Dec 05 06:27:12.397 INFO testing stan4cb/rust-tools against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 06:27:12.398 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 06:27:12.953 INFO [stdout] b5def73e51a54a74374052ef931ee20c060b1b9e7ad51de9e72974e32c386485
Dec 05 06:27:12.958 INFO running `"docker" "start" "-a" "b5def73e51a54a74374052ef931ee20c060b1b9e7ad51de9e72974e32c386485"`
Dec 05 06:27:14.352 INFO [stderr] usermod: no changes
Dec 05 06:27:14.420 INFO [stderr]    Compiling rust-tools v0.1.0 (/source)
Dec 05 06:27:14.829 INFO [stderr] warning: unused import: `Write`
Dec 05 06:27:14.829 INFO [stderr]  --> src/main.rs:2:21
Dec 05 06:27:14.829 INFO [stderr]   |
Dec 05 06:27:14.829 INFO [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom};
Dec 05 06:27:14.830 INFO [stderr]   |                     ^^^^^
Dec 05 06:27:14.830 INFO [stderr]   |
Dec 05 06:27:14.830 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 06:27:14.831 INFO [stderr] 
Dec 05 06:27:14.831 INFO [stderr] warning: unused import: `Read`
Dec 05 06:27:14.831 INFO [stderr]  --> src/tools.rs:3:15
Dec 05 06:27:14.831 INFO [stderr]   |
Dec 05 06:27:14.832 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 05 06:27:14.832 INFO [stderr]   |               ^^^^
Dec 05 06:27:14.832 INFO [stderr] 
Dec 05 06:27:14.984 INFO [stderr] warning: unused variable: `res`
Dec 05 06:27:14.984 INFO [stderr]    --> src/main.rs:135:24
Dec 05 06:27:14.984 INFO [stderr]     |
Dec 05 06:27:14.984 INFO [stderr] 135 |                     Ok(res) => {
Dec 05 06:27:14.984 INFO [stderr]     |                        ^^^ help: consider using `_res` instead
Dec 05 06:27:14.984 INFO [stderr]     |
Dec 05 06:27:14.984 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 06:27:14.984 INFO [stderr] 
Dec 05 06:27:15.022 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:15.022 INFO [stderr]    --> src/main.rs:131:17
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr] 131 |                 file.read_exact(&mut x);
Dec 05 06:27:15.022 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 06:27:15.022 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:15.022 INFO [stderr] 
Dec 05 06:27:15.022 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:15.022 INFO [stderr]    --> src/main.rs:138:25
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr] 138 |                         file.read_exact(&mut a);
Dec 05 06:27:15.022 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:15.022 INFO [stderr] 
Dec 05 06:27:15.022 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:15.022 INFO [stderr]    --> src/main.rs:141:25
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr] 141 |                         file.read_exact(&mut a);
Dec 05 06:27:15.022 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:15.022 INFO [stderr] 
Dec 05 06:27:15.022 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:15.022 INFO [stderr]    --> src/main.rs:144:25
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr] 144 |                         file.read_exact(&mut a);
Dec 05 06:27:15.022 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:15.022 INFO [stderr]     |
Dec 05 06:27:15.022 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:15.022 INFO [stderr] 
Dec 05 06:27:15.983 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
Dec 05 06:27:15.986 INFO [stderr] su: No module specific data is present
Dec 05 06:27:16.951 INFO running `"docker" "inspect" "b5def73e51a54a74374052ef931ee20c060b1b9e7ad51de9e72974e32c386485"`
Dec 05 06:27:17.326 INFO running `"docker" "rm" "-f" "b5def73e51a54a74374052ef931ee20c060b1b9e7ad51de9e72974e32c386485"`
Dec 05 06:27:17.664 INFO [stdout] b5def73e51a54a74374052ef931ee20c060b1b9e7ad51de9e72974e32c386485
Dec 05 06:27:17.670 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 06:27:18.104 INFO [stdout] 2f180992e0a3efd3c38ea1f737c3368f65781265050baf2f78a826cdc3dc683c
Dec 05 06:27:18.106 INFO running `"docker" "start" "-a" "2f180992e0a3efd3c38ea1f737c3368f65781265050baf2f78a826cdc3dc683c"`
Dec 05 06:27:19.883 INFO [stderr] usermod: no changes
Dec 05 06:27:19.944 INFO [stderr]    Compiling rust-tools v0.1.0 (/source)
Dec 05 06:27:20.310 INFO [stderr] warning: unused import: `Write`
