[INFO] updating cached repository https://github.com/jorge-jbs/recorrelaberintos
[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] 6c4ffae0f6dc8a3c93155bfae04c51af3d582f96
[INFO] checking jorge-jbs/recorrelaberintos against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjorge-jbs%2Frecorrelaberintos" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jorge-jbs/recorrelaberintos on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jorge-jbs/recorrelaberintos
[INFO] finished tweaking git repo https://github.com/jorge-jbs/recorrelaberintos
[INFO] tweaked toml for git repo https://github.com/jorge-jbs/recorrelaberintos written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jorge-jbs/recorrelaberintos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] d841543a2bafe6a832e08adccfe22604bcd4828dc7f60e651e880ccc7d657fd9
[INFO] running `"docker" "start" "-a" "d841543a2bafe6a832e08adccfe22604bcd4828dc7f60e651e880ccc7d657fd9"`
[INFO] [stderr]     Checking num-traits v0.2.1
[INFO] [stderr]     Checking cons-list v0.0.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking recorrelaberintos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/async_cons_list.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 |         try!(write!(f, "["));
[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/async_cons_list.rs:243:17
[INFO] [stderr]     |
[INFO] [stderr] 243 |                 try!(write!(f, ", "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/async_cons_list.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(write!(f, "{:?}", *e));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/bfs.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 | /             /** Instead of checking duplicates in `frontier` (finding whether a node is in the
[INFO] [stderr] 56 | |              * frontier is expensive), we add nodes even if they are duplicated, and skip them we
[INFO] [stderr] 57 | |              * have already explored them.
[INFO] [stderr] 58 | |              *
[INFO] [stderr] 59 | |              * Although in practice there doesn't seem to be any duplicated nodes :/
[INFO] [stderr] 60 | |              */
[INFO] [stderr]    | |_______________^ rustdoc does not generate documentation for macros
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `test`
[INFO] [stderr]    --> src/async_cons_list.rs:443:9
[INFO] [stderr]     |
[INFO] [stderr] 443 |     use test::Bencher;
[INFO] [stderr]     |         ^^^^ help: a similar path exists: `super::test`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `test`
[INFO] [stderr]    --> src/async_cons_list.rs:444:9
[INFO] [stderr]     |
[INFO] [stderr] 444 |     use test;
[INFO] [stderr]     |         ^^^^ no `test` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/async_cons_list.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 |         try!(write!(f, "["));
[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/async_cons_list.rs:243:17
[INFO] [stderr]     |
[INFO] [stderr] 243 |                 try!(write!(f, ", "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/async_cons_list.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(write!(f, "{:?}", *e));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> src/async_cons_list.rs:448:7
[INFO] [stderr]     |
[INFO] [stderr] 448 |     #[bench]
[INFO] [stderr]     |       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[deny(soft_unstable)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stderr] 
[INFO] [stderr] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> src/async_cons_list.rs:454:7
[INFO] [stderr]     |
[INFO] [stderr] 454 |     #[bench]
[INFO] [stderr]     |       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stderr] 
[INFO] [stderr] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> src/async_cons_list.rs:460:7
[INFO] [stderr]     |
[INFO] [stderr] 460 |     #[bench]
[INFO] [stderr]     |       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stderr] 
[INFO] [stderr] error: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> src/async_cons_list.rs:466:7
[INFO] [stderr]     |
[INFO] [stderr] 466 |     #[bench]
[INFO] [stderr]     |       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/bfs.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 | /             /** Instead of checking duplicates in `frontier` (finding whether a node is in the
[INFO] [stderr] 56 | |              * frontier is expensive), we add nodes even if they are duplicated, and skip them we
[INFO] [stderr] 57 | |              * have already explored them.
[INFO] [stderr] 58 | |              *
[INFO] [stderr] 59 | |              * Although in practice there doesn't seem to be any duplicated nodes :/
[INFO] [stderr] 60 | |              */
[INFO] [stderr]    | |_______________^ rustdoc does not generate documentation for macros
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]   --> src/async_cons_list.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | extern crate test;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stderr]    = help: add `#![feature(test)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]    --> src/async_cons_list.rs:375:21
[INFO] [stderr]     |
[INFO] [stderr] 375 |         let mut h = hash::SipHasher::new();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher::new': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]    --> src/async_cons_list.rs:375:21
[INFO] [stderr]     |
[INFO] [stderr] 375 |         let mut h = hash::SipHasher::new();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `recorrelaberintos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d841543a2bafe6a832e08adccfe22604bcd4828dc7f60e651e880ccc7d657fd9"`
[INFO] running `"docker" "rm" "-f" "d841543a2bafe6a832e08adccfe22604bcd4828dc7f60e651e880ccc7d657fd9"`
[INFO] [stdout] d841543a2bafe6a832e08adccfe22604bcd4828dc7f60e651e880ccc7d657fd9
