Oct 12 23:50:27.334 INFO checking cedricleroy/rust-tuto against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 23:50:27.336 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-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"`
Oct 12 23:50:27.771 INFO blam! fd6918a6d397871f003c2efdf35fbfa621ef14b1a5969eddac276d941154b8c2
Oct 12 23:50:27.772 INFO running `"docker" "start" "-a" "fd6918a6d397871f003c2efdf35fbfa621ef14b1a5969eddac276d941154b8c2"`
Oct 12 23:50:29.063 INFO kablam! usermod: no changes
Oct 12 23:50:29.164 INFO kablam!     Checking rust-tuto v0.1.0 (/source)
Oct 12 23:50:29.896 INFO kablam! warning: value assigned to `y` is never read
Oct 12 23:50:29.896 INFO kablam!   --> src/main.rs:13:13
Oct 12 23:50:29.896 INFO kablam!    |
Oct 12 23:50:29.896 INFO kablam! 13 |     let mut y = 21;
Oct 12 23:50:29.896 INFO kablam!    |             ^
Oct 12 23:50:29.896 INFO kablam!    |
Oct 12 23:50:29.900 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 12 23:50:29.900 INFO kablam! 
Oct 12 23:50:29.916 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 23:50:29.916 INFO kablam!   --> src/json.rs:12:5
Oct 12 23:50:29.916 INFO kablam!    |
Oct 12 23:50:29.916 INFO kablam! 12 |     file.read_to_string(&mut content);
Oct 12 23:50:29.916 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:50:29.916 INFO kablam!    |
Oct 12 23:50:29.916 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 23:50:29.916 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 23:50:29.916 INFO kablam! 
Oct 12 23:50:30.155 INFO kablam! warning: value assigned to `y` is never read
Oct 12 23:50:30.156 INFO kablam!   --> src/main.rs:13:13
Oct 12 23:50:30.156 INFO kablam!    |
Oct 12 23:50:30.156 INFO kablam! 13 |     let mut y = 21;
Oct 12 23:50:30.156 INFO kablam!    |             ^
Oct 12 23:50:30.156 INFO kablam!    |
Oct 12 23:50:30.156 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 12 23:50:30.156 INFO kablam! 
Oct 12 23:50:30.181 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 23:50:30.181 INFO kablam!   --> src/json.rs:12:5
Oct 12 23:50:30.182 INFO kablam!    |
Oct 12 23:50:30.182 INFO kablam! 12 |     file.read_to_string(&mut content);
Oct 12 23:50:30.182 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 23:50:30.182 INFO kablam!    |
Oct 12 23:50:30.183 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 23:50:30.183 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 23:50:30.183 INFO kablam! 
Oct 12 23:50:30.210 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Oct 12 23:50:30.213 INFO kablam! su: No module specific data is present
Oct 12 23:50:30.948 INFO running `"docker" "rm" "-f" "fd6918a6d397871f003c2efdf35fbfa621ef14b1a5969eddac276d941154b8c2"`
Oct 12 23:50:31.328 INFO blam! fd6918a6d397871f003c2efdf35fbfa621ef14b1a5969eddac276d941154b8c2