[INFO] updating cached repository https://github.com/caporta/rust_fundamentals
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78a5378e3b3c9e32237f5f6bcc8083bd250e7b8d
[INFO] testing caporta/rust_fundamentals against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaporta%2Frust_fundamentals" "work/builds/worker-8/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/caporta/rust_fundamentals on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/caporta/rust_fundamentals
[INFO] finished tweaking git repo https://github.com/caporta/rust_fundamentals
[INFO] tweaked toml for git repo https://github.com/caporta/rust_fundamentals written to work/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/caporta/rust_fundamentals already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 109d24c553cd99c17ba7091739b4b8c608110407d4d54684d7df933e0441e768
[INFO] running `"docker" "start" "-a" "109d24c553cd99c17ba7091739b4b8c608110407d4d54684d7df933e0441e768"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/stack_and_heap.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[allow(unused_variable)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/control_flow.rs:64:10
[INFO] [stderr]    |
[INFO] [stderr] 64 |         1...999 => "unknown", // inclusive range notation (opposite in most langs)
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]  --> src/pattern_matching.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 |         z @ 9...11 => "lots of", //assign range to variable
[INFO] [stderr]   |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/stack_and_heap.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let x = 5; // i32 stored on the stack
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> src/data_structures_2.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let u:&str = &letters; // d-ref conversions
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]  --> src/pattern_matching.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |         z @ 9...11 => "lots of", //assign range to variable
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `myLine`
[INFO] [stderr]   --> src/generics.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let myLine = Line { start: a, end: b };
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_myLine`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]  --> src/stack_and_heap.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     y: f64
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Red`
[INFO] [stderr]   --> src/data_structures_1.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Red, // "memberless struct"
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Green`
[INFO] [stderr]   --> src/data_structures_1.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Green, // "memberless struct"
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blue`
[INFO] [stderr]   --> src/data_structures_1.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Blue, // etc...
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RGBColor`
[INFO] [stderr]   --> src/data_structures_1.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     RGBColor(u8, u8, u8), // tuple
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cyan`
[INFO] [stderr]   --> src/data_structures_1.rs:32:15
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
[INFO] [stderr]    |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `magenta`
[INFO] [stderr]   --> src/data_structures_1.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
[INFO] [stderr]    |                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `yellow`
[INFO] [stderr]   --> src/data_structures_1.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
[INFO] [stderr]    |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `start`
[INFO] [stderr]  --> src/generics.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     start: Point<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `end`
[INFO] [stderr]  --> src/generics.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     end: Point<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `myLine` should have a snake case name
[INFO] [stderr]   --> src/data_structures_1.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let myLine = Line { start: p, end: p2 };
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `my_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `myLine` should have a snake case name
[INFO] [stderr]   --> src/generics.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let myLine = Line { start: a, end: b };
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `my_line`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `"docker" "inspect" "109d24c553cd99c17ba7091739b4b8c608110407d4d54684d7df933e0441e768"`
[INFO] running `"docker" "rm" "-f" "109d24c553cd99c17ba7091739b4b8c608110407d4d54684d7df933e0441e768"`
[INFO] [stdout] 109d24c553cd99c17ba7091739b4b8c608110407d4d54684d7df933e0441e768
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] c965e8f4c7929a67d1c795d0a5d44a4a3160d7d2d86c816410af9d78ae7528a3
[INFO] running `"docker" "start" "-a" "c965e8f4c7929a67d1c795d0a5d44a4a3160d7d2d86c816410af9d78ae7528a3"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/stack_and_heap.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[allow(unused_variable)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/control_flow.rs:64:10
[INFO] [stderr]    |
[INFO] [stderr] 64 |         1...999 => "unknown", // inclusive range notation (opposite in most langs)
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]  --> src/pattern_matching.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 |         z @ 9...11 => "lots of", //assign range to variable
[INFO] [stderr]   |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/stack_and_heap.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let x = 5; // i32 stored on the stack
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> src/data_structures_2.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let u:&str = &letters; // d-ref conversions
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]  --> src/pattern_matching.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |         z @ 9...11 => "lots of", //assign range to variable
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `myLine`
[INFO] [stderr]   --> src/generics.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let myLine = Line { start: a, end: b };
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_myLine`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]  --> src/stack_and_heap.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     y: f64
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Red`
[INFO] [stderr]   --> src/data_structures_1.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Red, // "memberless struct"
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Green`
[INFO] [stderr]   --> src/data_structures_1.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Green, // "memberless struct"
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blue`
[INFO] [stderr]   --> src/data_structures_1.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Blue, // etc...
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RGBColor`
[INFO] [stderr]   --> src/data_structures_1.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     RGBColor(u8, u8, u8), // tuple
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cyan`
[INFO] [stderr]   --> src/data_structures_1.rs:32:15
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
[INFO] [stderr]    |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `magenta`
[INFO] [stderr]   --> src/data_structures_1.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
[INFO] [stderr]    |                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `yellow`
[INFO] [stderr]   --> src/data_structures_1.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
[INFO] [stderr]    |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `start`
[INFO] [stderr]  --> src/generics.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     start: Point<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `end`
[INFO] [stderr]  --> src/generics.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     end: Point<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `myLine` should have a snake case name
[INFO] [stderr]   --> src/data_structures_1.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let myLine = Line { start: p, end: p2 };
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `my_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `myLine` should have a snake case name
[INFO] [stderr]   --> src/generics.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let myLine = Line { start: a, end: b };
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `my_line`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "c965e8f4c7929a67d1c795d0a5d44a4a3160d7d2d86c816410af9d78ae7528a3"`
[INFO] running `"docker" "rm" "-f" "c965e8f4c7929a67d1c795d0a5d44a4a3160d7d2d86c816410af9d78ae7528a3"`
[INFO] [stdout] c965e8f4c7929a67d1c795d0a5d44a4a3160d7d2d86c816410af9d78ae7528a3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] c943ef2011c2382923e6986cf0fb3d7636ac70524a47ad828d48aa3b8e1c46b2
[INFO] running `"docker" "start" "-a" "c943ef2011c2382923e6986cf0fb3d7636ac70524a47ad828d48aa3b8e1c46b2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_world-732531b8cdbc8756
[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" "c943ef2011c2382923e6986cf0fb3d7636ac70524a47ad828d48aa3b8e1c46b2"`
[INFO] running `"docker" "rm" "-f" "c943ef2011c2382923e6986cf0fb3d7636ac70524a47ad828d48aa3b8e1c46b2"`
[INFO] [stdout] c943ef2011c2382923e6986cf0fb3d7636ac70524a47ad828d48aa3b8e1c46b2