[INFO] updating cached repository https://github.com/chucksmash/hejmo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 86a850454cbbcaa9d943bfe334b3a124875c4802
[INFO] checking chucksmash/hejmo against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchucksmash%2Fhejmo" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chucksmash/hejmo on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chucksmash/hejmo
[INFO] finished tweaking git repo https://github.com/chucksmash/hejmo
[INFO] tweaked toml for git repo https://github.com/chucksmash/hejmo written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/chucksmash/hejmo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 1ee264886025fb9b0d91f9c7a9e02e1eb9d0018f9ddf7bd66abe0cfca6c43095
[INFO] running `"docker" "start" "-a" "1ee264886025fb9b0d91f9c7a9e02e1eb9d0018f9ddf7bd66abe0cfca6c43095"`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking bytecount v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking hejmo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/rope/tree.rs:535:52
[INFO] [stderr]     |
[INFO] [stderr] 535 |     pub fn prev<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stderr]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/rope/tree.rs:585:52
[INFO] [stderr]     |
[INFO] [stderr] 585 |     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stderr]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/rope/tree.rs:535:52
[INFO] [stderr]     |
[INFO] [stderr] 535 |     pub fn prev<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stderr]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/rope/tree.rs:585:52
[INFO] [stderr]     |
[INFO] [stderr] 585 |     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stderr]     |                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/document.rs:76:33
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 Delta::Delete { text, pos } => {
[INFO] [stderr]    |                                 ^^^^ help: try ignoring the field: `text: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/document.rs:93:33
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 Delta::Delete { text, pos } => {
[INFO] [stderr]    |                                 ^^^^ help: try ignoring the field: `text: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/document.rs:76:33
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 Delta::Delete { text, pos } => {
[INFO] [stderr]    |                                 ^^^^ help: try ignoring the field: `text: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/document.rs:93:33
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 Delta::Delete { text, pos } => {
[INFO] [stderr]    |                                 ^^^^ help: try ignoring the field: `text: _`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.12s
[INFO] running `"docker" "inspect" "1ee264886025fb9b0d91f9c7a9e02e1eb9d0018f9ddf7bd66abe0cfca6c43095"`
[INFO] running `"docker" "rm" "-f" "1ee264886025fb9b0d91f9c7a9e02e1eb9d0018f9ddf7bd66abe0cfca6c43095"`
[INFO] [stdout] 1ee264886025fb9b0d91f9c7a9e02e1eb9d0018f9ddf7bd66abe0cfca6c43095