[INFO] fetching crate diesel_codegen_shared 0.10.0... [INFO] testing diesel_codegen_shared-0.10.0 against 1.49.0 for beta-1.50-1 [INFO] extracting crate diesel_codegen_shared 0.10.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate diesel_codegen_shared 0.10.0 on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate diesel_codegen_shared 0.10.0 [INFO] finished tweaking crates.io crate diesel_codegen_shared 0.10.0 [INFO] tweaked toml for crates.io crate diesel_codegen_shared 0.10.0 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a5e42cf9e83a7113440a5f9f4a275fd2229392debd288ea7e5bd6769e08a6a53 [INFO] running `Command { std: "docker" "start" "-a" "a5e42cf9e83a7113440a5f9f4a275fd2229392debd288ea7e5bd6769e08a6a53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a5e42cf9e83a7113440a5f9f4a275fd2229392debd288ea7e5bd6769e08a6a53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5e42cf9e83a7113440a5f9f4a275fd2229392debd288ea7e5bd6769e08a6a53", kill_on_drop: false }` [INFO] [stdout] a5e42cf9e83a7113440a5f9f4a275fd2229392debd288ea7e5bd6769e08a6a53 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0dcef995b0a7a679aff9a021e9fcfee7ec0bdf0b29a3a46d9134014d6d9a45cb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0dcef995b0a7a679aff9a021e9fcfee7ec0bdf0b29a3a46d9134014d6d9a45cb", kill_on_drop: false }` [INFO] [stderr] Compiling byteorder v0.3.13 [INFO] [stderr] Compiling diesel v0.10.1 [INFO] [stderr] Compiling diesel_codegen_shared v0.10.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/database_url.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | try!(load_dotenv_file()); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/migrations.rs:10:32 [INFO] [stdout] | [INFO] [stdout] 10 | let cargo_toml_directory = try!(env::var("CARGO_MANIFEST_DIR")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/migrations.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | try!(search_for_migrations_directory(&src_dir)) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/migrations.rs:8:28 [INFO] [stdout] | [INFO] [stdout] 8 | -> Result> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/migrations.rs:19:26 [INFO] [stdout] | [INFO] [stdout] 19 | ) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [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/database_url.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 15 | var_name, e.description()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.39s [INFO] running `Command { std: "docker" "inspect" "0dcef995b0a7a679aff9a021e9fcfee7ec0bdf0b29a3a46d9134014d6d9a45cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0dcef995b0a7a679aff9a021e9fcfee7ec0bdf0b29a3a46d9134014d6d9a45cb", kill_on_drop: false }` [INFO] [stdout] 0dcef995b0a7a679aff9a021e9fcfee7ec0bdf0b29a3a46d9134014d6d9a45cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 085d1a1e290011e5987d3a4bfea458a98d8eb56dfd82f0db41d7270b385ae528 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "085d1a1e290011e5987d3a4bfea458a98d8eb56dfd82f0db41d7270b385ae528", kill_on_drop: false }` [INFO] [stderr] Compiling diesel_codegen_shared v0.10.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/database_url.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | try!(load_dotenv_file()); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/migrations.rs:10:32 [INFO] [stdout] | [INFO] [stdout] 10 | let cargo_toml_directory = try!(env::var("CARGO_MANIFEST_DIR")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/migrations.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | try!(search_for_migrations_directory(&src_dir)) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/migrations.rs:8:28 [INFO] [stdout] | [INFO] [stdout] 8 | -> Result> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/migrations.rs:19:26 [INFO] [stdout] | [INFO] [stdout] 19 | ) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [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/database_url.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 15 | var_name, e.description()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/database_url.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | try!(load_dotenv_file()); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/migrations.rs:10:32 [INFO] [stdout] | [INFO] [stdout] 10 | let cargo_toml_directory = try!(env::var("CARGO_MANIFEST_DIR")); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/migrations.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | try!(search_for_migrations_directory(&src_dir)) [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/migrations.rs:8:28 [INFO] [stdout] | [INFO] [stdout] 8 | -> Result> [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/migrations.rs:19:26 [INFO] [stdout] | [INFO] [stdout] 19 | ) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [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/database_url.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 15 | var_name, e.description()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.72s [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "085d1a1e290011e5987d3a4bfea458a98d8eb56dfd82f0db41d7270b385ae528", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "085d1a1e290011e5987d3a4bfea458a98d8eb56dfd82f0db41d7270b385ae528", kill_on_drop: false }` [INFO] [stdout] 085d1a1e290011e5987d3a4bfea458a98d8eb56dfd82f0db41d7270b385ae528 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c6b6fad30e40c64c3bda91506368451a42759177ea8e68f96a02b9fb4ea92421 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c6b6fad30e40c64c3bda91506368451a42759177ea8e68f96a02b9fb4ea92421", kill_on_drop: false }` [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/database_url.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | try!(load_dotenv_file()); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/migrations.rs:10:32 [INFO] [stderr] | [INFO] [stderr] 10 | let cargo_toml_directory = try!(env::var("CARGO_MANIFEST_DIR")); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/migrations.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | try!(search_for_migrations_directory(&src_dir)) [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stdout] running 8 tests [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stdout] test migrations::tests::migrations_directory_resolved_relative_to_cargo_manifest_dir ... ok [INFO] [stderr] | [INFO] [stdout] test migrations::tests::migrations_directory_searches_src_migrations_if_present ... ok [INFO] [stderr] 1 | #[macro_use] [INFO] [stdout] test migrations::tests::migrations_directory_defaults_to_searching_migrations_path ... ok [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stdout] test migrations::tests::migrations_directory_canonicalizes_result ... ok [INFO] [stderr] | [INFO] [stdout] test migrations::tests::migrations_directory_allows_no_parent_dir_for_cargo_manifest_dir ... ok [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] test database_url::extract_database_url_returns_the_given_string ... ok [INFO] [stderr] [INFO] [stdout] test database_url::extract_database_url_returns_env_vars ... ok [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] test database_url::extract_database_url_errors_if_env_var_is_unset ... ok [INFO] [stderr] --> src/migrations.rs:8:28 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] 8 | -> Result> [INFO] [stdout] [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/migrations.rs:19:26 [INFO] [stderr] | [INFO] [stderr] 19 | ) -> Result> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/database_url.rs:15:33 [INFO] [stderr] | [INFO] [stderr] 15 | var_name, e.description()) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/database_url.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | try!(load_dotenv_file()); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/migrations.rs:10:32 [INFO] [stderr] | [INFO] [stderr] 10 | let cargo_toml_directory = try!(env::var("CARGO_MANIFEST_DIR")); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/migrations.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | try!(search_for_migrations_directory(&src_dir)) [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/migrations.rs:8:28 [INFO] [stderr] | [INFO] [stderr] 8 | -> Result> [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/migrations.rs:19:26 [INFO] [stderr] | [INFO] [stderr] 19 | ) -> Result> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/database_url.rs:15:33 [INFO] [stderr] | [INFO] [stderr] 15 | var_name, e.description()) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/diesel_codegen_shared-ae0a682e0b5ac169 [INFO] [stderr] Doc-tests diesel_codegen_shared [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c6b6fad30e40c64c3bda91506368451a42759177ea8e68f96a02b9fb4ea92421", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6b6fad30e40c64c3bda91506368451a42759177ea8e68f96a02b9fb4ea92421", kill_on_drop: false }` [INFO] [stdout] c6b6fad30e40c64c3bda91506368451a42759177ea8e68f96a02b9fb4ea92421