[INFO] fetching crate xi-rope 0.3.0...
[INFO] checking xi-rope-0.3.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate xi-rope 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate xi-rope 0.3.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xi-rope 0.3.0
[INFO] finished tweaking crates.io crate xi-rope 0.3.0
[INFO] tweaked toml for crates.io crate xi-rope 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f8e5639625c571eec791ecb357b4c09f5fb2b1977ebeb97413624211081a794
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f8e5639625c571eec791ecb357b4c09f5fb2b1977ebeb97413624211081a794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f8e5639625c571eec791ecb357b4c09f5fb2b1977ebeb97413624211081a794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8e5639625c571eec791ecb357b4c09f5fb2b1977ebeb97413624211081a794", kill_on_drop: false }`
[INFO] [stdout] 9f8e5639625c571eec791ecb357b4c09f5fb2b1977ebeb97413624211081a794
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9364025f9250566603ddedf3ca43b27d95d0d03a726d08ac50cd66976ba3759e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9364025f9250566603ddedf3ca43b27d95d0d03a726d08ac50cd66976ba3759e", kill_on_drop: false }`
[INFO] [stderr]     Checking bytecount v0.5.1
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking serde_test v1.0.123
[INFO] [stderr]     Checking xi-rope v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tree.rs:658:52
[INFO] [stdout]     |
[INFO] [stdout] 658 |     pub fn prev<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tree.rs:695:52
[INFO] [stdout]     |
[INFO] [stdout] 695 |     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tree.rs:658:52
[INFO] [stdout]     |
[INFO] [stdout] 658 |     pub fn prev<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tree.rs:695:52
[INFO] [stdout]     |
[INFO] [stdout] 695 |     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read benches/../../core-lib/src/editor.rs: No such file or directory (os error 2)
[INFO] [stdout]   --> benches/diff.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 | static EDITOR_STR: &str = include_str!("../../core-lib/src/editor.rs");
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read benches/../../core-lib/src/view.rs: No such file or directory (os error 2)
[INFO] [stdout]   --> benches/diff.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 | static VIEW_STR: &str = include_str!("../../core-lib/src/view.rs");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xi-rope`
[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] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9364025f9250566603ddedf3ca43b27d95d0d03a726d08ac50cd66976ba3759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9364025f9250566603ddedf3ca43b27d95d0d03a726d08ac50cd66976ba3759e", kill_on_drop: false }`
[INFO] [stdout] 9364025f9250566603ddedf3ca43b27d95d0d03a726d08ac50cd66976ba3759e