Dec 05 05:06:27.088 INFO checking tshell-0.2.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 05:06:27.088 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 05:06:27.519 INFO [stdout] 921d977d58faa2ffedd865532b08a830e12d3aa7491bbc2d4d6d3c5ec3664dce
Dec 05 05:06:27.527 INFO running `"docker" "start" "-a" "921d977d58faa2ffedd865532b08a830e12d3aa7491bbc2d4d6d3c5ec3664dce"`
Dec 05 05:06:28.768 INFO [stderr] usermod: no changes
Dec 05 05:06:28.863 INFO [stderr]     Checking nix v0.5.1
Dec 05 05:06:32.036 INFO [stderr]     Checking rustyline v1.0.0
Dec 05 05:06:33.027 INFO [stderr]     Checking tshell v0.2.2 (/source)
Dec 05 05:06:33.927 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 05:06:33.927 INFO [stderr]    --> src/commands.rs:312:42
Dec 05 05:06:33.927 INFO [stderr]     |
Dec 05 05:06:33.927 INFO [stderr] 312 |             context: Arc::new(Mutex::new((context)))
Dec 05 05:06:33.927 INFO [stderr]     |                                          ^^^^^^^^^ help: remove these parentheses
Dec 05 05:06:33.927 INFO [stderr]     |
Dec 05 05:06:33.927 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 05 05:06:33.927 INFO [stderr] 
Dec 05 05:06:33.967 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 05 05:06:33.967 INFO [stderr]    --> src/commands.rs:394:24
Dec 05 05:06:33.967 INFO [stderr]     |
Dec 05 05:06:33.967 INFO [stderr] 394 |         let home_dir = env::home_dir()
Dec 05 05:06:33.967 INFO [stderr]     |                        ^^^^^^^^^^^^^
Dec 05 05:06:33.967 INFO [stderr]     |
Dec 05 05:06:33.967 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 05 05:06:33.967 INFO [stderr] 
Dec 05 05:06:34.007 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 05:06:34.007 INFO [stderr]    --> src/commands.rs:312:42
Dec 05 05:06:34.007 INFO [stderr]     |
Dec 05 05:06:34.007 INFO [stderr] 312 |             context: Arc::new(Mutex::new((context)))
Dec 05 05:06:34.007 INFO [stderr]     |                                          ^^^^^^^^^ help: remove these parentheses
Dec 05 05:06:34.007 INFO [stderr]     |
Dec 05 05:06:34.007 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 05 05:06:34.007 INFO [stderr] 
Dec 05 05:06:34.048 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 05 05:06:34.048 INFO [stderr]    --> src/commands.rs:394:24
Dec 05 05:06:34.048 INFO [stderr]     |
Dec 05 05:06:34.048 INFO [stderr] 394 |         let home_dir = env::home_dir()
Dec 05 05:06:34.048 INFO [stderr]     |                        ^^^^^^^^^^^^^
Dec 05 05:06:34.048 INFO [stderr]     |
Dec 05 05:06:34.048 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 05 05:06:34.048 INFO [stderr] 
Dec 05 05:06:35.379 INFO [stderr] warning: unused variable: `args`
Dec 05 05:06:35.379 INFO [stderr]   --> examples/example.rs:12:10
Dec 05 05:06:35.379 INFO [stderr]    |
Dec 05 05:06:35.379 INFO [stderr] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
Dec 05 05:06:35.379 INFO [stderr]    |          ^^^^ help: consider using `_args` instead
Dec 05 05:06:35.379 INFO [stderr]    |
Dec 05 05:06:35.379 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 05:06:35.379 INFO [stderr] 
Dec 05 05:06:35.379 INFO [stderr] warning: unused variable: `o_context`
Dec 05 05:06:35.379 INFO [stderr]   --> examples/example.rs:12:39
Dec 05 05:06:35.379 INFO [stderr]    |
Dec 05 05:06:35.379 INFO [stderr] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
Dec 05 05:06:35.379 INFO [stderr]    |                                       ^^^^^^^^^ help: consider using `_o_context` instead