Dec 05 06:27:20.310 INFO [stderr]  --> src/main.rs:2:21
Dec 05 06:27:20.310 INFO [stderr]   |
Dec 05 06:27:20.310 INFO [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom};
Dec 05 06:27:20.310 INFO [stderr]   |                     ^^^^^
Dec 05 06:27:20.310 INFO [stderr]   |
Dec 05 06:27:20.310 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 06:27:20.310 INFO [stderr] 
Dec 05 06:27:20.310 INFO [stderr] warning: unused import: `Read`
Dec 05 06:27:20.310 INFO [stderr]  --> src/tools.rs:3:15
Dec 05 06:27:20.310 INFO [stderr]   |
Dec 05 06:27:20.310 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 05 06:27:20.310 INFO [stderr]   |               ^^^^
Dec 05 06:27:20.310 INFO [stderr] 
Dec 05 06:27:20.471 INFO [stderr] warning: unused variable: `res`
Dec 05 06:27:20.471 INFO [stderr]    --> src/main.rs:135:24
Dec 05 06:27:20.471 INFO [stderr]     |
Dec 05 06:27:20.471 INFO [stderr] 135 |                     Ok(res) => {
Dec 05 06:27:20.471 INFO [stderr]     |                        ^^^ help: consider using `_res` instead
Dec 05 06:27:20.471 INFO [stderr]     |
Dec 05 06:27:20.471 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 06:27:20.471 INFO [stderr] 
Dec 05 06:27:20.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:20.514 INFO [stderr]    --> src/main.rs:131:17
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr] 131 |                 file.read_exact(&mut x);
Dec 05 06:27:20.514 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 06:27:20.514 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:20.514 INFO [stderr] 
Dec 05 06:27:20.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:20.514 INFO [stderr]    --> src/main.rs:138:25
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr] 138 |                         file.read_exact(&mut a);
Dec 05 06:27:20.514 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:20.514 INFO [stderr] 
Dec 05 06:27:20.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:20.514 INFO [stderr]    --> src/main.rs:141:25
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr] 141 |                         file.read_exact(&mut a);
Dec 05 06:27:20.514 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:20.514 INFO [stderr] 
Dec 05 06:27:20.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:27:20.514 INFO [stderr]    --> src/main.rs:144:25
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr] 144 |                         file.read_exact(&mut a);
Dec 05 06:27:20.514 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:27:20.514 INFO [stderr]     |
Dec 05 06:27:20.514 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:27:20.514 INFO [stderr] 
Dec 05 06:27:20.960 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 05 06:27:20.960 INFO [stderr] su: No module specific data is present
Dec 05 06:27:21.857 INFO running `"docker" "inspect" "2f180992e0a3efd3c38ea1f737c3368f65781265050baf2f78a826cdc3dc683c"`
Dec 05 06:27:22.162 INFO running `"docker" "rm" "-f" "2f180992e0a3efd3c38ea1f737c3368f65781265050baf2f78a826cdc3dc683c"`
Dec 05 06:27:22.459 INFO [stdout] 2f180992e0a3efd3c38ea1f737c3368f65781265050baf2f78a826cdc3dc683c
Dec 05 06:27:22.466 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 06:27:22.800 INFO [stdout] d5c664c202e8ff6d3d15937ea14709be0bac2f9f1b6b6c9eba4e0c464e041892
Dec 05 06:27:22.802 INFO running `"docker" "start" "-a" "d5c664c202e8ff6d3d15937ea14709be0bac2f9f1b6b6c9eba4e0c464e041892"`
Dec 05 06:27:24.472 INFO [stderr] usermod: no changes
Dec 05 06:27:24.544 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 05 06:27:24.544 INFO [stderr]      Running /target/debug/deps/rust_tools-5aaf0c28a3482c6f
Dec 05 06:27:24.549 INFO [stderr] su: No module specific data is present
Dec 05 06:27:24.549 INFO [stdout] 
Dec 05 06:27:24.549 INFO [stdout] running 0 tests
Dec 05 06:27:24.549 INFO [stdout] 
Dec 05 06:27:24.549 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 06:27:24.549 INFO [stdout] 
Dec 05 06:27:25.342 INFO running `"docker" "inspect" "d5c664c202e8ff6d3d15937ea14709be0bac2f9f1b6b6c9eba4e0c464e041892"`
Dec 05 06:27:25.619 INFO running `"docker" "rm" "-f" "d5c664c202e8ff6d3d15937ea14709be0bac2f9f1b6b6c9eba4e0c464e041892"`
Dec 05 06:27:25.972 INFO [stdout] d5c664c202e8ff6d3d15937ea14709be0bac2f9f1b6b6c9eba4e0c464e041892