[INFO] fetching crate transaction-stm 0.2.0...
[INFO] checking transaction-stm-0.2.0 against 1.95.0 for pr-155915
[INFO] extracting crate transaction-stm 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate transaction-stm 0.2.0
[INFO] finished tweaking crates.io crate transaction-stm 0.2.0
[INFO] tweaked toml for crates.io crate transaction-stm 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate transaction-stm 0.2.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding stm v0.2.4 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stm v0.2.4
[INFO] [stderr]   Downloaded transaction v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a37aa2e7b07962779f4b50146f43944ad10f4fc55b3346ba20dd6a2b4065ff7b
[INFO] running `Command { std: "docker" "start" "-a" "a37aa2e7b07962779f4b50146f43944ad10f4fc55b3346ba20dd6a2b4065ff7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a37aa2e7b07962779f4b50146f43944ad10f4fc55b3346ba20dd6a2b4065ff7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37aa2e7b07962779f4b50146f43944ad10f4fc55b3346ba20dd6a2b4065ff7b", kill_on_drop: false }`
[INFO] [stdout] a37aa2e7b07962779f4b50146f43944ad10f4fc55b3346ba20dd6a2b4065ff7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 450ede553983005d36fe591c73a62b083d1edafaa24089608c3a08ea88b5f878
[INFO] running `Command { std: "docker" "start" "-a" "450ede553983005d36fe591c73a62b083d1edafaa24089608c3a08ea88b5f878", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking transaction v0.2.1
[INFO] [stderr]     Checking stm v0.2.4
[INFO] [stderr]     Checking transaction-stm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/impl_struct.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | type BoxTx<'a, T> = Box<Transaction<Ctx = stm::Transaction, Item = T, Err = stm::StmError> + 'a>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) 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] 13 | type BoxTx<'a, T> = Box<dyn Transaction<Ctx = stm::Transaction, Item = T, Err = stm::StmError> + 'a>;
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/impl_struct.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn inc_x(&self) -> BoxTx<i32> {
[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] 16 |     fn inc_x(&self) -> BoxTx<'_, i32> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/impl_struct.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn inc_y(&self) -> BoxTx<i32> {
[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] 23 |     fn inc_y(&self) -> BoxTx<'_, i32> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/impl_struct.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn inc_xy(&self) -> BoxTx<i32> {
[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] 31 |     fn inc_xy(&self) -> BoxTx<'_, i32> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/impl_struct.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn add(&self) -> BoxTx<i32> {
[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] 34 |     fn add(&self) -> BoxTx<'_, i32> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/boxed_vs_branch.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> benches/boxed_vs_branch.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | type BoxTx<'a, T> = Box<Transaction<Ctx = stm::Transaction, Item = T, Err = stm::StmError> + 'a>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) 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] 12 | type BoxTx<'a, T> = Box<dyn Transaction<Ctx = stm::Transaction, Item = T, Err = stm::StmError> + 'a>;
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `transaction-stm` (bench "boxed_vs_branch") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "450ede553983005d36fe591c73a62b083d1edafaa24089608c3a08ea88b5f878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450ede553983005d36fe591c73a62b083d1edafaa24089608c3a08ea88b5f878", kill_on_drop: false }`
[INFO] [stdout] 450ede553983005d36fe591c73a62b083d1edafaa24089608c3a08ea88b5f878
