[INFO] fetching crate flow_arena 0.4.4... [INFO] testing flow_arena-0.4.4 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate flow_arena 0.4.4 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate flow_arena 0.4.4 [INFO] finished tweaking crates.io crate flow_arena 0.4.4 [INFO] tweaked toml for crates.io crate flow_arena 0.4.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate flow_arena 0.4.4 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 10 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 23b4cee272774c2dc0222ecc2d4e5813cafb6d7f0aafaa9c3f359b586e113c29 [INFO] running `Command { std: "docker" "start" "-a" "23b4cee272774c2dc0222ecc2d4e5813cafb6d7f0aafaa9c3f359b586e113c29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "23b4cee272774c2dc0222ecc2d4e5813cafb6d7f0aafaa9c3f359b586e113c29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23b4cee272774c2dc0222ecc2d4e5813cafb6d7f0aafaa9c3f359b586e113c29", kill_on_drop: false }` [INFO] [stdout] 23b4cee272774c2dc0222ecc2d4e5813cafb6d7f0aafaa9c3f359b586e113c29 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6545723c0c4b8fdaf9fd4c25a049f5c98934af202b442b7ea0fb88c6526e3641 [INFO] running `Command { std: "docker" "start" "-a" "6545723c0c4b8fdaf9fd4c25a049f5c98934af202b442b7ea0fb88c6526e3641", kill_on_drop: false }` [INFO] [stderr] Compiling flow_arena v0.4.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/arena.rs:169:36 [INFO] [stdout] | [INFO] [stdout] 169 | .find(|x| x.clone() == id) [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `Id` does not implement `Clone`, so calling `clone` on `&Id` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/arena.rs:421:21 [INFO] [stdout] | [INFO] [stdout] 421 | pub fn entities(&self) -> Entities { [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] 421 | pub fn entities(&self) -> Entities<'_, Id, Entity> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/arena.rs:427:25 [INFO] [stdout] | [INFO] [stdout] 427 | pub fn entities_mut(&mut self) -> EntitiesMut { [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] 427 | pub fn entities_mut(&mut self) -> EntitiesMut<'_, Id, Entity> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `Command { std: "docker" "inspect" "6545723c0c4b8fdaf9fd4c25a049f5c98934af202b442b7ea0fb88c6526e3641", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6545723c0c4b8fdaf9fd4c25a049f5c98934af202b442b7ea0fb88c6526e3641", kill_on_drop: false }` [INFO] [stdout] 6545723c0c4b8fdaf9fd4c25a049f5c98934af202b442b7ea0fb88c6526e3641 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eb824d465c590e80b717428ad8664244795653a915950ac4c3a8dcf9205a40cd [INFO] running `Command { std: "docker" "start" "-a" "eb824d465c590e80b717428ad8664244795653a915950ac4c3a8dcf9205a40cd", kill_on_drop: false }` [INFO] [stderr] Compiling serde_json v1.0.143 [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/arena.rs:169:36 [INFO] [stdout] | [INFO] [stdout] 169 | .find(|x| x.clone() == id) [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `Id` does not implement `Clone`, so calling `clone` on `&Id` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/arena.rs:421:21 [INFO] [stdout] | [INFO] [stdout] 421 | pub fn entities(&self) -> Entities { [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] 421 | pub fn entities(&self) -> Entities<'_, Id, Entity> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/arena.rs:427:25 [INFO] [stdout] | [INFO] [stdout] 427 | pub fn entities_mut(&mut self) -> EntitiesMut { [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] 427 | pub fn entities_mut(&mut self) -> EntitiesMut<'_, Id, Entity> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling flow_arena v0.4.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/arena.rs:169:36 [INFO] [stdout] | [INFO] [stdout] 169 | .find(|x| x.clone() == id) [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `Id` does not implement `Clone`, so calling `clone` on `&Id` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/arena.rs:421:21 [INFO] [stdout] | [INFO] [stdout] 421 | pub fn entities(&self) -> Entities { [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] 421 | pub fn entities(&self) -> Entities<'_, Id, Entity> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/arena.rs:427:25 [INFO] [stdout] | [INFO] [stdout] 427 | pub fn entities_mut(&mut self) -> EntitiesMut { [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] 427 | pub fn entities_mut(&mut self) -> EntitiesMut<'_, Id, Entity> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.64s [INFO] running `Command { std: "docker" "inspect" "eb824d465c590e80b717428ad8664244795653a915950ac4c3a8dcf9205a40cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb824d465c590e80b717428ad8664244795653a915950ac4c3a8dcf9205a40cd", kill_on_drop: false }` [INFO] [stdout] eb824d465c590e80b717428ad8664244795653a915950ac4c3a8dcf9205a40cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c2dd77ed9f484d84502afc6139601aaf3339553394871b059c0a60a192d517b4 [INFO] running `Command { std: "docker" "start" "-a" "c2dd77ed9f484d84502afc6139601aaf3339553394871b059c0a60a192d517b4", kill_on_drop: false }` [INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] [INFO] [stderr] --> src/arena.rs:169:36 [INFO] [stdout] running 5 tests [INFO] [stderr] | [INFO] [stdout] test arena::tests::flow_dock ... ok [INFO] [stderr] 169 | .find(|x| x.clone() == id) [INFO] [stderr] | ^^^^^^^^ help: remove this redundant call [INFO] [stderr] | [INFO] [stderr] = note: the type `Id` does not implement `Clone`, so calling `clone` on `&Id` copies the reference, which does not do anything and can be removed [INFO] [stderr] = note: `#[warn(noop_method_call)]` on by default [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/arena.rs:421:21 [INFO] [stderr] | [INFO] [stderr] 421 | pub fn entities(&self) -> Entities { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 421 | pub fn entities(&self) -> Entities<'_, Id, Entity> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/arena.rs:427:25 [INFO] [stderr] | [INFO] [stderr] 427 | pub fn entities_mut(&mut self) -> EntitiesMut { [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 427 | pub fn entities_mut(&mut self) -> EntitiesMut<'_, Id, Entity> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `flow_arena` (lib) generated 3 warnings (run `cargo fix --lib -p flow_arena` to apply 3 suggestions) [INFO] [stderr] warning: `flow_arena` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flow_arena-fcebc84c2f83a6f2) [INFO] [stdout] test arena::tests::main_test ... ok [INFO] [stdout] test arena::tests::iter ... ok [INFO] [stdout] test arena::tests::offspring_ownership ... ok [INFO] [stdout] test arena::tests::serde ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] Doc-tests flow_arena [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c2dd77ed9f484d84502afc6139601aaf3339553394871b059c0a60a192d517b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2dd77ed9f484d84502afc6139601aaf3339553394871b059c0a60a192d517b4", kill_on_drop: false }` [INFO] [stdout] c2dd77ed9f484d84502afc6139601aaf3339553394871b059c0a60a192d517b4