[INFO] crate xml_oxide 0.0.6 is already in cache
[INFO] extracting crate xml_oxide 0.0.6 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/xml_oxide/0.0.6
[INFO] extracting crate xml_oxide 0.0.6 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/xml_oxide/0.0.6
[INFO] validating manifest of xml_oxide-0.0.6 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xml_oxide-0.0.6 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xml_oxide-0.0.6
[INFO] finished frobbing xml_oxide-0.0.6
[INFO] frobbed toml for xml_oxide-0.0.6 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/xml_oxide/0.0.6/Cargo.toml
[INFO] started frobbing xml_oxide-0.0.6
[INFO] finished frobbing xml_oxide-0.0.6
[INFO] frobbed toml for xml_oxide-0.0.6 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/xml_oxide/0.0.6/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking xml_oxide-0.0.6 against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/xml_oxide/0.0.6:/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 35a288474694bd301694fe1561492b8a1606c8e4295c19a21f990d9f86cf459b
[INFO] running `"docker" "start" "-a" "35a288474694bd301694fe1561492b8a1606c8e4295c19a21f990d9f86cf459b"`
[INFO] [stderr]     Checking xml_sax v0.0.3
[INFO] [stderr]     Checking xml_oxide v0.0.6 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/char_iter.rs:94:43
[INFO] [stderr]    |
[INFO] [stderr] 94 |             CharsError::Other(ref e) => e.cause(),
[INFO] [stderr]    |                                           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/char_iter.rs:94:43
[INFO] [stderr]    |
[INFO] [stderr] 94 |             CharsError::Other(ref e) => e.cause(),
[INFO] [stderr]    |                                           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> tests/books_test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> tests/books_test.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/books_test.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         uri: &str,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/books_test.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         local_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/books_test.rs:68:31
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/books_test.rs:68:42
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `qualified_name`
[INFO] [stderr]   --> tests/books_test.rs:68:60
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_qualified_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `characters`
[INFO] [stderr]   --> tests/books_test.rs:72:30
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn characters(&mut self, characters: &str) {
[INFO] [stderr]    |                              ^^^^^^^^^^ help: consider prefixing with an underscore: `_characters`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> tests/books_test.rs:78:26
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn offset(&mut self, offset: usize) {}
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/books_test.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let mut f: File = match File::open("tests/xml_files/books.xml") {
[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]   --> tests/books_test.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let mut my_sax_handler = MySaxHandler {
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> tests/test_parser_3.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> tests/test_parser_3.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> tests/test_new_parser.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> tests/test_new_parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> tests/test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> tests/test.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]   --> tests/test.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::{Duration, Instant};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> tests/test_namespace.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> tests/test_namespace.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test_new_parser.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         uri: &str,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test_new_parser.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         local_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `qualified_name`
[INFO] [stderr]   --> tests/test_new_parser.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         qualified_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_qualified_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test_new_parser.rs:39:31
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test_new_parser.rs:39:42
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `qualified_name`
[INFO] [stderr]   --> tests/test_new_parser.rs:39:60
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_qualified_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `characters`
[INFO] [stderr]   --> tests/test_new_parser.rs:43:30
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn characters(&mut self, characters: &str) {
[INFO] [stderr]    |                              ^^^^^^^^^^ help: consider prefixing with an underscore: `_characters`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> tests/test_new_parser.rs:49:26
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn offset(&mut self, offset: usize) {}
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test_new_parser.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut f: File = match File::open("tests/xml_files/mini.4.xml") {
[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]   --> tests/test_new_parser.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let mut my_sax_handler = MySaxHandler {
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test_parser_3.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         uri: &str,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test_parser_3.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         local_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `qualified_name`
[INFO] [stderr]   --> tests/test_parser_3.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         qualified_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_qualified_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test_parser_3.rs:39:31
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test_parser_3.rs:39:42
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `qualified_name`
[INFO] [stderr]   --> tests/test_parser_3.rs:39:60
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_qualified_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `characters`
