[INFO] fetching crate hat_trie 0.2.4...
[INFO] checking hat_trie-0.2.4 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate hat_trie 0.2.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate hat_trie 0.2.4 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hat_trie 0.2.4
[INFO] finished tweaking crates.io crate hat_trie 0.2.4
[INFO] tweaked toml for crates.io crate hat_trie 0.2.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ahtable v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ace454b1f255a499c9c3e0f3d7015bb566d8c2064904339c802b95800c02dd79
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ace454b1f255a499c9c3e0f3d7015bb566d8c2064904339c802b95800c02dd79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace454b1f255a499c9c3e0f3d7015bb566d8c2064904339c802b95800c02dd79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace454b1f255a499c9c3e0f3d7015bb566d8c2064904339c802b95800c02dd79", kill_on_drop: false }`
[INFO] [stdout] ace454b1f255a499c9c3e0f3d7015bb566d8c2064904339c802b95800c02dd79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ca33c54693adb6c5b27836929c94b00f232b9d66f3f8e61aeb3844fcc451480
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5ca33c54693adb6c5b27836929c94b00f232b9d66f3f8e61aeb3844fcc451480", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking ahtable v0.1.5
[INFO] [stderr]     Checking hat_trie v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/htrie/mod.rs:119:38
[INFO] [stdout]     |
[INFO] [stdout] 119 |                         return child.get(&key[offset..].into())
[INFO] [stdout]     |                                      ^^^  -------------------- this method call resolves to `T`
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      cannot infer type for type parameter `T` declared on the associated function `get`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/htrie/mod.rs:119:38
[INFO] [stdout]     |
[INFO] [stdout] 119 |                         return child.get(&key[offset..].into())
[INFO] [stdout]     |                                      ^^^  -------------------- this method call resolves to `T`
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      cannot infer type for type parameter `T` declared on the associated function `get`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[K]` cannot be known at compilation time
[INFO] [stdout]    --> src/htrie/mod.rs:199:41
[INFO] [stdout]     |
[INFO] [stdout] 199 |                 if let Some(v) = bucket.smart_get(cur_key) {
[INFO] [stdout]     |                                         ^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `[K]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[K]` cannot be known at compilation time
[INFO] [stdout]    --> src/htrie/mod.rs:249:45
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     if let Some(v) = bucket.smart_get(cur_key) {
[INFO] [stdout]     |                                             ^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `[K]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0282.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hat_trie`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the size for values of type `[K]` cannot be known at compilation time
[INFO] [stdout]    --> src/htrie/mod.rs:199:41
[INFO] [stdout]     |
[INFO] [stdout] 199 |                 if let Some(v) = bucket.smart_get(cur_key) {
[INFO] [stdout]     |                                         ^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `[K]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[K]` cannot be known at compilation time
[INFO] [stdout]    --> src/htrie/mod.rs:249:45
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     if let Some(v) = bucket.smart_get(cur_key) {
[INFO] [stdout]     |                                             ^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `[K]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
[INFO] [stdout]    --> src/htrie/dense/tests.rs:365:41
[INFO] [stdout]     |
[INFO] [stdout] 365 |                 if let Some(_) = bucket.smart_get(&test_key[1..i]) {
[INFO] [stdout]     |                                         ^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `[u8]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0282.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ca33c54693adb6c5b27836929c94b00f232b9d66f3f8e61aeb3844fcc451480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ca33c54693adb6c5b27836929c94b00f232b9d66f3f8e61aeb3844fcc451480", kill_on_drop: false }`
[INFO] [stdout] 5ca33c54693adb6c5b27836929c94b00f232b9d66f3f8e61aeb3844fcc451480