Dec 12 09:31:43.181 INFO checking quill-delta-0.0.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 09:31:43.181 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 09:31:43.737 INFO [stdout] 4c32700907d7ae7713becd2051c645598be1fa911a75331343da27953bedcdfb
Dec 12 09:31:43.744 INFO running `"docker" "start" "-a" "4c32700907d7ae7713becd2051c645598be1fa911a75331343da27953bedcdfb"`
Dec 12 09:31:45.833 INFO [stderr] usermod: no changes
Dec 12 09:31:45.916 INFO [stderr]     Checking quill-delta v0.0.1 (/source)
Dec 12 09:31:47.392 INFO [stderr] warning: unused variable: `text`
Dec 12 09:31:47.392 INFO [stderr]   --> src/lib.rs:40:46
Dec 12 09:31:47.392 INFO [stderr]    |
Dec 12 09:31:47.392 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 12 09:31:47.392 INFO [stderr]    |                                              ^^^^ help: consider using `_text` instead
Dec 12 09:31:47.392 INFO [stderr]    |
Dec 12 09:31:47.392 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 09:31:47.392 INFO [stderr] 
Dec 12 09:31:47.392 INFO [stderr] warning: unused variable: `attributes`
Dec 12 09:31:47.392 INFO [stderr]   --> src/lib.rs:40:55
Dec 12 09:31:47.392 INFO [stderr]    |
Dec 12 09:31:47.393 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 12 09:31:47.393 INFO [stderr]    |                                                       ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 12 09:31:47.393 INFO [stderr] 
Dec 12 09:31:47.393 INFO [stderr] warning: unused variable: `length`
Dec 12 09:31:47.393 INFO [stderr]   --> src/lib.rs:44:29
Dec 12 09:31:47.393 INFO [stderr]    |
Dec 12 09:31:47.393 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 12 09:31:47.393 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 12 09:31:47.393 INFO [stderr] 
Dec 12 09:31:47.393 INFO [stderr] warning: unused variable: `length`
Dec 12 09:31:47.393 INFO [stderr]   --> src/lib.rs:48:29
Dec 12 09:31:47.393 INFO [stderr]    |
Dec 12 09:31:47.393 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 12 09:31:47.393 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 12 09:31:47.393 INFO [stderr] 
Dec 12 09:31:47.393 INFO [stderr] warning: unused variable: `attributes`
Dec 12 09:31:47.393 INFO [stderr]   --> src/lib.rs:48:44
Dec 12 09:31:47.393 INFO [stderr]    |
Dec 12 09:31:47.393 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 12 09:31:47.393 INFO [stderr]    |                                            ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 12 09:31:47.393 INFO [stderr] 
Dec 12 09:31:47.393 INFO [stderr] warning: unused variable: `op`
Dec 12 09:31:47.393 INFO [stderr]   --> src/lib.rs:52:27
Dec 12 09:31:47.393 INFO [stderr]    |
Dec 12 09:31:47.393 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 12 09:31:47.393 INFO [stderr]    |                           ^^ help: consider using `_op` instead
Dec 12 09:31:47.393 INFO [stderr] 
Dec 12 09:31:47.408 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.408 INFO [stderr]   --> src/lib.rs:40:36
Dec 12 09:31:47.408 INFO [stderr]    |
Dec 12 09:31:47.408 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 12 09:31:47.408 INFO [stderr]    |                                    ----^^^^
Dec 12 09:31:47.408 INFO [stderr]    |                                    |
Dec 12 09:31:47.408 INFO [stderr]    |                                    help: remove this `mut`
Dec 12 09:31:47.408 INFO [stderr]    |
Dec 12 09:31:47.408 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 09:31:47.408 INFO [stderr] 
Dec 12 09:31:47.408 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.408 INFO [stderr]   --> src/lib.rs:44:19
Dec 12 09:31:47.408 INFO [stderr]    |
Dec 12 09:31:47.408 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 12 09:31:47.408 INFO [stderr]    |                   ----^^^^
