[INFO] fetching crate skew-heap 0.2.0...
[INFO] fixing skew-heap-0.2.0 against try#5fed607fb5806ae20927e7e9193e3793c411ac20+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817
[INFO] extracting crate skew-heap 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate skew-heap 0.2.0
[INFO] finished tweaking crates.io crate skew-heap 0.2.0
[INFO] tweaked toml for crates.io crate skew-heap 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate skew-heap 0.2.0 on toolchain 5fed607fb5806ae20927e7e9193e3793c411ac20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fed607fb5806ae20927e7e9193e3793c411ac20" "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" "+5fed607fb5806ae20927e7e9193e3793c411ac20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding quickcheck v0.2.27 (available: v1.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fed607fb5806ae20927e7e9193e3793c411ac20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `skew-heap` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432
[INFO] running `Command { std: "docker" "start" "4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432" "/opt/rustwide/cargo-home/bin/cargo" "+5fed607fb5806ae20927e7e9193e3793c411ac20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432" "/opt/rustwide/cargo-home/bin/cargo" "+5fed607fb5806ae20927e7e9193e3793c411ac20" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2015 edition to 2018
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `skew-heap` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking log v0.4.32
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking skew-heap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/lib.rs from 2015 edition to 2018
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr]    Migrating tests/quickcheck.rs from 2015 edition to 2018
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.23s
[INFO] [stderr] crater-edition-check: skew-heap v0.2.0 (/opt/rustwide/workdir) updating edition from 2015 to 2018
[INFO] [stderr]     Checking skew-heap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn iter(&self) -> Iter<T> {
[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] 67 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/quickcheck.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn shrink(&self) -> Box<dyn Iterator<Item = Self>> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/quickcheck.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Len(usize, usize),
[INFO] [stdout]    |     --- ^^^^^  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Disagreement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 65 -     Len(usize, usize),
[INFO] [stdout] 65 +     Len((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.56s
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2015 edition to 2018
[INFO] [stderr]     Checking skew-heap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/quickcheck.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed tests/quickcheck.rs (1 fix)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s
[INFO] [stderr] crater-edition-check: skew-heap v0.2.0 (/opt/rustwide/workdir) updating edition from 2018 to 2021
[INFO] [stderr]     Checking skew-heap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn iter(&self) -> Iter<T> {
[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] 67 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/quickcheck.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Len(usize, usize),
[INFO] [stdout]    |     --- ^^^^^  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Disagreement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 65 -     Len(usize, usize),
[INFO] [stdout] 65 +     Len((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.26s
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2015 edition to 2018
[INFO] [stderr]     Checking skew-heap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> src/lib.rs:345:23
[INFO] [stdout]     |
[INFO] [stdout] 343 |         self.node.take().map(|mut node| {
[INFO] [stdout]     |                               --------
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               `node` calls a custom destructor
[INFO] [stdout]     |                               `node` will be dropped later as of Edition 2024
[INFO] [stdout] 344 |             loop {
[INFO] [stdout] 345 |                 match node.l.take() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]     |                       up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 350 |                     Some(mut l) => {
[INFO] [stdout]     |                          -----
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          `l` calls a custom destructor
[INFO] [stdout]     |                          `l` will be dropped later as of Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 356 |             }
[INFO] [stdout]     |             - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]     = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating tests/quickcheck.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed tests/quickcheck.rs (6 fixes)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] [stderr] crater-edition-check: skew-heap v0.2.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr]     Checking skew-heap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn iter(&self) -> Iter<T> {
[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] 67 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/quickcheck.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Len(usize, usize),
[INFO] [stdout]    |     --- ^^^^^  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Disagreement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 65 -     Len(usize, usize),
[INFO] [stdout] 65 +     Len((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.26s
[INFO] [stderr] crater-edition-check all packages now at latest edition
[INFO] [stderr] crater-edition-check: all finished
[INFO] running `Command { std: "docker" "inspect" "4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432", kill_on_drop: false }`
[INFO] [stdout] 4fec8d29eaeeabd4914b8597cf2f83f7b0035f796a151a10b4ed7737c665f432
