[INFO] updating cached repository https://github.com/killercup/rust-cheat-sheet
[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] d4705136cd5a38a459017f1168e0c0c411956a31
[INFO] testing killercup/rust-cheat-sheet against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Frust-cheat-sheet" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/killercup/rust-cheat-sheet on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/killercup/rust-cheat-sheet
[INFO] finished tweaking git repo https://github.com/killercup/rust-cheat-sheet
[INFO] tweaked toml for git repo https://github.com/killercup/rust-cheat-sheet written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/killercup/rust-cheat-sheet already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e22d8df61735ff9b21553c6fe539fa044bd75267ad1044be6a1767d8b1b748bf
[INFO] running `"docker" "start" "-a" "e22d8df61735ff9b21553c6fe539fa044bd75267ad1044be6a1767d8b1b748bf"`
[INFO] [stderr]    Compiling rust101 v0.1.0 (/opt/rustwide/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]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `"docker" "inspect" "e22d8df61735ff9b21553c6fe539fa044bd75267ad1044be6a1767d8b1b748bf"`
[INFO] running `"docker" "rm" "-f" "e22d8df61735ff9b21553c6fe539fa044bd75267ad1044be6a1767d8b1b748bf"`
[INFO] [stdout] e22d8df61735ff9b21553c6fe539fa044bd75267ad1044be6a1767d8b1b748bf
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5c22031ffbce32466e3e105fa44da2ba3aadf5c515cde390e5a9f99c2d2cd03c
[INFO] running `"docker" "start" "-a" "5c22031ffbce32466e3e105fa44da2ba3aadf5c515cde390e5a9f99c2d2cd03c"`
[INFO] [stderr]    Compiling rust101 v0.1.0 (/opt/rustwide/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]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "5c22031ffbce32466e3e105fa44da2ba3aadf5c515cde390e5a9f99c2d2cd03c"`
[INFO] running `"docker" "rm" "-f" "5c22031ffbce32466e3e105fa44da2ba3aadf5c515cde390e5a9f99c2d2cd03c"`
[INFO] [stdout] 5c22031ffbce32466e3e105fa44da2ba3aadf5c515cde390e5a9f99c2d2cd03c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 376fa3734aae0bf680ba91e89b49b6facc41c9dde4496e99957e4b51d105f8cf
[INFO] running `"docker" "start" "-a" "376fa3734aae0bf680ba91e89b49b6facc41c9dde4496e99957e4b51d105f8cf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cheat_sheet-f14d192980dc81f8
[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" "376fa3734aae0bf680ba91e89b49b6facc41c9dde4496e99957e4b51d105f8cf"`
[INFO] running `"docker" "rm" "-f" "376fa3734aae0bf680ba91e89b49b6facc41c9dde4496e99957e4b51d105f8cf"`
[INFO] [stdout] 376fa3734aae0bf680ba91e89b49b6facc41c9dde4496e99957e4b51d105f8cf