[INFO] fetching crate splay_tree 0.3.1...
[INFO] checking splay_tree-0.3.1 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate splay_tree 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate splay_tree 0.3.1 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate splay_tree 0.3.1
[INFO] finished tweaking crates.io crate splay_tree 0.3.1
[INFO] tweaked toml for crates.io crate splay_tree 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate splay_tree 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff23b2cfe6acaea04bb919bf6ee7cb07dd9b6766033b8a35eb2b2d25f4ca90fa
[INFO] running `Command { std: "docker" "start" "-a" "ff23b2cfe6acaea04bb919bf6ee7cb07dd9b6766033b8a35eb2b2d25f4ca90fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff23b2cfe6acaea04bb919bf6ee7cb07dd9b6766033b8a35eb2b2d25f4ca90fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff23b2cfe6acaea04bb919bf6ee7cb07dd9b6766033b8a35eb2b2d25f4ca90fa", kill_on_drop: false }`
[INFO] [stdout] ff23b2cfe6acaea04bb919bf6ee7cb07dd9b6766033b8a35eb2b2d25f4ca90fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 081dfaabc98e7d514d50eaefc7bb585df98f591e40416d70c68c7f2a47ef4450
[INFO] running `Command { std: "docker" "start" "-a" "081dfaabc98e7d514d50eaefc7bb585df98f591e40416d70c68c7f2a47ef4450", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking splay_tree v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:286:41
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut order = cmp(curr_mut.key.borrow());
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:298:50
[INFO] [stdout]     |
[INFO] [stdout] 298 |                         order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:307:54
[INFO] [stdout]     |
[INFO] [stdout] 307 | ...                   order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:316:50
[INFO] [stdout]     |
[INFO] [stdout] 316 |                         order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:325:54
[INFO] [stdout]     |
[INFO] [stdout] 325 | ...                   order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         test::black_box(map.get(&middle));
[INFO] [stdout]    |         ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         test::black_box(map.get(&none));
[INFO] [stdout]    |         ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn insert_splay(b: &mut test::Bencher, num: u32) {
[INFO] [stdout]    |                         ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn get_middle_splay(b: &mut test::Bencher, num: u32) {
[INFO] [stdout]    |                             ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:74:38
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn bench_get_none_splay_huge(b: &mut test::Bencher) {
[INFO] [stdout]    |                                      ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn get_none_splay(b: &mut test::Bencher, num: u32) {
[INFO] [stdout]    |                           ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:70:37
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn bench_get_none_splay_big(b: &mut test::Bencher) {
[INFO] [stdout]    |                                     ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn bench_insert_splay_small(b: &mut test::Bencher) {
[INFO] [stdout]    |                                     ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:49:38
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn bench_insert_splay_medium(b: &mut test::Bencher) {
[INFO] [stdout]    |                                      ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:53:35
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn bench_insert_splay_big(b: &mut test::Bencher) {
[INFO] [stdout]    |                                   ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:57:36
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn bench_insert_splay_huge(b: &mut test::Bencher) {
[INFO] [stdout]    |                                    ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:62:39
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn bench_get_none_splay_small(b: &mut test::Bencher) {
[INFO] [stdout]    |                                       ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test`
[INFO] [stdout]   --> benches/bench.rs:66:40
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn bench_get_none_splay_medium(b: &mut test::Bencher) {
[INFO] [stdout]    |                                        ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `splay_tree` (bench "bench") due to 14 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:286:41
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut order = cmp(curr_mut.key.borrow());
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:298:50
[INFO] [stdout]     |
[INFO] [stdout] 298 |                         order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:307:54
[INFO] [stdout]     |
[INFO] [stdout] 307 | ...                   order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:316:50
[INFO] [stdout]     |
[INFO] [stdout] 316 |                         order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/tree_core.rs:325:54
[INFO] [stdout]     |
[INFO] [stdout] 325 | ...                   order = cmp(child_mut.key.borrow());
[INFO] [stdout]     |                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "081dfaabc98e7d514d50eaefc7bb585df98f591e40416d70c68c7f2a47ef4450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081dfaabc98e7d514d50eaefc7bb585df98f591e40416d70c68c7f2a47ef4450", kill_on_drop: false }`
[INFO] [stdout] 081dfaabc98e7d514d50eaefc7bb585df98f591e40416d70c68c7f2a47ef4450
