[INFO] updating cached repository rexim/working-opengl-example-in-rust-omg-iwanna-die
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rexim/working-opengl-example-in-rust-omg-iwanna-die
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d62967a15bd44b8eb6f586bf3610f0c8d0515b3e
[INFO] sha for GitHub repo rexim/working-opengl-example-in-rust-omg-iwanna-die: d62967a15bd44b8eb6f586bf3610f0c8d0515b3e
[INFO] validating manifest of rexim/working-opengl-example-in-rust-omg-iwanna-die on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rexim/working-opengl-example-in-rust-omg-iwanna-die on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rexim/working-opengl-example-in-rust-omg-iwanna-die
[INFO] finished frobbing rexim/working-opengl-example-in-rust-omg-iwanna-die
[INFO] frobbed toml for rexim/working-opengl-example-in-rust-omg-iwanna-die written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die/Cargo.toml
[INFO] started frobbing rexim/working-opengl-example-in-rust-omg-iwanna-die
[INFO] finished frobbing rexim/working-opengl-example-in-rust-omg-iwanna-die
[INFO] frobbed toml for rexim/working-opengl-example-in-rust-omg-iwanna-die written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die/Cargo.toml
[INFO] crate rexim/working-opengl-example-in-rust-omg-iwanna-die already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rexim/working-opengl-example-in-rust-omg-iwanna-die against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-7/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2ba5d1af3e57991efcfa8a95a6f553b7902c1e1ccd3b64d4be0f843c7634f089
[INFO] running `"docker" "start" "-a" "2ba5d1af3e57991efcfa8a95a6f553b7902c1e1ccd3b64d4be0f843c7634f089"`
[INFO] [stderr]     Checking sdl2-sys v0.30.0
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stderr]     Checking opengl-probe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let context = window.gl_create_context().unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `vs` is never read
[INFO] [stderr]    --> src/main.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let mut vs = 0;
[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 `fs` is never read
[INFO] [stderr]    --> src/main.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let mut fs = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `shader_program` is never read
[INFO] [stderr]    --> src/main.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |     let mut shader_program = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let context = window.gl_create_context().unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `vs` is never read
[INFO] [stderr]    --> src/main.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let mut vs = 0;
[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 `fs` is never read
[INFO] [stderr]    --> src/main.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let mut fs = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `shader_program` is never read
[INFO] [stderr]    --> src/main.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |     let mut shader_program = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let mut angle_loc = 0;
[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: constant `n` should have an upper case name
[INFO] [stderr]   --> src/main.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 |     const n: usize = 20;
[INFO] [stderr]    |           ^ help: convert the identifier to upper case: `N`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `base` should have an upper case name
[INFO] [stderr]   --> src/main.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 |     const base: usize = 3;
[INFO] [stderr]    |           ^^^^ help: convert the identifier to upper case: `BASE`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let mut angle_loc = 0;
[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: constant `n` should have an upper case name
[INFO] [stderr]   --> src/main.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 |     const n: usize = 20;
[INFO] [stderr]    |           ^ help: convert the identifier to upper case: `N`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `base` should have an upper case name
[INFO] [stderr]   --> src/main.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 |     const base: usize = 3;
[INFO] [stderr]    |           ^^^^ help: convert the identifier to upper case: `BASE`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `"docker" "inspect" "2ba5d1af3e57991efcfa8a95a6f553b7902c1e1ccd3b64d4be0f843c7634f089"`
[INFO] running `"docker" "rm" "-f" "2ba5d1af3e57991efcfa8a95a6f553b7902c1e1ccd3b64d4be0f843c7634f089"`
[INFO] [stdout] 2ba5d1af3e57991efcfa8a95a6f553b7902c1e1ccd3b64d4be0f843c7634f089