[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/beta-1.38-1/sources/1.37.0/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/gh/rexim/working-opengl-example-in-rust-omg-iwanna-die"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rexim/working-opengl-example-in-rust-omg-iwanna-die on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rexim/working-opengl-example-in-rust-omg-iwanna-die against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ec8b4620b621071ac0076841cc53bd9771f2cf4b7792047f8893428dc4b67ec5
[INFO] running `"docker" "start" "-a" "ec8b4620b621071ac0076841cc53bd9771f2cf4b7792047f8893428dc4b67ec5"`
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr]    Compiling gl v0.6.3
[INFO] [stderr]    Compiling 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: 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 28.58s
[INFO] running `"docker" "inspect" "ec8b4620b621071ac0076841cc53bd9771f2cf4b7792047f8893428dc4b67ec5"`
[INFO] running `"docker" "rm" "-f" "ec8b4620b621071ac0076841cc53bd9771f2cf4b7792047f8893428dc4b67ec5"`
[INFO] [stdout] ec8b4620b621071ac0076841cc53bd9771f2cf4b7792047f8893428dc4b67ec5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ea6a4b0a07c04cbe52ac04e28f3099e59ff01ec74420d7cccf71d8fc56972d89
[INFO] running `"docker" "start" "-a" "ea6a4b0a07c04cbe52ac04e28f3099e59ff01ec74420d7cccf71d8fc56972d89"`
[INFO] [stderr]    Compiling 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: 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 0.97s
[INFO] running `"docker" "inspect" "ea6a4b0a07c04cbe52ac04e28f3099e59ff01ec74420d7cccf71d8fc56972d89"`
[INFO] running `"docker" "rm" "-f" "ea6a4b0a07c04cbe52ac04e28f3099e59ff01ec74420d7cccf71d8fc56972d89"`
[INFO] [stdout] ea6a4b0a07c04cbe52ac04e28f3099e59ff01ec74420d7cccf71d8fc56972d89
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0927cb2314c19c5c516281e57174594d6a0c4507554a19a7f9dc85b3d05adaee
[INFO] running `"docker" "start" "-a" "0927cb2314c19c5c516281e57174594d6a0c4507554a19a7f9dc85b3d05adaee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/opengl_probe-b66c1e89bcaad66d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0927cb2314c19c5c516281e57174594d6a0c4507554a19a7f9dc85b3d05adaee"`
[INFO] running `"docker" "rm" "-f" "0927cb2314c19c5c516281e57174594d6a0c4507554a19a7f9dc85b3d05adaee"`
[INFO] [stdout] 0927cb2314c19c5c516281e57174594d6a0c4507554a19a7f9dc85b3d05adaee