[INFO] cloning repository albfan/rust-tree-sitter-ast-viewer
[INFO] running `"git" "clone" "--bare" "git://github.com/albfan/rust-tree-sitter-ast-viewer.git" "work/cache/sources/gh/albfan/rust-tree-sitter-ast-viewer"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/albfan/rust-tree-sitter-ast-viewer'...
[INFO] running `"git" "clone" "work/cache/sources/gh/albfan/rust-tree-sitter-ast-viewer" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/albfan/rust-tree-sitter-ast-viewer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/albfan/rust-tree-sitter-ast-viewer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/albfan/rust-tree-sitter-ast-viewer" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/albfan/rust-tree-sitter-ast-viewer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/albfan/rust-tree-sitter-ast-viewer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c78b9692af1cbfe0e60c9d3f1e75dd8c426822c0
[INFO] sha for GitHub repo albfan/rust-tree-sitter-ast-viewer: c78b9692af1cbfe0e60c9d3f1e75dd8c426822c0
[INFO] validating manifest of albfan/rust-tree-sitter-ast-viewer on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of albfan/rust-tree-sitter-ast-viewer on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing albfan/rust-tree-sitter-ast-viewer
[INFO] finished frobbing albfan/rust-tree-sitter-ast-viewer
[INFO] frobbed toml for albfan/rust-tree-sitter-ast-viewer written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/albfan/rust-tree-sitter-ast-viewer/Cargo.toml
[INFO] started frobbing albfan/rust-tree-sitter-ast-viewer
[INFO] finished frobbing albfan/rust-tree-sitter-ast-viewer
[INFO] frobbed toml for albfan/rust-tree-sitter-ast-viewer written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/albfan/rust-tree-sitter-ast-viewer/Cargo.toml
[INFO] crate albfan/rust-tree-sitter-ast-viewer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/tree-sitter/rust-tree-sitter`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking albfan/rust-tree-sitter-ast-viewer against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/albfan/rust-tree-sitter-ast-viewer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 185d51386c408e6f474b249915ca78e432f7b4dfb3b6ca8e8d3302b69fb1d1f3
[INFO] running `"docker" "start" "-a" "185d51386c408e6f474b249915ca78e432f7b4dfb3b6ca8e8d3302b69fb1d1f3"`
[INFO] [stderr]    Compiling tree-sitter v0.3.4 (https://github.com/tree-sitter/rust-tree-sitter#85347541)
[INFO] [stderr]    Compiling tree-sitter-ast-viewer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> build.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> build.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let mut parser_dir: PathBuf = ["fixtures", path.unwrap().file_name().to_str().unwrap(), "src"].iter().collect();
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `language` is never read
[INFO] [stderr]   --> src/main.rs:34:11
[INFO] [stderr]    |
[INFO] [stderr] 34 |   let mut language = unsafe { tree_sitter_rust() };
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `language` is never read
[INFO] [stderr]   --> src/main.rs:34:11
[INFO] [stderr]    |
[INFO] [stderr] 34 |   let mut language = unsafe { tree_sitter_rust() };
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `tree_sitter_python`
[INFO] [stderr]   --> src/main.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |   extern "C" { fn tree_sitter_python() -> Language; }
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `tree_sitter_ruby`
[INFO] [stderr]   --> src/main.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |   extern "C" { fn tree_sitter_ruby() -> Language; }
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `tree_sitter_haskell`
[INFO] [stderr]   --> src/main.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |   extern "C" { fn tree_sitter_haskell() -> Language; }
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `tree_sitter_cpp`
[INFO] [stderr]   --> src/main.rs:15:16
[INFO] [stderr]    |
[INFO] [stderr] 15 |   extern "C" { fn tree_sitter_cpp() -> Language; }
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `tree_sitter_bash`
[INFO] [stderr]   --> src/main.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |   extern "C" { fn tree_sitter_bash() -> Language; }
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `tree_sitter_php`
[INFO] [stderr]   --> src/main.rs:20:16
[INFO] [stderr]    |
[INFO] [stderr] 20 |   extern "C" { fn tree_sitter_php() -> Language; }
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.00s
[INFO] running `"docker" "inspect" "185d51386c408e6f474b249915ca78e432f7b4dfb3b6ca8e8d3302b69fb1d1f3"`
[INFO] running `"docker" "rm" "-f" "185d51386c408e6f474b249915ca78e432f7b4dfb3b6ca8e8d3302b69fb1d1f3"`
[INFO] [stdout] 185d51386c408e6f474b249915ca78e432f7b4dfb3b6ca8e8d3302b69fb1d1f3