[INFO] [stderr]   --> tests/test_parser_3.rs:43:30
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn characters(&mut self, characters: &str) {
[INFO] [stderr]    |                              ^^^^^^^^^^ help: consider prefixing with an underscore: `_characters`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> tests/test_parser_3.rs:49:26
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn offset(&mut self, offset: usize) {}
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test_parser_3.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut f: File = match File::open("tests/xml_files/books.xml") {
[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]   --> tests/test_parser_3.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let mut my_sax_handler = MySaxHandler {
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test_namespace.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         local_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test_namespace.rs:56:31
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test_namespace.rs:56:42
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `qualified_name`
[INFO] [stderr]   --> tests/test_namespace.rs:56:60
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_qualified_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `characters`
[INFO] [stderr]   --> tests/test_namespace.rs:61:30
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn characters(&mut self, characters: &str) {
[INFO] [stderr]    |                              ^^^^^^^^^^ help: consider prefixing with an underscore: `_characters`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> tests/test_namespace.rs:67:26
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn offset(&mut self, offset: usize) {}
[INFO] [stderr]    |                          ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test_namespace.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut f: File = match File::open("tests/xml_files/namespaces.xml") {
[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]   --> tests/test_namespace.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut my_sax_handler = MySaxHandler {
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         uri: &str,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         local_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `attributes`
[INFO] [stderr]   --> tests/test.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         attributes: &xml_sax::SAXAttributes,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_attributes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test.rs:37:31
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                               ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test.rs:37:42
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]   --> tests/test.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         uri: &str,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]   --> tests/test.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         local_name: &str,
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `uri`
[INFO] [stderr]    --> tests/test.rs:100:31
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]     |                               ^^^ help: consider prefixing with an underscore: `_uri`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_name`
[INFO] [stderr]    --> tests/test.rs:100:42
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn end_element(&mut self, uri: &str, local_name: &str, qualified_name: &str) {
[INFO] [stderr]     |                                          ^^^^^^^^^^ help: consider prefixing with an underscore: `_local_name`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let mut s = String::from("<rootEl><value>5</value></rootEl>");
[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]    --> tests/test.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let mut my_sax_handler = MyCollectorSaxHandler {
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:167:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |     let mut s = String::from("<rootEl><value>1&lt;2&#60;3&#x0003C;4</value></rootEl>");
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |     let mut my_sax_handler = MyCollectorSaxHandler {
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mut s = String::from(
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |     let mut my_sax_handler = MyCollectorSaxHandler {
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 |     let mut s = String::from("<rootEl>comments<!--are ignored--><!---->.</rootEl>");
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:228:9
[INFO] [stderr]     |
[INFO] [stderr] 228 |     let mut my_sax_handler = MyCollectorSaxHandler {
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:256:9
[INFO] [stderr]     |
[INFO] [stderr] 256 |     let mut s = String::from(
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let mut my_sax_handler = MyCollectorSaxHandler {
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MySaxHandler`
[INFO] [stderr]   --> tests/test.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct MySaxHandler {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_66_EntityRef` should have a snake case name
[INFO] [stderr]    --> tests/test.rs:158:4
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn test_66_EntityRef() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_66_entity_ref`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_18_CDATA` should have a snake case name
[INFO] [stderr]    --> tests/test.rs:192:4
[INFO] [stderr]     |
[INFO] [stderr] 192 | fn test_18_CDATA() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_18_cdata`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_15_Comment` should have a snake case name
[INFO] [stderr]    --> tests/test.rs:225:4
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn test_15_Comment() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_15_comment`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_15_Comment_not_well_formed` should have a snake case name
[INFO] [stderr]    --> tests/test.rs:255:4
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn test_15_Comment_not_well_formed() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_15_comment_not_well_formed`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `"docker" "inspect" "35a288474694bd301694fe1561492b8a1606c8e4295c19a21f990d9f86cf459b"`
[INFO] running `"docker" "rm" "-f" "35a288474694bd301694fe1561492b8a1606c8e4295c19a21f990d9f86cf459b"`
[INFO] [stdout] 35a288474694bd301694fe1561492b8a1606c8e4295c19a21f990d9f86cf459b