Dec 12 09:31:47.408 INFO [stderr]    |                   |
Dec 12 09:31:47.408 INFO [stderr]    |                   help: remove this `mut`
Dec 12 09:31:47.408 INFO [stderr] 
Dec 12 09:31:47.412 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.412 INFO [stderr]   --> src/lib.rs:48:19
Dec 12 09:31:47.412 INFO [stderr]    |
Dec 12 09:31:47.412 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 12 09:31:47.412 INFO [stderr]    |                   ----^^^^
Dec 12 09:31:47.412 INFO [stderr]    |                   |
Dec 12 09:31:47.412 INFO [stderr]    |                   help: remove this `mut`
Dec 12 09:31:47.412 INFO [stderr] 
Dec 12 09:31:47.412 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.412 INFO [stderr]   --> src/lib.rs:52:17
Dec 12 09:31:47.412 INFO [stderr]    |
Dec 12 09:31:47.412 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 12 09:31:47.412 INFO [stderr]    |                 ----^^^^
Dec 12 09:31:47.412 INFO [stderr]    |                 |
Dec 12 09:31:47.412 INFO [stderr]    |                 help: remove this `mut`
Dec 12 09:31:47.412 INFO [stderr] 
Dec 12 09:31:47.412 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.412 INFO [stderr]   --> src/lib.rs:56:17
Dec 12 09:31:47.412 INFO [stderr]    |
Dec 12 09:31:47.412 INFO [stderr] 56 |     pub fn chop(mut self) {}
Dec 12 09:31:47.412 INFO [stderr]    |                 ----^^^^
Dec 12 09:31:47.412 INFO [stderr]    |                 |
Dec 12 09:31:47.412 INFO [stderr]    |                 help: remove this `mut`
Dec 12 09:31:47.412 INFO [stderr] 
Dec 12 09:31:47.676 INFO [stderr] warning: unused variable: `op`
Dec 12 09:31:47.676 INFO [stderr]    --> src/lib.rs:181:9
Dec 12 09:31:47.676 INFO [stderr]     |
Dec 12 09:31:47.676 INFO [stderr] 181 |     let op: DeltaOperation = serde_json::from_str(r#"{ "insert": "Hallo" }"#).unwrap();
Dec 12 09:31:47.676 INFO [stderr]     |         ^^ help: consider using `_op` instead
Dec 12 09:31:47.676 INFO [stderr]     |
Dec 12 09:31:47.676 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 09:31:47.676 INFO [stderr] 
Dec 12 09:31:47.676 INFO [stderr] warning: unused variable: `op`
Dec 12 09:31:47.676 INFO [stderr]    --> src/lib.rs:182:9
Dec 12 09:31:47.677 INFO [stderr]     |
Dec 12 09:31:47.677 INFO [stderr] 182 |     let op: DeltaOperation = serde_json::from_str(r#"{ "retain": 10 }"#).unwrap();
Dec 12 09:31:47.677 INFO [stderr]     |         ^^ help: consider using `_op` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `op`
Dec 12 09:31:47.677 INFO [stderr]    --> src/lib.rs:183:9
Dec 12 09:31:47.677 INFO [stderr]     |
Dec 12 09:31:47.677 INFO [stderr] 183 |     let op: DeltaOperation = serde_json::from_str(r#"{ "delete": 10 }"#).unwrap();
Dec 12 09:31:47.677 INFO [stderr]     |         ^^ help: consider using `_op` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `text`
Dec 12 09:31:47.677 INFO [stderr]   --> src/lib.rs:40:46
Dec 12 09:31:47.677 INFO [stderr]    |
Dec 12 09:31:47.677 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 12 09:31:47.677 INFO [stderr]    |                                              ^^^^ help: consider using `_text` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `attributes`
Dec 12 09:31:47.677 INFO [stderr]   --> src/lib.rs:40:55
Dec 12 09:31:47.677 INFO [stderr]    |
Dec 12 09:31:47.677 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 12 09:31:47.677 INFO [stderr]    |                                                       ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `length`
Dec 12 09:31:47.677 INFO [stderr]   --> src/lib.rs:44:29
Dec 12 09:31:47.677 INFO [stderr]    |
Dec 12 09:31:47.677 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 12 09:31:47.677 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `length`
Dec 12 09:31:47.677 INFO [stderr]   --> src/lib.rs:48:29
