[INFO] cloning repository https://github.com/Richard-code200/Rust_Lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Richard-code200/Rust_Lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRichard-code200%2FRust_Lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRichard-code200%2FRust_Lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0ec631fe9b7f2772eab22cc9f74495515f13b07
[INFO] fixing Richard-code200/Rust_Lang against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRichard-code200%2FRust_Lang" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Richard-code200/Rust_Lang
[INFO] finished tweaking git repo https://github.com/Richard-code200/Rust_Lang
[INFO] tweaked toml for git repo https://github.com/Richard-code200/Rust_Lang written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Richard-code200/Rust_Lang on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Richard-code200/Rust_Lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65
[INFO] running `Command { std: "docker" "start" "f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]     Checking Function_and_ControlFlow v0.1.0 (/opt/rustwide/workdir/Function_and_ControlFlow)
[INFO] [stderr]     Checking branches v0.1.0 (/opt/rustwide/workdir/branches)
[INFO] [stderr]     Checking example v0.1.0 (/opt/rustwide/workdir/example)
[INFO] [stderr]     Checking match_learn v0.1.0 (/opt/rustwide/workdir/match_learn)
[INFO] [stderr]     Checking borrow_and_reference v0.1.0 (/opt/rustwide/workdir/borrow_and_reference)
[INFO] [stderr]     Checking reference_borrowing v0.1.0 (/opt/rustwide/workdir/reference_borrowing)
[INFO] [stderr]     Checking nth_fibonacci v0.1.0 (/opt/rustwide/workdir/nth_fibonacci)
[INFO] [stderr]     Checking struct_learn v0.1.0 (/opt/rustwide/workdir/struct_learn)
[INFO] [stderr]     Checking ownership_learn v0.1.0 (/opt/rustwide/workdir/ownership_learn)
[INFO] [stderr]     Checking functions_learn v0.1.0 (/opt/rustwide/workdir/functions_learn)
[INFO] [stderr]     Checking variables_learn v0.1.0 (/opt/rustwide/workdir/variables_learn)
[INFO] [stderr]     Checking owenership v0.1.0 (/opt/rustwide/workdir/owenership)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> Function_and_ControlFlow/src/main.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     loop {
[INFO] [stdout] 51 | |         println!("again!");
[INFO] [stdout] 52 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 53 |
[INFO] [stdout] 54 |       let mut counter = 0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking slice_learn v0.1.0 (/opt/rustwide/workdir/slice_learn)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> Function_and_ControlFlow/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let y = 6;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> borrow_and_reference/src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s = format("{m1} {m2}!");
[INFO] [stdout]   |             ------ ^^^^^^^^^^^^ expected `Arguments<'_>`, found `&str`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             arguments to this function are incorrect
[INFO] [stdout]   |
[INFO] [stdout] note: function defined here
[INFO] [stdout]  --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/alloc/src/fmt.rs:649:7
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking algo_learn v0.1.0 (/opt/rustwide/workdir/algo_learn)
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr]     Checking iflet_learn v0.1.0 (/opt/rustwide/workdir/iflet_learn)
[INFO] [stderr]     Checking temp_converter v0.1.0 (/opt/rustwide/workdir/temp_converter)
[INFO] [stderr] error: could not compile `borrow_and_reference` (bin "borrow_and_reference" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `full`
[INFO] [stdout]   --> owenership/src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let full = add_suffix(first);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_full`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> borrow_and_reference/src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s = format("{m1} {m2}!");
[INFO] [stdout]   |             ------ ^^^^^^^^^^^^ expected `Arguments<'_>`, found `&str`
[INFO] [stdout]   |             |
[INFO] [stdout]   |             arguments to this function are incorrect
[INFO] [stdout]   |
[INFO] [stdout] note: function defined here
[INFO] [stdout]  --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/alloc/src/fmt.rs:649:7
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `borrow_and_reference` (bin "borrow_and_reference") due to 1 previous error
[INFO] [stdout] warning: function `BSort` is never used
[INFO] [stdout]   --> algo_learn/src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn BSort<T: Ord>(arr: &mut [T]) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `BSort` should have a snake case name
[INFO] [stdout]   --> algo_learn/src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn BSort<T: Ord>(arr: &mut [T]) {
[INFO] [stdout]    |    ^^^^^ help: convert the identifier to snake case: `bsort`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `BSort` is never used
[INFO] [stdout]   --> algo_learn/src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn BSort<T: Ord>(arr: &mut [T]) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `BSort` should have a snake case name
[INFO] [stdout]   --> algo_learn/src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn BSort<T: Ord>(arr: &mut [T]) {
[INFO] [stdout]    |    ^^^^^ help: convert the identifier to snake case: `bsort`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65", kill_on_drop: false }`
[INFO] [stdout] f704f3abc17039d10427952708152d417a92807f795b16a9f620b0cfe2049e65
