Dec 18 12:38:30.881 INFO checking quill-delta-0.0.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:38:30.881 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/quill-delta/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 12:38:31.341 INFO [stdout] 5a9d462d41129dcee262adc468c22cbf328e74ce424b44bdb2fbb26f9ed727c7
Dec 18 12:38:31.344 INFO running `"docker" "start" "-a" "5a9d462d41129dcee262adc468c22cbf328e74ce424b44bdb2fbb26f9ed727c7"`
Dec 18 12:38:32.456 INFO [stderr]     Checking quill-delta v0.0.1 (/opt/crater/workdir)
Dec 18 12:38:33.136 INFO [stderr] warning: unused variable: `text`
Dec 18 12:38:33.136 INFO [stderr]   --> src/lib.rs:40:46
Dec 18 12:38:33.136 INFO [stderr]    |
Dec 18 12:38:33.136 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 18 12:38:33.136 INFO [stderr]    |                                              ^^^^ help: consider using `_text` instead
Dec 18 12:38:33.136 INFO [stderr]    |
Dec 18 12:38:33.136 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 12:38:33.136 INFO [stderr] 
Dec 18 12:38:33.136 INFO [stderr] warning: unused variable: `attributes`
Dec 18 12:38:33.136 INFO [stderr]   --> src/lib.rs:40:55
Dec 18 12:38:33.136 INFO [stderr]    |
Dec 18 12:38:33.136 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 18 12:38:33.136 INFO [stderr]    |                                                       ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 18 12:38:33.136 INFO [stderr] 
Dec 18 12:38:33.136 INFO [stderr] warning: unused variable: `length`
Dec 18 12:38:33.136 INFO [stderr]   --> src/lib.rs:44:29
Dec 18 12:38:33.137 INFO [stderr]    |
Dec 18 12:38:33.137 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 18 12:38:33.137 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 18 12:38:33.137 INFO [stderr] 
Dec 18 12:38:33.137 INFO [stderr] warning: unused variable: `length`
Dec 18 12:38:33.137 INFO [stderr]   --> src/lib.rs:48:29
Dec 18 12:38:33.137 INFO [stderr]    |
Dec 18 12:38:33.137 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 18 12:38:33.137 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 18 12:38:33.137 INFO [stderr] 
Dec 18 12:38:33.137 INFO [stderr] warning: unused variable: `attributes`
Dec 18 12:38:33.137 INFO [stderr]   --> src/lib.rs:48:44
Dec 18 12:38:33.137 INFO [stderr]    |
Dec 18 12:38:33.137 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 18 12:38:33.137 INFO [stderr]    |                                            ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 18 12:38:33.137 INFO [stderr] 
Dec 18 12:38:33.140 INFO [stderr] warning: unused variable: `op`
Dec 18 12:38:33.140 INFO [stderr]   --> src/lib.rs:52:27
Dec 18 12:38:33.140 INFO [stderr]    |
Dec 18 12:38:33.140 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 18 12:38:33.140 INFO [stderr]    |                           ^^ help: consider using `_op` instead
Dec 18 12:38:33.140 INFO [stderr] 
Dec 18 12:38:33.156 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.156 INFO [stderr]   --> src/lib.rs:40:36
Dec 18 12:38:33.156 INFO [stderr]    |
Dec 18 12:38:33.156 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 18 12:38:33.156 INFO [stderr]    |                                    ----^^^^
Dec 18 12:38:33.156 INFO [stderr]    |                                    |
Dec 18 12:38:33.156 INFO [stderr]    |                                    help: remove this `mut`
Dec 18 12:38:33.156 INFO [stderr]    |
Dec 18 12:38:33.156 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 12:38:33.157 INFO [stderr] 
Dec 18 12:38:33.157 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.157 INFO [stderr]   --> src/lib.rs:44:19
Dec 18 12:38:33.157 INFO [stderr]    |
Dec 18 12:38:33.157 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 18 12:38:33.157 INFO [stderr]    |                   ----^^^^
Dec 18 12:38:33.157 INFO [stderr]    |                   |
Dec 18 12:38:33.157 INFO [stderr]    |                   help: remove this `mut`
