[INFO] updating cached repository https://github.com/ubnt-intrepid/rust-ast
[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] 666be7a3f847cbd5e0577111ee0e6790786f6d5a
[INFO] checking ubnt-intrepid/rust-ast against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frust-ast" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/rust-ast on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ubnt-intrepid/rust-ast
[INFO] finished tweaking git repo https://github.com/ubnt-intrepid/rust-ast
[INFO] tweaked toml for git repo https://github.com/ubnt-intrepid/rust-ast written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ubnt-intrepid/rust-ast already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 4fb6ed3084b48655b92bc22fc60f8012921aef2c4a5f4c50401006412462e97e
[INFO] running `"docker" "start" "-a" "4fb6ed3084b48655b92bc22fc60f8012921aef2c4a5f4c50401006412462e97e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking rust-ast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:33:27
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let i = match try!(eval(*e1, env)) {
[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/ast_closure.rs:37:27
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let j = match try!(eval(*e2, env)) {
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:45:27
[INFO] [stderr]    |
[INFO] [stderr] 45 |             let i = match try!(eval(*e1, env)) {
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:49:27
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let j = match try!(eval(*e2, env)) {
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:63:42
[INFO] [stderr]    |
[INFO] [stderr] 63 |             let (x, e, mut env_) = match try!(eval(*e1, env)) {
[INFO] [stderr]    |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let v = try!(eval(*e2, env));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:33:27
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let i = match try!(eval(*e1, env)) {
[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/ast_closure.rs:37:27
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let j = match try!(eval(*e2, env)) {
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:45:27
[INFO] [stderr]    |
[INFO] [stderr] 45 |             let i = match try!(eval(*e1, env)) {
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:49:27
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let j = match try!(eval(*e2, env)) {
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:63:42
[INFO] [stderr]    |
[INFO] [stderr] 63 |             let (x, e, mut env_) = match try!(eval(*e1, env)) {
[INFO] [stderr]    |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast_closure.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let v = try!(eval(*e2, env));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "4fb6ed3084b48655b92bc22fc60f8012921aef2c4a5f4c50401006412462e97e"`
[INFO] running `"docker" "rm" "-f" "4fb6ed3084b48655b92bc22fc60f8012921aef2c4a5f4c50401006412462e97e"`
[INFO] [stdout] 4fb6ed3084b48655b92bc22fc60f8012921aef2c4a5f4c50401006412462e97e