[INFO] fetching crate rent_vec 0.1.0... [INFO] testing rent_vec-0.1.0 against 1.91.0 for beta-1.92-2 [INFO] extracting crate rent_vec 0.1.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate rent_vec 0.1.0 [INFO] finished tweaking crates.io crate rent_vec 0.1.0 [INFO] tweaked toml for crates.io crate rent_vec 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rent_vec 0.1.0 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fe5a1f92f0a64eeaf001c2f3a778e17dc93c4db3d74efb572df6a0ad43c50bac [INFO] running `Command { std: "docker" "start" "-a" "fe5a1f92f0a64eeaf001c2f3a778e17dc93c4db3d74efb572df6a0ad43c50bac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe5a1f92f0a64eeaf001c2f3a778e17dc93c4db3d74efb572df6a0ad43c50bac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe5a1f92f0a64eeaf001c2f3a778e17dc93c4db3d74efb572df6a0ad43c50bac", kill_on_drop: false }` [INFO] [stdout] fe5a1f92f0a64eeaf001c2f3a778e17dc93c4db3d74efb572df6a0ad43c50bac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d3ae710ab206637a6280ec4f3292616e7b47b0c00c298fbd9b63d72f5f96b3b4 [INFO] running `Command { std: "docker" "start" "-a" "d3ae710ab206637a6280ec4f3292616e7b47b0c00c298fbd9b63d72f5f96b3b4", kill_on_drop: false }` [INFO] [stderr] Compiling rent_vec v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:55:18 [INFO] [stdout] | [INFO] [stdout] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard { [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] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard { [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] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: assigning to `&T` is undefined behavior, consider using an `UnsafeCell` [INFO] [stdout] --> src/lib.rs:115:7 [INFO] [stdout] | [INFO] [stdout] 114 | let item = item as *const Entry as *mut Entry; [INFO] [stdout] | ---------------------------------------- casting happened here [INFO] [stdout] 115 | *item = Entry::Empty [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` [INFO] [stdout] = note: `#[warn(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "d3ae710ab206637a6280ec4f3292616e7b47b0c00c298fbd9b63d72f5f96b3b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3ae710ab206637a6280ec4f3292616e7b47b0c00c298fbd9b63d72f5f96b3b4", kill_on_drop: false }` [INFO] [stdout] d3ae710ab206637a6280ec4f3292616e7b47b0c00c298fbd9b63d72f5f96b3b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2705e7c6f0da04cc3eac99023f3fbeae070f5b11747ee041bec89b784876e59f [INFO] running `Command { std: "docker" "start" "-a" "2705e7c6f0da04cc3eac99023f3fbeae070f5b11747ee041bec89b784876e59f", kill_on_drop: false }` [INFO] [stderr] Compiling rent_vec v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:55:18 [INFO] [stdout] | [INFO] [stdout] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard { [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] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard { [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] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: assigning to `&T` is undefined behavior, consider using an `UnsafeCell` [INFO] [stdout] --> src/lib.rs:115:7 [INFO] [stdout] | [INFO] [stdout] 114 | let item = item as *const Entry as *mut Entry; [INFO] [stdout] | ---------------------------------------- casting happened here [INFO] [stdout] 115 | *item = Entry::Empty [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` [INFO] [stdout] = note: `#[warn(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:55:18 [INFO] [stdout] | [INFO] [stdout] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard { [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] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard { [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] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: assigning to `&T` is undefined behavior, consider using an `UnsafeCell` [INFO] [stdout] --> src/lib.rs:115:7 [INFO] [stdout] | [INFO] [stdout] 114 | let item = item as *const Entry as *mut Entry; [INFO] [stdout] | ---------------------------------------- casting happened here [INFO] [stdout] 115 | *item = Entry::Empty [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` [INFO] [stdout] = note: `#[warn(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "2705e7c6f0da04cc3eac99023f3fbeae070f5b11747ee041bec89b784876e59f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2705e7c6f0da04cc3eac99023f3fbeae070f5b11747ee041bec89b784876e59f", kill_on_drop: false }` [INFO] [stdout] 2705e7c6f0da04cc3eac99023f3fbeae070f5b11747ee041bec89b784876e59f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 322b1d28715a1122e26b5815ca3f0d49d14f03792173fd8eaf7f994fcf428210 [INFO] running `Command { std: "docker" "start" "-a" "322b1d28715a1122e26b5815ca3f0d49d14f03792173fd8eaf7f994fcf428210", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:55:18 [INFO] [stderr] | [INFO] [stderr] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard { [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] 55 | fn write(rwl: &RwLock) -> RwLockWriteGuard<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:62:17 [INFO] [stderr] | [INFO] [stderr] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard { [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] 62 | fn read(rwl: &RwLock) -> RwLockReadGuard<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: assigning to `&T` is undefined behavior, consider using an `UnsafeCell` [INFO] [stderr] --> src/lib.rs:115:7 [INFO] [stderr] | [INFO] [stderr] 114 | let item = item as *const Entry as *mut Entry; [INFO] [stderr] | ---------------------------------------- casting happened here [INFO] [stderr] 115 | *item = Entry::Empty [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: for more information, visit [INFO] [stderr] = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` [INFO] [stderr] = note: `#[warn(invalid_reference_casting)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rent_vec` (lib) generated 3 warnings (run `cargo fix --lib -p rent_vec` to apply 2 suggestions) [INFO] [stderr] warning: `rent_vec` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rent_vec-4fdf020d1e9f8c78) [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] [stderr] Doc-tests rent_vec [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 18) ... ok [INFO] [stdout] test src/lib.rs - (line 28) ... ok [INFO] [stdout] test src/lib.rs - (line 6) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "322b1d28715a1122e26b5815ca3f0d49d14f03792173fd8eaf7f994fcf428210", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "322b1d28715a1122e26b5815ca3f0d49d14f03792173fd8eaf7f994fcf428210", kill_on_drop: false }` [INFO] [stdout] 322b1d28715a1122e26b5815ca3f0d49d14f03792173fd8eaf7f994fcf428210