[INFO] fetching crate tshell 0.2.2...
[INFO] checking tshell-0.2.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate tshell 0.2.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate tshell 0.2.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tshell 0.2.2
[INFO] finished tweaking crates.io crate tshell 0.2.2
[INFO] tweaked toml for crates.io crate tshell 0.2.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b069f80c8c8087c493bf37dfc5efa218d4e6d0a23890608d5d69fde399b41be2
[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" "b069f80c8c8087c493bf37dfc5efa218d4e6d0a23890608d5d69fde399b41be2"`
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking tshell v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub type CallBack<T> = Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/commands.rs:312:42
[INFO] [stderr]     |
[INFO] [stderr] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stderr]     |                                          ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[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.
[INFO] [stderr]    --> src/commands.rs:394:24
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let home_dir = env::home_dir()
[INFO] [stderr]     |                        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub type CallBack<T> = Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(HashMap<String, &str>, &mut Option<T>, &HashMap<String, String>) -> CommandResult<Option<String>>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/commands.rs:312:42
[INFO] [stderr]     |
[INFO] [stderr] 312 |             context: Arc::new(Mutex::new((context)))
[INFO] [stderr]     |                                          ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/commands.rs:321:42
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stderr]     |                                          ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr] 
[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.
[INFO] [stderr]    --> src/commands.rs:394:24
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let home_dir = env::home_dir()
[INFO] [stderr]     |                        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/commands.rs:321:42
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let mut levels: Vec<&str> = line.trim_left().split_whitespace().collect();
[INFO] [stderr]     |                                          ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> examples/example.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |          ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o_context`
[INFO] [stderr]   --> examples/example.rs:12:39
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn world(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                                       ^^^^^^^^^ help: consider prefixing with an underscore: `_o_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o_context`
[INFO] [stderr]   --> examples/example.rs:20:42
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn darkness(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                                          ^^^^^^^^^ help: consider prefixing with an underscore: `_o_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `history`
[INFO] [stderr]   --> examples/example.rs:20:75
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn darkness(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                                                                           ^^^^^^^ help: consider prefixing with an underscore: `_history`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `o_context`
[INFO] [stderr]   --> examples/example.rs:30:45
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn new_context(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: consider prefixing with an underscore: `_o_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `history`
[INFO] [stderr]   --> examples/example.rs:30:78
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn new_context(args: HashMap<String, &str>, o_context: &mut Option<Context>, history: &HashMap<String, String>) -> CommandResult<Option<String>> {
[INFO] [stderr]    |                                                                              ^^^^^^^ help: consider prefixing with an underscore: `_history`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/example.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut context = Context::default();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/example.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut o_context = Some(context);
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.94s
[INFO] running `"docker" "inspect" "b069f80c8c8087c493bf37dfc5efa218d4e6d0a23890608d5d69fde399b41be2"`
[INFO] running `"docker" "rm" "-f" "b069f80c8c8087c493bf37dfc5efa218d4e6d0a23890608d5d69fde399b41be2"`
[INFO] [stdout] b069f80c8c8087c493bf37dfc5efa218d4e6d0a23890608d5d69fde399b41be2