Dec 12 09:31:47.677 INFO [stderr]    |
Dec 12 09:31:47.677 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 12 09:31:47.677 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `attributes`
Dec 12 09:31:47.677 INFO [stderr]   --> src/lib.rs:48:44
Dec 12 09:31:47.677 INFO [stderr]    |
Dec 12 09:31:47.677 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 12 09:31:47.677 INFO [stderr]    |                                            ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.677 INFO [stderr] warning: unused variable: `op`
Dec 12 09:31:47.677 INFO [stderr]   --> src/lib.rs:52:27
Dec 12 09:31:47.677 INFO [stderr]    |
Dec 12 09:31:47.677 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 12 09:31:47.677 INFO [stderr]    |                           ^^ help: consider using `_op` instead
Dec 12 09:31:47.677 INFO [stderr] 
Dec 12 09:31:47.696 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.696 INFO [stderr]   --> src/lib.rs:40:36
Dec 12 09:31:47.696 INFO [stderr]    |
Dec 12 09:31:47.696 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 12 09:31:47.696 INFO [stderr]    |                                    ----^^^^
Dec 12 09:31:47.696 INFO [stderr]    |                                    |
Dec 12 09:31:47.696 INFO [stderr]    |                                    help: remove this `mut`
Dec 12 09:31:47.696 INFO [stderr]    |
Dec 12 09:31:47.696 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 09:31:47.696 INFO [stderr] 
Dec 12 09:31:47.696 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.696 INFO [stderr]   --> src/lib.rs:44:19
Dec 12 09:31:47.696 INFO [stderr]    |
Dec 12 09:31:47.696 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 12 09:31:47.696 INFO [stderr]    |                   ----^^^^
Dec 12 09:31:47.696 INFO [stderr]    |                   |
Dec 12 09:31:47.696 INFO [stderr]    |                   help: remove this `mut`
Dec 12 09:31:47.697 INFO [stderr] 
Dec 12 09:31:47.697 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.697 INFO [stderr]   --> src/lib.rs:48:19
Dec 12 09:31:47.697 INFO [stderr]    |
Dec 12 09:31:47.697 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 12 09:31:47.697 INFO [stderr]    |                   ----^^^^
Dec 12 09:31:47.697 INFO [stderr]    |                   |
Dec 12 09:31:47.697 INFO [stderr]    |                   help: remove this `mut`
Dec 12 09:31:47.697 INFO [stderr] 
Dec 12 09:31:47.697 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.697 INFO [stderr]   --> src/lib.rs:52:17
Dec 12 09:31:47.697 INFO [stderr]    |
Dec 12 09:31:47.697 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 12 09:31:47.697 INFO [stderr]    |                 ----^^^^
Dec 12 09:31:47.697 INFO [stderr]    |                 |
Dec 12 09:31:47.697 INFO [stderr]    |                 help: remove this `mut`
Dec 12 09:31:47.697 INFO [stderr] 
Dec 12 09:31:47.697 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:31:47.697 INFO [stderr]   --> src/lib.rs:56:17
Dec 12 09:31:47.697 INFO [stderr]    |
Dec 12 09:31:47.697 INFO [stderr] 56 |     pub fn chop(mut self) {}
Dec 12 09:31:47.697 INFO [stderr]    |                 ----^^^^
Dec 12 09:31:47.697 INFO [stderr]    |                 |
Dec 12 09:31:47.697 INFO [stderr]    |                 help: remove this `mut`
Dec 12 09:31:47.697 INFO [stderr] 
Dec 12 09:31:47.776 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
Dec 12 09:31:47.782 INFO [stderr] su: No module specific data is present
Dec 12 09:31:48.370 INFO running `"docker" "inspect" "4c32700907d7ae7713becd2051c645598be1fa911a75331343da27953bedcdfb"`
Dec 12 09:31:48.622 INFO running `"docker" "rm" "-f" "4c32700907d7ae7713becd2051c645598be1fa911a75331343da27953bedcdfb"`
Dec 12 09:31:48.928 INFO [stdout] 4c32700907d7ae7713becd2051c645598be1fa911a75331343da27953bedcdfb