Dec 05 05:06:35.379 INFO [stderr] 
Dec 05 05:06:35.383 INFO [stderr] warning: unused variable: `o_context`
Dec 05 05:06:35.383 INFO [stderr]   --> examples/example.rs:20:42
Dec 05 05:06:35.383 INFO [stderr]    |
Dec 05 05:06:35.383 INFO [stderr] 20 | fn darkness(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
Dec 05 05:06:35.383 INFO [stderr]    |                                          ^^^^^^^^^ help: consider using `_o_context` instead
Dec 05 05:06:35.383 INFO [stderr] 
Dec 05 05:06:35.383 INFO [stderr] warning: unused variable: `history`
Dec 05 05:06:35.383 INFO [stderr]   --> examples/example.rs:20:75
Dec 05 05:06:35.383 INFO [stderr]    |
Dec 05 05:06:35.383 INFO [stderr] 20 | fn darkness(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
Dec 05 05:06:35.383 INFO [stderr]    |                                                                           ^^^^^^^ help: consider using `_history` instead
Dec 05 05:06:35.383 INFO [stderr] 
Dec 05 05:06:35.383 INFO [stderr] warning: unused variable: `o_context`
Dec 05 05:06:35.383 INFO [stderr]   --> examples/example.rs:30:45
Dec 05 05:06:35.383 INFO [stderr]    |
Dec 05 05:06:35.383 INFO [stderr] 30 | fn new_context(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
Dec 05 05:06:35.383 INFO [stderr]    |                                             ^^^^^^^^^ help: consider using `_o_context` instead
Dec 05 05:06:35.383 INFO [stderr] 
Dec 05 05:06:35.383 INFO [stderr] warning: unused variable: `history`
Dec 05 05:06:35.383 INFO [stderr]   --> examples/example.rs:30:78
Dec 05 05:06:35.383 INFO [stderr]    |
Dec 05 05:06:35.383 INFO [stderr] 30 | fn new_context(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
Dec 05 05:06:35.383 INFO [stderr]    |                                                                              ^^^^^^^ help: consider using `_history` instead
Dec 05 05:06:35.383 INFO [stderr] 
Dec 05 05:06:35.391 INFO [stderr] warning: variable does not need to be mutable
Dec 05 05:06:35.391 INFO [stderr]   --> examples/example.rs:42:9
Dec 05 05:06:35.391 INFO [stderr]    |
Dec 05 05:06:35.391 INFO [stderr] 42 |     let mut context = Context::default();
Dec 05 05:06:35.391 INFO [stderr]    |         ----^^^^^^^
Dec 05 05:06:35.391 INFO [stderr]    |         |
Dec 05 05:06:35.391 INFO [stderr]    |         help: remove this `mut`
Dec 05 05:06:35.391 INFO [stderr]    |
Dec 05 05:06:35.391 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 05:06:35.391 INFO [stderr] 
Dec 05 05:06:35.391 INFO [stderr] warning: variable does not need to be mutable
Dec 05 05:06:35.391 INFO [stderr]   --> examples/example.rs:43:9
Dec 05 05:06:35.391 INFO [stderr]    |
Dec 05 05:06:35.391 INFO [stderr] 43 |     let mut o_context = Some(context);
Dec 05 05:06:35.391 INFO [stderr]    |         ----^^^^^^^^^
Dec 05 05:06:35.391 INFO [stderr]    |         |
Dec 05 05:06:35.391 INFO [stderr]    |         help: remove this `mut`
Dec 05 05:06:35.391 INFO [stderr] 
Dec 05 05:06:35.420 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.62s
Dec 05 05:06:35.424 INFO [stderr] su: No module specific data is present
Dec 05 05:06:35.757 INFO running `"docker" "inspect" "921d977d58faa2ffedd865532b08a830e12d3aa7491bbc2d4d6d3c5ec3664dce"`
Dec 05 05:06:35.842 INFO running `"docker" "rm" "-f" "921d977d58faa2ffedd865532b08a830e12d3aa7491bbc2d4d6d3c5ec3664dce"`
Dec 05 05:06:36.003 INFO [stdout] 921d977d58faa2ffedd865532b08a830e12d3aa7491bbc2d4d6d3c5ec3664dce