[INFO] cloning repository https://github.com/weiyinfu/learnRust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weiyinfu/learnRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweiyinfu%2FlearnRust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweiyinfu%2FlearnRust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f48d6c98d5658611581783207034db78f373ccac
[INFO] checking weiyinfu/learnRust against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweiyinfu%2FlearnRust" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/weiyinfu/learnRust on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/weiyinfu/learnRust
[INFO] finished tweaking git repo https://github.com/weiyinfu/learnRust
[INFO] tweaked toml for git repo https://github.com/weiyinfu/learnRust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/weiyinfu/learnRust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 04062a01c1bd21d2d785b8e28e7b47ac8cfdfe360582ddc6bf70d1047da060e7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "04062a01c1bd21d2d785b8e28e7b47ac8cfdfe360582ddc6bf70d1047da060e7"`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ferris-says v0.1.2
[INFO] [stderr]     Checking learnRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `26_堆排序`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/bin/26-堆排序.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] warning: constant `x` should have an upper case name
[INFO] [stderr]  --> src/bin/02-常量.rs:1:7
[INFO] [stderr]   |
[INFO] [stderr] 1 | const x: i32 = 3;
[INFO] [stderr]   |       ^ help: convert the identifier to upper case (notice the capitalization): `X`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `y` should have an upper case name
[INFO] [stderr]  --> src/bin/02-常量.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | static y: i32 = 4;
[INFO] [stderr]   |        ^ help: convert the identifier to upper case (notice the capitalization): `Y`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `z` should have an upper case name
[INFO] [stderr]  --> src/bin/02-常量.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | static mut z: i32 = 5;
[INFO] [stderr]   |            ^ help: convert the identifier to upper case (notice the capitalization): `Z`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `learnRust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0502]: cannot borrow `a` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/bin/13-闭包递归八皇后.rs:63:24
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let canput = |x: usize, y: usize| {
[INFO] [stderr]    |                  -------------------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 20 |                         if a[xx as usize][yy as usize] != 0 {
[INFO] [stderr]    |                            - first borrow occurs due to use of `a` in closure
[INFO] [stderr] ...
[INFO] [stderr] 63 |     (go.go)(&go, 0, 0, &mut a);
[INFO] [stderr]    |     -------            ^^^^^^ mutable borrow occurs here
[INFO] [stderr]    |     |
[INFO] [stderr]    |     immutable borrow later used by call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] warning: constant `n` should have an upper case name
[INFO] [stderr]  --> src/bin/12-八皇后.rs:1:7
[INFO] [stderr]   |
[INFO] [stderr] 1 | const n: usize = 8;
[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: static variable `total` should have an upper case name
[INFO] [stderr]  --> src/bin/12-八皇后.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | static mut total: i32 = 0;
[INFO] [stderr]   |            ^^^^^ help: convert the identifier to upper case: `TOTAL`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `queenCount` should have a snake case name
[INFO] [stderr]   --> src/bin/12-八皇后.rs:39:50
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn go(a: &mut [[i32; n]; n], x: usize, y: usize, queenCount: i32) {
[INFO] [stderr]    |                                                  ^^^^^^^^^^ help: convert the identifier to snake case: `queen_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `learnRust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: constant `x` should have an upper case name
[INFO] [stderr]  --> src/bin/02-常量.rs:1:7
[INFO] [stderr]   |
[INFO] [stderr] 1 | const x: i32 = 3;
[INFO] [stderr]   |       ^ help: convert the identifier to upper case (notice the capitalization): `X`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `y` should have an upper case name
[INFO] [stderr]  --> src/bin/02-常量.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | static y: i32 = 4;
[INFO] [stderr]   |        ^ help: convert the identifier to upper case (notice the capitalization): `Y`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `z` should have an upper case name
[INFO] [stderr]  --> src/bin/02-常量.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | static mut z: i32 = 5;
[INFO] [stderr]   |            ^ help: convert the identifier to upper case (notice the capitalization): `Z`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "04062a01c1bd21d2d785b8e28e7b47ac8cfdfe360582ddc6bf70d1047da060e7"`
[INFO] running `"docker" "rm" "-f" "04062a01c1bd21d2d785b8e28e7b47ac8cfdfe360582ddc6bf70d1047da060e7"`
[INFO] [stdout] 04062a01c1bd21d2d785b8e28e7b47ac8cfdfe360582ddc6bf70d1047da060e7