[INFO] fetching crate htmldom_read 0.5.0...
[INFO] checking htmldom_read-0.5.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate htmldom_read 0.5.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate htmldom_read 0.5.0
[INFO] finished tweaking crates.io crate htmldom_read 0.5.0
[INFO] tweaked toml for crates.io crate htmldom_read 0.5.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate htmldom_read 0.5.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding quick-xml v0.13.3 (available: v0.38.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 936f34bbf66a8c04cd5b194dd9b4c8ee1e89616e9d7a195ee524e8be901391c2
[INFO] running `Command { std: "docker" "start" "-a" "936f34bbf66a8c04cd5b194dd9b4c8ee1e89616e9d7a195ee524e8be901391c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "936f34bbf66a8c04cd5b194dd9b4c8ee1e89616e9d7a195ee524e8be901391c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "936f34bbf66a8c04cd5b194dd9b4c8ee1e89616e9d7a195ee524e8be901391c2", kill_on_drop: false }`
[INFO] [stdout] 936f34bbf66a8c04cd5b194dd9b4c8ee1e89616e9d7a195ee524e8be901391c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae19516c4adcdb28dc0a03425accce706b7bd8615f03848b8e23d931d9579de9
[INFO] running `Command { std: "docker" "start" "-a" "ae19516c4adcdb28dc0a03425accce706b7bd8615f03848b8e23d931d9579de9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking quick-xml v0.13.3
[INFO] [stderr]     Checking htmldom_read v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:737:17
[INFO] [stdout]     |
[INFO] [stdout] 737 |             let mut result;
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:426:29
[INFO] [stdout]     |
[INFO] [stdout] 426 |     fn collect_events(html: &str) -> LinkedList<Event> {
[INFO] [stdout]     |                             ^^^^                ----- the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 426 |     fn collect_events(html: &str) -> LinkedList<Event<'_>> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:850:27
[INFO] [stdout]     |
[INFO] [stdout] 850 |     pub fn children_fetch(&self) -> ChildrenFetch {
[INFO] [stdout]     |                           ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 850 |     pub fn children_fetch(&self) -> ChildrenFetch<'_> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:854:31
[INFO] [stdout]     |
[INFO] [stdout] 854 |     pub fn children_fetch_mut(&mut self) -> ChildrenFetchMut {
[INFO] [stdout]     |                               ^^^^^^^^^     ---------------- the same lifetime is hidden here
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 854 |     pub fn children_fetch_mut(&mut self) -> ChildrenFetchMut<'_> {
[INFO] [stdout]     |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1022:26
[INFO] [stdout]      |
[INFO] [stdout] 1022 |         fn sub(criteria: ChildrenFetch) -> LinkedList<&NodeAccess> {
[INFO] [stdout]      |                          ^^^^^^^^^^^^^                ----------- the same lifetime is elided here
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          the lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1022 |         fn sub(criteria: ChildrenFetch<'_>) -> LinkedList<&NodeAccess> {
[INFO] [stdout]      |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]     --> src/lib.rs:1096:30
[INFO] [stdout]      |
[INFO] [stdout] 1095 |             let a = i as *const NodeAccess as *mut NodeAccess;
[INFO] [stdout]      |                     ----------------------------------------- casting happened here
[INFO] [stdout] 1096 |             let a = unsafe { &mut *a };
[INFO] [stdout]      |                              ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]      = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `htmldom_read` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:737:17
[INFO] [stdout]     |
[INFO] [stdout] 737 |             let mut result;
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:426:29
[INFO] [stdout]     |
[INFO] [stdout] 426 |     fn collect_events(html: &str) -> LinkedList<Event> {
[INFO] [stdout]     |                             ^^^^                ----- the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 426 |     fn collect_events(html: &str) -> LinkedList<Event<'_>> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:850:27
[INFO] [stdout]     |
[INFO] [stdout] 850 |     pub fn children_fetch(&self) -> ChildrenFetch {
[INFO] [stdout]     |                           ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 850 |     pub fn children_fetch(&self) -> ChildrenFetch<'_> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:854:31
[INFO] [stdout]     |
[INFO] [stdout] 854 |     pub fn children_fetch_mut(&mut self) -> ChildrenFetchMut {
[INFO] [stdout]     |                               ^^^^^^^^^     ---------------- the same lifetime is hidden here
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 854 |     pub fn children_fetch_mut(&mut self) -> ChildrenFetchMut<'_> {
[INFO] [stdout]     |                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1022:26
[INFO] [stdout]      |
[INFO] [stdout] 1022 |         fn sub(criteria: ChildrenFetch) -> LinkedList<&NodeAccess> {
[INFO] [stdout]      |                          ^^^^^^^^^^^^^                ----------- the same lifetime is elided here
[INFO] [stdout]      |                          |
[INFO] [stdout]      |                          the lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1022 |         fn sub(criteria: ChildrenFetch<'_>) -> LinkedList<&NodeAccess> {
[INFO] [stdout]      |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]     --> src/lib.rs:1096:30
[INFO] [stdout]      |
[INFO] [stdout] 1095 |             let a = i as *const NodeAccess as *mut NodeAccess;
[INFO] [stdout]      |                     ----------------------------------------- casting happened here
[INFO] [stdout] 1096 |             let a = unsafe { &mut *a };
[INFO] [stdout]      |                              ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]      = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `htmldom_read` (lib) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ae19516c4adcdb28dc0a03425accce706b7bd8615f03848b8e23d931d9579de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae19516c4adcdb28dc0a03425accce706b7bd8615f03848b8e23d931d9579de9", kill_on_drop: false }`
[INFO] [stdout] ae19516c4adcdb28dc0a03425accce706b7bd8615f03848b8e23d931d9579de9