Dec 18 12:38:33.157 INFO [stderr] 
Dec 18 12:38:33.157 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.157 INFO [stderr]   --> src/lib.rs:48:19
Dec 18 12:38:33.157 INFO [stderr]    |
Dec 18 12:38:33.157 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 18 12:38:33.157 INFO [stderr]    |                   ----^^^^
Dec 18 12:38:33.157 INFO [stderr]    |                   |
Dec 18 12:38:33.157 INFO [stderr]    |                   help: remove this `mut`
Dec 18 12:38:33.157 INFO [stderr] 
Dec 18 12:38:33.157 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.157 INFO [stderr]   --> src/lib.rs:52:17
Dec 18 12:38:33.157 INFO [stderr]    |
Dec 18 12:38:33.157 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 18 12:38:33.157 INFO [stderr]    |                 ----^^^^
Dec 18 12:38:33.157 INFO [stderr]    |                 |
Dec 18 12:38:33.157 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:38:33.157 INFO [stderr] 
Dec 18 12:38:33.157 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.157 INFO [stderr]   --> src/lib.rs:56:17
Dec 18 12:38:33.157 INFO [stderr]    |
Dec 18 12:38:33.157 INFO [stderr] 56 |     pub fn chop(mut self) {}
Dec 18 12:38:33.157 INFO [stderr]    |                 ----^^^^
Dec 18 12:38:33.157 INFO [stderr]    |                 |
Dec 18 12:38:33.157 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:38:33.157 INFO [stderr] 
Dec 18 12:38:33.448 INFO [stderr] warning: unused variable: `op`
Dec 18 12:38:33.448 INFO [stderr]    --> src/lib.rs:181:9
Dec 18 12:38:33.448 INFO [stderr]     |
Dec 18 12:38:33.448 INFO [stderr] 181 |     let op: DeltaOperation = serde_json::from_str(r#"{ "insert": "Hallo" }"#).unwrap();
Dec 18 12:38:33.448 INFO [stderr]     |         ^^ help: consider using `_op` instead
Dec 18 12:38:33.448 INFO [stderr]     |
Dec 18 12:38:33.448 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 12:38:33.448 INFO [stderr] 
Dec 18 12:38:33.448 INFO [stderr] warning: unused variable: `op`
Dec 18 12:38:33.448 INFO [stderr]    --> src/lib.rs:182:9
Dec 18 12:38:33.448 INFO [stderr]     |
Dec 18 12:38:33.448 INFO [stderr] 182 |     let op: DeltaOperation = serde_json::from_str(r#"{ "retain": 10 }"#).unwrap();
Dec 18 12:38:33.448 INFO [stderr]     |         ^^ help: consider using `_op` instead
Dec 18 12:38:33.448 INFO [stderr] 
Dec 18 12:38:33.448 INFO [stderr] warning: unused variable: `op`
Dec 18 12:38:33.448 INFO [stderr]    --> src/lib.rs:183:9
Dec 18 12:38:33.448 INFO [stderr]     |
Dec 18 12:38:33.448 INFO [stderr] 183 |     let op: DeltaOperation = serde_json::from_str(r#"{ "delete": 10 }"#).unwrap();
Dec 18 12:38:33.449 INFO [stderr]     |         ^^ help: consider using `_op` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.449 INFO [stderr] warning: unused variable: `text`
Dec 18 12:38:33.449 INFO [stderr]   --> src/lib.rs:40:46
Dec 18 12:38:33.449 INFO [stderr]    |
Dec 18 12:38:33.449 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 18 12:38:33.449 INFO [stderr]    |                                              ^^^^ help: consider using `_text` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.449 INFO [stderr] warning: unused variable: `attributes`
Dec 18 12:38:33.449 INFO [stderr]   --> src/lib.rs:40:55
Dec 18 12:38:33.449 INFO [stderr]    |
Dec 18 12:38:33.449 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 18 12:38:33.449 INFO [stderr]    |                                                       ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.449 INFO [stderr] warning: unused variable: `length`
Dec 18 12:38:33.449 INFO [stderr]   --> src/lib.rs:44:29
Dec 18 12:38:33.449 INFO [stderr]    |
Dec 18 12:38:33.449 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 18 12:38:33.449 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.449 INFO [stderr] warning: unused variable: `length`
Dec 18 12:38:33.449 INFO [stderr]   --> src/lib.rs:48:29
Dec 18 12:38:33.449 INFO [stderr]    |
