[INFO] updating cached repository Altefore/2048-GUI
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Altefore/2048-GUI
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Altefore/2048-GUI" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Altefore/2048-GUI"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Altefore/2048-GUI'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  98% (500/510)   
Checking out files:  99% (505/510)   
Checking out files: 100% (510/510)   
Checking out files: 100% (510/510), done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Altefore/2048-GUI" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Altefore/2048-GUI"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Altefore/2048-GUI'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d6aa4e6f6da3cc591dbf798b0f285899b93d3757
[INFO] sha for GitHub repo Altefore/2048-GUI: d6aa4e6f6da3cc591dbf798b0f285899b93d3757
[INFO] validating manifest of Altefore/2048-GUI on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Altefore/2048-GUI on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Altefore/2048-GUI
[INFO] finished frobbing Altefore/2048-GUI
[INFO] frobbed toml for Altefore/2048-GUI written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Altefore/2048-GUI/Cargo.toml
[INFO] started frobbing Altefore/2048-GUI
[INFO] finished frobbing Altefore/2048-GUI
[INFO] frobbed toml for Altefore/2048-GUI written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Altefore/2048-GUI/Cargo.toml
[INFO] crate Altefore/2048-GUI already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Altefore/2048-GUI/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://bitbucket.org/AdrienChampion/rust_2048.git`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://bitbucket.org/AdrienChampion/rust_2048.git`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Altefore/2048-GUI against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Altefore/2048-GUI:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f8c973ee0d724c2ec71614b71f6758fe27292291c5f6e4d64229a4a4dc352e52
[INFO] running `"docker" "start" "-a" "f8c973ee0d724c2ec71614b71f6758fe27292291c5f6e4d64229a4a4dc352e52"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Checking lib_2048 v0.1.0 (https://bitbucket.org/AdrienChampion/rust_2048.git?rev=3791048#3791048f)
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/common.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |         use rand::Rand ;
[INFO] [stderr]     |             ^^^^^^^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/grid.rs:228:9
[INFO] [stderr]     |
[INFO] [stderr] 228 |     use rand::Rand ;
[INFO] [stderr]     |         ^^^^^^^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `new` found for type `rand::StdRng` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/common.rs:105:25
[INFO] [stderr]     |
[INFO] [stderr] 105 |     match rand::StdRng::new() {
[INFO] [stderr]     |                         ^^^ function or associated item not found in `rand::StdRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/common.rs:111:26
[INFO] [stderr]     |
[INFO] [stderr] 111 |           let val = (u8::rand(& mut rng) % 26) + 97 ;
[INFO] [stderr]     |                          ^^^^ function or associated item not found in `u8`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/common.rs:128:25
[INFO] [stderr]     |
[INFO] [stderr] 128 |     IsaacRng::from_seed(& seed)
[INFO] [stderr]     |                         ^^^^^^ expected array of 32 elements, found reference
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `[u8; 32]`
[INFO] [stderr]                found type `&std::vec::Vec<u32>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/grid.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |       let (row, col) = free[(u8::rand(& mut self.rng) as usize) % free.len()] ;
[INFO] [stderr]     |                                  ^^^^ function or associated item not found in `u8`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/src/grid.rs:232:24
[INFO] [stderr]     |
[INFO] [stderr] 232 |       let pow = if u8::rand(& mut self.rng) % 100u8 > 80u8 {
[INFO] [stderr]     |                        ^^^^ function or associated item not found in `u8`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0432, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `lib_2048`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f8c973ee0d724c2ec71614b71f6758fe27292291c5f6e4d64229a4a4dc352e52"`
[INFO] running `"docker" "rm" "-f" "f8c973ee0d724c2ec71614b71f6758fe27292291c5f6e4d64229a4a4dc352e52"`
[INFO] [stdout] f8c973ee0d724c2ec71614b71f6758fe27292291c5f6e4d64229a4a4dc352e52