[INFO] crate rust-graph 0.0.3 is already in cache
[INFO] checking rust-graph-0.0.3 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate rust-graph 0.0.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rust-graph 0.0.3 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ee967a25aca691fefc37a154a7f16fbf32aa67a174d41d9e72a6aed6bca3c86
[INFO] running `"docker" "start" "-a" "1ee967a25aca691fefc37a154a7f16fbf32aa67a174d41d9e72a6aed6bca3c86"`
[INFO] [stderr]     Checking rust-graph v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/disjoint_set.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{:?}: ", k));
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/disjoint_set.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(write!(f, "{:?}", i));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/disjoint_set.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             try!(write!(f, "\n"))
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/graph.rs:272:1
[INFO] [stderr]     |
[INFO] [stderr] 272 | / macro_rules! add_node (
[INFO] [stderr] 273 | |     ($m:ident, $adj:ident, $g:ident, $n:expr, $p:expr) => ({
[INFO] [stderr] 274 | |         if !$m.contains_key(&$n) {
[INFO] [stderr] 275 | |             $adj.insert($n, Vec::new());
[INFO] [stderr] ...   |
[INFO] [stderr] 286 | |     })
[INFO] [stderr] 287 | | );
[INFO] [stderr]     | |__^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/graph.rs:289:1
[INFO] [stderr]     |
[INFO] [stderr] 289 | / macro_rules! add_edge (
[INFO] [stderr] 290 | |     ($em:ident, $nm: ident, $adj:ident, $g:ident, $f:expr, $t:expr,
[INFO] [stderr] 291 | |      $p:expr) => ({
[INFO] [stderr] 292 | |         if !$nm.contains_key(&$f) {
[INFO] [stderr] ...   |
[INFO] [stderr] 316 | |     })
[INFO] [stderr] 317 | | );
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/disjoint_set.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             try!(write!(f, "{:?}: ", k));
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/disjoint_set.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(write!(f, "{:?}", i));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/disjoint_set.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             try!(write!(f, "\n"))
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `push_all` found for mutable reference `&mut std::vec::Vec<T>` in the current scope
[INFO] [stderr]   --> src/disjoint_set.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 |         x_set.push_all(&*y_set);
[INFO] [stderr]    |               ^^^^^^^^ method not found in `&mut std::vec::Vec<T>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `push_all` found for mutable reference `&mut std::vec::Vec<T>` in the current scope
[INFO] [stderr]   --> src/disjoint_set.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 |         x_set.push_all(&*y_set);
[INFO] [stderr]    |               ^^^^^^^^ method not found in `&mut std::vec::Vec<T>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rust-graph`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rust-graph`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1ee967a25aca691fefc37a154a7f16fbf32aa67a174d41d9e72a6aed6bca3c86"`
[INFO] running `"docker" "rm" "-f" "1ee967a25aca691fefc37a154a7f16fbf32aa67a174d41d9e72a6aed6bca3c86"`
[INFO] [stdout] 1ee967a25aca691fefc37a154a7f16fbf32aa67a174d41d9e72a6aed6bca3c86