Dec 18 12:38:33.449 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 18 12:38:33.449 INFO [stderr]    |                             ^^^^^^ help: consider using `_length` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.449 INFO [stderr] warning: unused variable: `attributes`
Dec 18 12:38:33.449 INFO [stderr]   --> src/lib.rs:48:44
Dec 18 12:38:33.449 INFO [stderr]    |
Dec 18 12:38:33.449 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 18 12:38:33.449 INFO [stderr]    |                                            ^^^^^^^^^^ help: consider using `_attributes` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.449 INFO [stderr] warning: unused variable: `op`
Dec 18 12:38:33.449 INFO [stderr]   --> src/lib.rs:52:27
Dec 18 12:38:33.449 INFO [stderr]    |
Dec 18 12:38:33.449 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 18 12:38:33.449 INFO [stderr]    |                           ^^ help: consider using `_op` instead
Dec 18 12:38:33.449 INFO [stderr] 
Dec 18 12:38:33.481 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.481 INFO [stderr]   --> src/lib.rs:40:36
Dec 18 12:38:33.481 INFO [stderr]    |
Dec 18 12:38:33.481 INFO [stderr] 40 |     pub fn insert<S: Into<String>>(mut self, text: S, attributes: Attributes) -> Self {
Dec 18 12:38:33.481 INFO [stderr]    |                                    ----^^^^
Dec 18 12:38:33.481 INFO [stderr]    |                                    |
Dec 18 12:38:33.481 INFO [stderr]    |                                    help: remove this `mut`
Dec 18 12:38:33.481 INFO [stderr]    |
Dec 18 12:38:33.481 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 12:38:33.481 INFO [stderr] 
Dec 18 12:38:33.481 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.481 INFO [stderr]   --> src/lib.rs:44:19
Dec 18 12:38:33.481 INFO [stderr]    |
Dec 18 12:38:33.481 INFO [stderr] 44 |     pub fn delete(mut self, length: usize) -> Self {
Dec 18 12:38:33.481 INFO [stderr]    |                   ----^^^^
Dec 18 12:38:33.481 INFO [stderr]    |                   |
Dec 18 12:38:33.481 INFO [stderr]    |                   help: remove this `mut`
Dec 18 12:38:33.481 INFO [stderr] 
Dec 18 12:38:33.481 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.481 INFO [stderr]   --> src/lib.rs:48:19
Dec 18 12:38:33.481 INFO [stderr]    |
Dec 18 12:38:33.481 INFO [stderr] 48 |     pub fn retain(mut self, length: usize, attributes: Attributes) -> Self {
Dec 18 12:38:33.481 INFO [stderr]    |                   ----^^^^
Dec 18 12:38:33.481 INFO [stderr]    |                   |
Dec 18 12:38:33.481 INFO [stderr]    |                   help: remove this `mut`
Dec 18 12:38:33.481 INFO [stderr] 
Dec 18 12:38:33.481 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.481 INFO [stderr]   --> src/lib.rs:52:17
Dec 18 12:38:33.481 INFO [stderr]    |
Dec 18 12:38:33.481 INFO [stderr] 52 |     pub fn push(mut self, op: DeltaOperation) -> Self {
Dec 18 12:38:33.481 INFO [stderr]    |                 ----^^^^
Dec 18 12:38:33.481 INFO [stderr]    |                 |
Dec 18 12:38:33.481 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:38:33.481 INFO [stderr] 
Dec 18 12:38:33.481 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:38:33.481 INFO [stderr]   --> src/lib.rs:56:17
Dec 18 12:38:33.481 INFO [stderr]    |
Dec 18 12:38:33.481 INFO [stderr] 56 |     pub fn chop(mut self) {}
Dec 18 12:38:33.481 INFO [stderr]    |                 ----^^^^
Dec 18 12:38:33.481 INFO [stderr]    |                 |
Dec 18 12:38:33.481 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:38:33.481 INFO [stderr] 
Dec 18 12:38:33.576 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Dec 18 12:38:33.975 INFO running `"docker" "inspect" "5a9d462d41129dcee262adc468c22cbf328e74ce424b44bdb2fbb26f9ed727c7"`
Dec 18 12:38:34.220 INFO running `"docker" "rm" "-f" "5a9d462d41129dcee262adc468c22cbf328e74ce424b44bdb2fbb26f9ed727c7"`
Dec 18 12:38:34.468 INFO [stdout] 5a9d462d41129dcee262adc468c22cbf328e74ce424b44bdb2fbb26f9ed727c7