[INFO] fetching crate triez 0.1.0...
[INFO] testing triez-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate triez 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate triez 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate triez 0.1.0
[INFO] finished tweaking crates.io crate triez 0.1.0
[INFO] tweaked toml for crates.io crate triez 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] e5c349acf113ddd3ab5821fff9a78f05e53a4def12e9085ab7a0173ff83d9d43
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e5c349acf113ddd3ab5821fff9a78f05e53a4def12e9085ab7a0173ff83d9d43"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling triez v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/radix_tree.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                         mem::replace(current, new);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/radix_tree.rs:136:45
[INFO] [stderr]     |
[INFO] [stderr] 136 | ...                   mem::replace(child, Box::new(new_node));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "e5c349acf113ddd3ab5821fff9a78f05e53a4def12e9085ab7a0173ff83d9d43"`
[INFO] running `"docker" "rm" "-f" "e5c349acf113ddd3ab5821fff9a78f05e53a4def12e9085ab7a0173ff83d9d43"`
[INFO] [stdout] e5c349acf113ddd3ab5821fff9a78f05e53a4def12e9085ab7a0173ff83d9d43
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0d7b5f4b42984fae3462a95d725d86c87689297cec0b57240078146da39f327e
[INFO] running `"docker" "start" "-a" "0d7b5f4b42984fae3462a95d725d86c87689297cec0b57240078146da39f327e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling triez v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/radix_tree.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                         mem::replace(current, new);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/radix_tree.rs:136:45
[INFO] [stderr]     |
[INFO] [stderr] 136 | ...                   mem::replace(child, Box::new(new_node));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/radix_tree.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                         mem::replace(current, new);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/radix_tree.rs:136:45
[INFO] [stderr]     |
[INFO] [stderr] 136 | ...                   mem::replace(child, Box::new(new_node));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "0d7b5f4b42984fae3462a95d725d86c87689297cec0b57240078146da39f327e"`
[INFO] running `"docker" "rm" "-f" "0d7b5f4b42984fae3462a95d725d86c87689297cec0b57240078146da39f327e"`
[INFO] [stdout] 0d7b5f4b42984fae3462a95d725d86c87689297cec0b57240078146da39f327e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 028079690b5a94d9d602f48800623756a1e4cb05dea8261f824cc8082be5f5e4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "028079690b5a94d9d602f48800623756a1e4cb05dea8261f824cc8082be5f5e4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/radix_tree.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                         mem::replace(current, new);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/radix_tree.rs:136:45
[INFO] [stderr]     |
[INFO] [stderr] 136 | ...                   mem::replace(child, Box::new(new_node));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/radix_tree.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |                         mem::replace(current, new);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/radix_tree.rs:136:45
[INFO] [stderr]     |
[INFO] [stderr] 136 | ...                   mem::replace(child, Box::new(new_node));
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/triez-f70f9195d88b9703
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_trie_simple ... ok
[INFO] [stdout] test tests::test_trie_simple_numeric ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests triez
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Trie (line 17) ... FAILED
[INFO] [stdout] test src/radix_tree.rs - radix_tree::mem (line 11) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Trie (line 17) stdout ----
[INFO] [stdout] error: unexpected closing delimiter: `)`
[INFO] [stdout]  --> src/lib.rs:23:33
[INFO] [stdout]   |
[INFO] [stdout] 8 | trie.insert(String::from("asd")));
[INFO] [stdout]   |                                 ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] error: mismatched closing delimiter: `)`
[INFO] [stdout]  --> src/lib.rs:22:55
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |           - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 7 | assert_eq!(trie.contains(&String::from("asd"))), false);
[INFO] [stdout]   |                                                       ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/radix_tree.rs - radix_tree::mem (line 11) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Trie`
[INFO] [stdout]  --> src/radix_tree.rs:12:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut trie = Trie::new(
[INFO] [stdout]   |                ^^^^ use of undeclared type or module `Trie`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Trie (line 17)
[INFO] [stdout]     src/radix_tree.rs - radix_tree::mem (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "028079690b5a94d9d602f48800623756a1e4cb05dea8261f824cc8082be5f5e4"`
[INFO] running `"docker" "rm" "-f" "028079690b5a94d9d602f48800623756a1e4cb05dea8261f824cc8082be5f5e4"`
[INFO] [stdout] 028079690b5a94d9d602f48800623756a1e4cb05dea8261f824cc8082be5f5e4