[INFO] updating cached repository JasonSmith/signal
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JasonSmith/signal
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JasonSmith/signal" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/JasonSmith/signal"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/JasonSmith/signal'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JasonSmith/signal" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/JasonSmith/signal"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/JasonSmith/signal'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e159586c0627ce1c53dfa070a0a703b0ca604e7a
[INFO] sha for GitHub repo JasonSmith/signal: e159586c0627ce1c53dfa070a0a703b0ca604e7a
[INFO] validating manifest of JasonSmith/signal on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JasonSmith/signal on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JasonSmith/signal
[INFO] finished frobbing JasonSmith/signal
[INFO] frobbed toml for JasonSmith/signal written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/JasonSmith/signal/Cargo.toml
[INFO] started frobbing JasonSmith/signal
[INFO] finished frobbing JasonSmith/signal
[INFO] frobbed toml for JasonSmith/signal written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/JasonSmith/signal/Cargo.toml
[INFO] crate JasonSmith/signal already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking JasonSmith/signal against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-7/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/JasonSmith/signal:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4c3f05c90e102b9921a2f6cccb031da6321551bee452d30f842c6d5d0e708658
[INFO] running `"docker" "start" "-a" "4c3f05c90e102b9921a2f6cccb031da6321551bee452d30f842c6d5d0e708658"`
[INFO] [stderr]     Checking signal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `TypeId`
[INFO] [stderr]  --> src/signal.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::{Any, TypeId};
[INFO] [stderr]   |                     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::hash_map::HashMap`
[INFO] [stderr]  --> src/signal.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::hash_map::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `callback`
[INFO] [stderr]   --> src/signal.rs:84:46
[INFO] [stderr]    |
[INFO] [stderr] 84 |    pub fn disconnect_with_data<F>(&mut self, callback: F)
[INFO] [stderr]    |                                              ^^^^^^^^ help: consider prefixing with an underscore: `_callback`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TypeId`
[INFO] [stderr]  --> src/signal.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::{Any, TypeId};
[INFO] [stderr]   |                     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::hash_map::HashMap`
[INFO] [stderr]  --> src/signal.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::hash_map::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CallbackID`
[INFO] [stderr]  --> src/signal.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type CallbackID = usize;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `callback`
[INFO] [stderr]   --> src/signal.rs:84:46
[INFO] [stderr]    |
[INFO] [stderr] 84 |    pub fn disconnect_with_data<F>(&mut self, callback: F)
[INFO] [stderr]    |                                              ^^^^^^^^ help: consider prefixing with an underscore: `_callback`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CallbackID`
[INFO] [stderr]  --> src/signal.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type CallbackID = usize;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "4c3f05c90e102b9921a2f6cccb031da6321551bee452d30f842c6d5d0e708658"`
[INFO] running `"docker" "rm" "-f" "4c3f05c90e102b9921a2f6cccb031da6321551bee452d30f842c6d5d0e708658"`
[INFO] [stdout] 4c3f05c90e102b9921a2f6cccb031da6321551bee452d30f842c6d5d0e708658