[INFO] updating cached repository killercup/rust-cheat-sheet
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/killercup/rust-cheat-sheet
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/rust-cheat-sheet" "work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/killercup/rust-cheat-sheet"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/killercup/rust-cheat-sheet'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/rust-cheat-sheet" "work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/killercup/rust-cheat-sheet"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/killercup/rust-cheat-sheet'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d4705136cd5a38a459017f1168e0c0c411956a31
[INFO] sha for GitHub repo killercup/rust-cheat-sheet: d4705136cd5a38a459017f1168e0c0c411956a31
[INFO] validating manifest of killercup/rust-cheat-sheet on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of killercup/rust-cheat-sheet on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing killercup/rust-cheat-sheet
[INFO] finished frobbing killercup/rust-cheat-sheet
[INFO] frobbed toml for killercup/rust-cheat-sheet written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/killercup/rust-cheat-sheet/Cargo.toml
[INFO] started frobbing killercup/rust-cheat-sheet
[INFO] finished frobbing killercup/rust-cheat-sheet
[INFO] frobbed toml for killercup/rust-cheat-sheet written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/killercup/rust-cheat-sheet/Cargo.toml
[INFO] crate killercup/rust-cheat-sheet already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking killercup/rust-cheat-sheet against try#097e26225c5cc28d3042ad4c80eac7c488f78ee7 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-0/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/killercup/rust-cheat-sheet:/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" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9b917fc949ed39aa8f4859b59b1efd79ca5567bd58cc7ec69a305a1b01c8794b
[INFO] running `"docker" "start" "-a" "9b917fc949ed39aa8f4859b59b1efd79ca5567bd58cc7ec69a305a1b01c8794b"`
[INFO] [stderr]     Checking rust101 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> cheat-sheet.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let x = 1;                 // `x` is now `1` (a 32bit integer, `i32`)
[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: variable `y` is assigned to, but never used
[INFO] [stderr]   --> cheat-sheet.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut y = 2;             // A mutable binding: We can change this value
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_y` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `y` is never read
[INFO] [stderr]   --> cheat-sheet.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     y += 1;                    // Add 1 to `y`, making it 3
[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: unused variable: `x`
[INFO] [stderr]   --> cheat-sheet.rs:70:22
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn this_consumes(x: String) -> String {
[INFO] [stderr]    |                      ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> cheat-sheet.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         fn new(name: &str, age: u16) -> Person {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> cheat-sheet.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let x = 1;                 // `x` is now `1` (a 32bit integer, `i32`)
[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: variable `y` is assigned to, but never used
[INFO] [stderr]   --> cheat-sheet.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut y = 2;             // A mutable binding: We can change this value
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_y` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `y` is never read
[INFO] [stderr]   --> cheat-sheet.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     y += 1;                    // Add 1 to `y`, making it 3
[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: unused variable: `x`
[INFO] [stderr]   --> cheat-sheet.rs:70:22
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn this_consumes(x: String) -> String {
[INFO] [stderr]    |                      ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> cheat-sheet.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         fn new(name: &str, age: u16) -> Person {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "9b917fc949ed39aa8f4859b59b1efd79ca5567bd58cc7ec69a305a1b01c8794b"`
[INFO] running `"docker" "rm" "-f" "9b917fc949ed39aa8f4859b59b1efd79ca5567bd58cc7ec69a305a1b01c8794b"`
[INFO] [stdout] 9b917fc949ed39aa8f4859b59b1efd79ca5567bd58cc7ec69a305a1b01c8794b