[INFO] fetching crate hat_trie 0.2.4...
[INFO] testing hat_trie-0.2.4 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate hat_trie 0.2.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate hat_trie 0.2.4 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29e90b2e54f1c6ea42ebf001393bafc05d2d7ae96ba6f29cb0f698a6e1348c22
[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" "29e90b2e54f1c6ea42ebf001393bafc05d2d7ae96ba6f29cb0f698a6e1348c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29e90b2e54f1c6ea42ebf001393bafc05d2d7ae96ba6f29cb0f698a6e1348c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e90b2e54f1c6ea42ebf001393bafc05d2d7ae96ba6f29cb0f698a6e1348c22", kill_on_drop: false }`
[INFO] [stdout] 29e90b2e54f1c6ea42ebf001393bafc05d2d7ae96ba6f29cb0f698a6e1348c22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90410bddc689509ab791c4f00ec3c25c21e82863f04270e009b01dbfb2b703e7
[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" "90410bddc689509ab791c4f00ec3c25c21e82863f04270e009b01dbfb2b703e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling twox-hash v1.6.1
[INFO] [stderr]    Compiling ahtable v0.1.5
[INFO] [stderr]    Compiling 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[E0277]: the size for values of type `[K]` cannot be known at compilation time
[INFO] [stdout]    --> src/htrie/mod.rs:199:51
[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]     |                                         required by a bound introduced by this call
[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:249:55
[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]     |                                             required by a bound introduced by this call
[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` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "90410bddc689509ab791c4f00ec3c25c21e82863f04270e009b01dbfb2b703e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90410bddc689509ab791c4f00ec3c25c21e82863f04270e009b01dbfb2b703e7", kill_on_drop: false }`
[INFO] [stdout] 90410bddc689509ab791c4f00ec3c25c21e82863f04270e009b01dbfb2b703e7