[INFO] fetching crate r2d2-memcache 0.6.0... [INFO] checking r2d2-memcache-0.6.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] extracting crate r2d2-memcache 0.6.0 into /workspace/builds/worker-13/source [INFO] validating manifest of crates.io crate r2d2-memcache 0.6.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate r2d2-memcache 0.6.0 [INFO] finished tweaking crates.io crate r2d2-memcache 0.6.0 [INFO] tweaked toml for crates.io crate r2d2-memcache 0.6.0 written to /workspace/builds/worker-13/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 82cfc1d4e5c61849c5a605b6992f6d5e168b4acda668ec9c95ee5f7cad7b3b4c [INFO] running `Command { std: "docker" "start" "-a" "82cfc1d4e5c61849c5a605b6992f6d5e168b4acda668ec9c95ee5f7cad7b3b4c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "82cfc1d4e5c61849c5a605b6992f6d5e168b4acda668ec9c95ee5f7cad7b3b4c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82cfc1d4e5c61849c5a605b6992f6d5e168b4acda668ec9c95ee5f7cad7b3b4c", kill_on_drop: false }` [INFO] [stdout] 82cfc1d4e5c61849c5a605b6992f6d5e168b4acda668ec9c95ee5f7cad7b3b4c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76d88c38cf50e5ba33f7e49fb19a9a9655c7ffe306970f7315475addc25f48d4 [INFO] running `Command { std: "docker" "start" "-a" "76d88c38cf50e5ba33f7e49fb19a9a9655c7ffe306970f7315475addc25f48d4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling openssl-sys v0.9.65 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking log v0.4.14 [INFO] [stderr] Checking tinyvec v1.3.1 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking unicode-bidi v0.3.5 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Compiling openssl v0.10.35 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking scheduled-thread-pool v0.2.5 [INFO] [stderr] Checking r2d2 v0.8.9 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking url v2.2.2 [INFO] [stderr] Compiling enum_dispatch v0.3.7 [INFO] [stderr] Checking memcache v0.15.0 [INFO] [stderr] Checking r2d2-memcache v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:30:32 [INFO] [stdout] | [INFO] [stdout] 30 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:30:32 [INFO] [stdout] | [INFO] [stdout] 30 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:16:20 [INFO] [stdout] | [INFO] [stdout] 16 | match self.cause() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:17:55 [INFO] [stdout] | [INFO] [stdout] 17 | Some(cause) => write!(fmt, "{}: {}", self.description(), cause), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:18:44 [INFO] [stdout] | [INFO] [stdout] 18 | None => write!(fmt, "{}", self.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:26:42 [INFO] [stdout] | [INFO] [stdout] 26 | Error::Other(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:32:42 [INFO] [stdout] | [INFO] [stdout] 32 | Error::Other(ref err) => err.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:16:20 [INFO] [stdout] | [INFO] [stdout] 16 | match self.cause() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:17:55 [INFO] [stdout] | [INFO] [stdout] 17 | Some(cause) => write!(fmt, "{}: {}", self.description(), cause), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:18:44 [INFO] [stdout] | [INFO] [stdout] 18 | None => write!(fmt, "{}", self.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:26:42 [INFO] [stdout] | [INFO] [stdout] 26 | Error::Other(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:32:42 [INFO] [stdout] | [INFO] [stdout] 32 | Error::Other(ref err) => err.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_numerous_connection.rs:19:17 [INFO] [stdout] | [INFO] [stdout] 19 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_numerous_connection.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_connection.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let mut conn = pool.get().unwrap(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.09s [INFO] running `Command { std: "docker" "inspect" "76d88c38cf50e5ba33f7e49fb19a9a9655c7ffe306970f7315475addc25f48d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76d88c38cf50e5ba33f7e49fb19a9a9655c7ffe306970f7315475addc25f48d4", kill_on_drop: false }` [INFO] [stdout] 76d88c38cf50e5ba33f7e49fb19a9a9655c7ffe306970f7315475addc25f48d4