[INFO] fetching crate hfs 1.0.0...
[INFO] checking hfs-1.0.0 against master#4b9792692fbb675174d4d2082e7c37b2bc930e71 for pr-153692-1
[INFO] extracting crate hfs 1.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate hfs 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hfs 1.0.0
[INFO] tweaked toml for crates.io crate hfs 1.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hfs 1.0.0 on toolchain 4b9792692fbb675174d4d2082e7c37b2bc930e71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hfs 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcd v2.3.0
[INFO] [stderr]   Downloaded concat-idents v1.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7eec81d7731fddbf394780be3f0370f87f8d49385e95c7d7588804746e1780fd
[INFO] running `Command { std: "docker" "start" "-a" "7eec81d7731fddbf394780be3f0370f87f8d49385e95c7d7588804746e1780fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eec81d7731fddbf394780be3f0370f87f8d49385e95c7d7588804746e1780fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eec81d7731fddbf394780be3f0370f87f8d49385e95c7d7588804746e1780fd", kill_on_drop: false }`
[INFO] [stdout] 7eec81d7731fddbf394780be3f0370f87f8d49385e95c7d7588804746e1780fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1fb68b4bded9ae0d7fc2e1a70bddd98e2b7091b3409aa1c8f4d2406828d060c
[INFO] running `Command { std: "docker" "start" "-a" "c1fb68b4bded9ae0d7fc2e1a70bddd98e2b7091b3409aa1c8f4d2406828d060c", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling concat-idents v1.1.5
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking hfs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn iter(&self) -> slice::Iter<Self> {
[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] 140 |     fn iter(&self) -> slice::Iter<'_, Self> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ the same lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 502 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 503 |         level: usize,
[INFO] [stdout] 504 |         slice: &'a [U],
[INFO] [stdout]     |                 -- the lifetime is named here
[INFO] [stdout] 505 |     ) -> traits!(&'a [U]) {
[INFO] [stdout]     |          ----------------
[INFO] [stdout]     |          |        |
[INFO] [stdout]     |          |        the same lifetime is named here
[INFO] [stdout]     |          in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 220 -     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout] 220 +     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + 'a };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ the same lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 519 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 520 |         level: usize,
[INFO] [stdout] 521 |         slice: &'a mut [U],
[INFO] [stdout]     |                 -- the lifetime is named here
[INFO] [stdout] 522 |     ) -> traits!(&'a mut [U]) {
[INFO] [stdout]     |          --------------------
[INFO] [stdout]     |          |        |
[INFO] [stdout]     |          |        the same lifetime is named here
[INFO] [stdout]     |          in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 220 -     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout] 220 +     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + 'a };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mset.rs:580:21
[INFO] [stdout]     |
[INFO] [stdout] 580 |     pub fn iter_mut(&mut self) -> slice::IterMut<Self> {
[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] 580 |     pub fn iter_mut(&mut self) -> slice::IterMut<'_, Self> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:570:28
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub unsafe fn iter_mut(&mut self) -> slice::IterMut<Self> {
[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] 570 |     pub unsafe fn iter_mut(&mut self) -> slice::IterMut<'_, Self> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn iter(&self) -> slice::Iter<Self> {
[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] 140 |     fn iter(&self) -> slice::Iter<'_, Self> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ the same lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 502 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 503 |         level: usize,
[INFO] [stdout] 504 |         slice: &'a [U],
[INFO] [stdout]     |                 -- the lifetime is named here
[INFO] [stdout] 505 |     ) -> traits!(&'a [U]) {
[INFO] [stdout]     |          ----------------
[INFO] [stdout]     |          |        |
[INFO] [stdout]     |          |        the same lifetime is named here
[INFO] [stdout]     |          in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 220 -     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout] 220 +     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + 'a };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/levels.rs:220:77
[INFO] [stdout]     |
[INFO] [stdout] 220 |     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout]     |                                                                             ^^ the same lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 519 |         &'a self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 520 |         level: usize,
[INFO] [stdout] 521 |         slice: &'a mut [U],
[INFO] [stdout]     |                 -- the lifetime is named here
[INFO] [stdout] 522 |     ) -> traits!(&'a mut [U]) {
[INFO] [stdout]     |          --------------------
[INFO] [stdout]     |          |        |
[INFO] [stdout]     |          |        the same lifetime is named here
[INFO] [stdout]     |          in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: this warning originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 220 -     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + '_ };
[INFO] [stdout] 220 +     ($t: ty) => { impl DoubleEndedIterator<Item = $t> + ExactSizeIterator + 'a };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mset.rs:580:21
[INFO] [stdout]     |
[INFO] [stdout] 580 |     pub fn iter_mut(&mut self) -> slice::IterMut<Self> {
[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] 580 |     pub fn iter_mut(&mut self) -> slice::IterMut<'_, Self> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:570:28
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub unsafe fn iter_mut(&mut self) -> slice::IterMut<Self> {
[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] 570 |     pub unsafe fn iter_mut(&mut self) -> slice::IterMut<'_, Self> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.87s
[INFO] running `Command { std: "docker" "inspect" "c1fb68b4bded9ae0d7fc2e1a70bddd98e2b7091b3409aa1c8f4d2406828d060c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1fb68b4bded9ae0d7fc2e1a70bddd98e2b7091b3409aa1c8f4d2406828d060c", kill_on_drop: false }`
[INFO] [stdout] c1fb68b4bded9ae0d7fc2e1a70bddd98e2b7091b3409aa1c8f4d2406828d060c