method not found in `&mut Vec<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-graph` due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "269a2833c933a3b6643c879c806311c2207799e49da08c7edd453ff8808703da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "269a2833c933a3b6643c879c806311c2207799e49da08c7edd453ff8808703da", kill_on_drop: false }`
[INFO] [stdout] 269a2833c933a3b6643c879c806311c2207799e49da08c7edd453ff8808703da