[INFO] cloning repository https://github.com/virtustron/hash_collection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/virtustron/hash_collection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvirtustron%2Fhash_collection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvirtustron%2Fhash_collection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8e34228fdb3789446c7a7db1e790b78c406aa6e
[INFO] checking virtustron/hash_collection against try#ef5216c337126ffe24d074826f4023948c4a9b8e for pr-137033
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvirtustron%2Fhash_collection" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/virtustron/hash_collection on toolchain ef5216c337126ffe24d074826f4023948c4a9b8e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/virtustron/hash_collection
[INFO] finished tweaking git repo https://github.com/virtustron/hash_collection
[INFO] tweaked toml for git repo https://github.com/virtustron/hash_collection written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/virtustron/hash_collection 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" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e584d67399ea4de5b702168d33c9479f2d5bcbb4856fbe54ea244ed4372c2070
[INFO] running `Command { std: "docker" "start" "-a" "e584d67399ea4de5b702168d33c9479f2d5bcbb4856fbe54ea244ed4372c2070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e584d67399ea4de5b702168d33c9479f2d5bcbb4856fbe54ea244ed4372c2070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e584d67399ea4de5b702168d33c9479f2d5bcbb4856fbe54ea244ed4372c2070", kill_on_drop: false }`
[INFO] [stdout] e584d67399ea4de5b702168d33c9479f2d5bcbb4856fbe54ea244ed4372c2070
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ef5216c337126ffe24d074826f4023948c4a9b8e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f6f47b179bd88d59018e10a147cbd396dc1e87612829c199ddfbc2d9c97caea
[INFO] running `Command { std: "docker" "start" "-a" "9f6f47b179bd88d59018e10a147cbd396dc1e87612829c199ddfbc2d9c97caea", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hash_collection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/hash_collection.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn get_entry(self, key: K) -> HashEntry<K, V> {
[INFO] [stdout]    |            ---------                  ^^^^^^^^^^^^^^^ expected `HashEntry<K, V>`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `HashEntry<K, V>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/hash_collection.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn get_entry(self, key: K) -> HashEntry<K, V> {
[INFO] [stdout]    |            ---------                  ^^^^^^^^^^^^^^^ expected `HashEntry<K, V>`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `HashEntry<K, V>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/hash_collection.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn do_hashing(self, key: K) -> usize {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/hash_collection.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn insert(self, key: K, value: V) {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/hash_collection.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn insert(self, key: K, value: V) {
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/hash_collection.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn do_hashing(self, key: K) -> usize {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/hash_collection.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn insert(self, key: K, value: V) {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/hash_collection.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn insert(self, key: K, value: V) {
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hc`
[INFO] [stdout]   --> src/hash_collection.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let hc: HashCollection<u32, u32> = HashCollection::new(5);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_hc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hash_collection` (bin "hash_collection") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hash_collection` (bin "hash_collection" test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9f6f47b179bd88d59018e10a147cbd396dc1e87612829c199ddfbc2d9c97caea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f6f47b179bd88d59018e10a147cbd396dc1e87612829c199ddfbc2d9c97caea", kill_on_drop: false }`
[INFO] [stdout] 9f6f47b179bd88d59018e10a147cbd396dc1e87612829c199ddfbc2d9c97caea