[INFO] cloning repository https://github.com/SachinMaharana/sandbox-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SachinMaharana/sandbox-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSachinMaharana%2Fsandbox-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSachinMaharana%2Fsandbox-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d7de0c95adf740d96ecb83577e44f86bccb25312
[INFO] checking SachinMaharana/sandbox-rust against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSachinMaharana%2Fsandbox-rust" "/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/SachinMaharana/sandbox-rust on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SachinMaharana/sandbox-rust
[INFO] finished tweaking git repo https://github.com/SachinMaharana/sandbox-rust
[INFO] tweaked toml for git repo https://github.com/SachinMaharana/sandbox-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/SachinMaharana/sandbox-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fe0749755e01f4d80a784ac0d7c9dd021a394aa8df5421a5ac0c40418f5829db
[INFO] running `"docker" "start" "-a" "fe0749755e01f4d80a784ac0d7c9dd021a394aa8df5421a5ac0c40418f5829db"`
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking libnghttp2-sys v0.1.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking libz-sys v1.0.25
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking openssl v0.10.29
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]     Checking tracing v0.1.13
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking curl v0.4.28
[INFO] [stderr]     Checking tracing-futures v0.2.3
[INFO] [stderr]     Checking tokio v0.2.17
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking attohttpc v0.12.0
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]    Compiling async-log-attributes v1.0.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking isahc v0.8.2
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking http-client v1.1.1
[INFO] [stderr]     Checking async-log v1.1.0
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking telegram-bot-raw v0.7.0
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]     Checking surf v2.0.0-alpha.0
[INFO] [stderr]     Checking femme v1.3.0
[INFO] [stderr]     Checking telegram-bot v0.7.0
[INFO] [stderr]     Checking sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<i32>
[INFO] [stderr]  --> src/bin/docs1.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let b = Box::new(5);
[INFO] [stderr]   |             ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/bin/docs1.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     #![warn(box_pointers)]
[INFO] [stderr]   |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: &std::boxed::Box<i32>
[INFO] [stderr]  --> src/bin/docs1.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |     println!("b={}", b);
[INFO] [stderr]   |                      ^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<i32>
[INFO] [stderr]  --> src/bin/docs1.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |     println!("b={}", b);
[INFO] [stderr]   |                      ^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<List>
[INFO] [stderr]   --> src/bin/docs1.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil))))));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<List>
[INFO] [stderr]   --> src/bin/docs1.rs:10:42
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil))))));
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<List>
[INFO] [stderr]   --> src/bin/docs1.rs:10:59
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil))))));
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<i32>
[INFO] [stderr]   --> src/bin/docs1.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let z = Box::new(x);
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type uses owned (Box type) pointers: std::boxed::Box<i32>
[INFO] [stderr]   --> src/bin/docs1.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 |     assert_eq!(5, *z);
[INFO] [stderr]    |                    ^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `test`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/bin/test.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] error: could not compile `sandbox`.
[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: unused import: `futures::future::join_all`
[INFO] [stderr]  --> src/bin/asyn2.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use futures::future::join_all;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/asyn2.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         t.await;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "fe0749755e01f4d80a784ac0d7c9dd021a394aa8df5421a5ac0c40418f5829db"`
[INFO] running `"docker" "rm" "-f" "fe0749755e01f4d80a784ac0d7c9dd021a394aa8df5421a5ac0c40418f5829db"`
[INFO] [stdout] fe0749755e01f4d80a784ac0d7c9dd021a394aa8df5421a5ac0c40418f5829db