[INFO] updating cached repository foodhype/suggest_tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/foodhype/suggest_tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/foodhype/suggest_tree" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/foodhype/suggest_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/foodhype/suggest_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/foodhype/suggest_tree" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/foodhype/suggest_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/foodhype/suggest_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4b5d22659c5505f0b92f50861f1ab9f4af9b18e8
[INFO] sha for GitHub repo foodhype/suggest_tree: 4b5d22659c5505f0b92f50861f1ab9f4af9b18e8
[INFO] validating manifest of foodhype/suggest_tree on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of foodhype/suggest_tree on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing foodhype/suggest_tree
[INFO] finished frobbing foodhype/suggest_tree
[INFO] frobbed toml for foodhype/suggest_tree written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/foodhype/suggest_tree/Cargo.toml
[INFO] started frobbing foodhype/suggest_tree
[INFO] finished frobbing foodhype/suggest_tree
[INFO] frobbed toml for foodhype/suggest_tree written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/foodhype/suggest_tree/Cargo.toml
[INFO] crate foodhype/suggest_tree already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking foodhype/suggest_tree against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/foodhype/suggest_tree:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 431a63e3c798d38efcded348db68dbcc9efac3a4a57be9b51cebbdcd64d0e4fb
[INFO] running `"docker" "start" "-a" "431a63e3c798d38efcded348db68dbcc9efac3a4a57be9b51cebbdcd64d0e4fb"`
[INFO] [stderr]     Checking suggest_tree v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::io::BufferedReader`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::BufferedReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^ no `BufferedReader` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::io::File`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^ no `File` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]    --> src/main.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let path = Path::new("/usr/share/dict/words");
[INFO] [stderr]     |                ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     last_index: uint
[INFO] [stderr]   |                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |     completion_weights: HashMap<uint, uint>
[INFO] [stderr]    |                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:15:39
[INFO] [stderr]    |
[INFO] [stderr] 15 |     completion_weights: HashMap<uint, uint>
[INFO] [stderr]    |                                       ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:26:42
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn add(&mut self, word: &str, index: uint) {
[INFO] [stderr]    |                                          ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:47:66
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_indexes(& mut self, prefix: &str) -> Option<& HashMap<uint, uint>> {
[INFO] [stderr]    |                                                                  ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:47:72
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_indexes(& mut self, prefix: &str) -> Option<& HashMap<uint, uint>> {
[INFO] [stderr]    |                                                                        ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:81:66
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn get_weights(& mut self, prefix: &str) -> HashMap<&String, uint> {
[INFO] [stderr]    |                                                                  ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/main.rs:33:42
[INFO] [stderr]    |
[INFO] [stderr] 33 |             self.children.insert(letter, box CompletionTrie::new());
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/49733
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `'a` is never used
[INFO] [stderr]   --> src/main.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct CompletionTrie<'a> {
[INFO] [stderr]    |                       ^^ unused parameter
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing `'a` or using a marker such as `std::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0392, E0412, E0432, E0433, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0392`.
[INFO] [stderr] error[E0432]: unresolved import `std::io::BufferedReader`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::BufferedReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^ no `BufferedReader` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::io::File`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^ no `File` in `io`
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `suggest_tree`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]    --> src/main.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let path = Path::new("/usr/share/dict/words");
[INFO] [stderr]     |                ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     last_index: uint
[INFO] [stderr]   |                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |     completion_weights: HashMap<uint, uint>
[INFO] [stderr]    |                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:15:39
[INFO] [stderr]    |
[INFO] [stderr] 15 |     completion_weights: HashMap<uint, uint>
[INFO] [stderr]    |                                       ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:26:42
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn add(&mut self, word: &str, index: uint) {
[INFO] [stderr]    |                                          ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:47:66
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_indexes(& mut self, prefix: &str) -> Option<& HashMap<uint, uint>> {
[INFO] [stderr]    |                                                                  ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:47:72
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_indexes(& mut self, prefix: &str) -> Option<& HashMap<uint, uint>> {
[INFO] [stderr]    |                                                                        ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:81:66
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn get_weights(& mut self, prefix: &str) -> HashMap<&String, uint> {
[INFO] [stderr]    |                                                                  ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/main.rs:33:42
[INFO] [stderr]    |
[INFO] [stderr] 33 |             self.children.insert(letter, box CompletionTrie::new());
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/49733
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0392]: parameter `'a` is never used
[INFO] [stderr]   --> src/main.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct CompletionTrie<'a> {
[INFO] [stderr]    |                       ^^ unused parameter
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing `'a` or using a marker such as `std::marker::PhantomData`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0392, E0412, E0432, E0433, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0392`.
[INFO] [stderr] error: Could not compile `suggest_tree`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "431a63e3c798d38efcded348db68dbcc9efac3a4a57be9b51cebbdcd64d0e4fb"`
[INFO] running `"docker" "rm" "-f" "431a63e3c798d38efcded348db68dbcc9efac3a4a57be9b51cebbdcd64d0e4fb"`
[INFO] [stdout] 431a63e3c798d38efcded348db68dbcc9efac3a4a57be9b51cebbdcd64d0e4fb