[INFO] crate indextree 4.0.0 is already in cache
[INFO] checking indextree-4.0.0 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] extracting crate indextree 4.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate indextree 4.0.0 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate indextree 4.0.0
[INFO] removed 2 missing examples
[INFO] finished tweaking crates.io crate indextree 4.0.0
[INFO] tweaked toml for crates.io crate indextree 4.0.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a627c7d23cce78350485146385603e2c819734a3e30c25f33952f79bad10e076
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a627c7d23cce78350485146385603e2c819734a3e30c25f33952f79bad10e076"`
[INFO] [stderr]     Checking indextree v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `rayon`
[INFO] [stderr]  --> examples/parallel_iteration.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rayon::prelude::*;
[INFO] [stderr]   |     ^^^^^ use of undeclared type or module `rayon`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `par_iter` found for type `&mut indextree::arena::Arena<{integer}>` in the current scope
[INFO] [stderr]   --> examples/parallel_iteration.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |         .par_iter()
[INFO] [stderr]    |          ^^^^^^^^ method not found in `&mut indextree::arena::Arena<{integer}>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `indextree`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a627c7d23cce78350485146385603e2c819734a3e30c25f33952f79bad10e076"`
[INFO] running `"docker" "rm" "-f" "a627c7d23cce78350485146385603e2c819734a3e30c25f33952f79bad10e076"`
[INFO] [stdout] a627c7d23cce78350485146385603e2c819734a3e30c25f33952f79bad10e076