[INFO] fetching crate mycelium_core 0.1.1...
[INFO] building mycelium_core-0.1.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate mycelium_core 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mycelium_core 0.1.1
[INFO] finished tweaking crates.io crate mycelium_core 0.1.1
[INFO] tweaked toml for crates.io crate mycelium_core 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mycelium_core 0.1.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v2.0.1)
[INFO] [stderr]       Adding fern v0.5.9 (available: v0.7.1)
[INFO] [stderr]       Adding remove_dir_all v0.5.3 (available: v1.0.0)
[INFO] [stderr]       Adding ron v0.4.2 (available: v0.11.0)
[INFO] [stderr]       Adding uuid v0.7.4 (available: v1.18.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mycelium_command v0.1.1
[INFO] [stderr]   Downloaded ron v0.4.2
[INFO] [stderr]   Downloaded fern v0.5.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8807d54b9b87f57e6c13e29c408e2f4afdda3300786d1703c3a8096cf2f849e5
[INFO] running `Command { std: "docker" "start" "-a" "8807d54b9b87f57e6c13e29c408e2f4afdda3300786d1703c3a8096cf2f849e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8807d54b9b87f57e6c13e29c408e2f4afdda3300786d1703c3a8096cf2f849e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8807d54b9b87f57e6c13e29c408e2f4afdda3300786d1703c3a8096cf2f849e5", kill_on_drop: false }`
[INFO] [stdout] 8807d54b9b87f57e6c13e29c408e2f4afdda3300786d1703c3a8096cf2f849e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d30731181cfae6a70aeb4690431f554af1ca91be8dc501a6da49934282f1ccc1
[INFO] running `Command { std: "docker" "start" "-a" "d30731181cfae6a70aeb4690431f554af1ca91be8dc501a6da49934282f1ccc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ron v0.4.2
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling fern v0.5.9
[INFO] [stderr]    Compiling mycelium_command v0.1.1
[INFO] [stderr]    Compiling mycelium_core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/persistence/mod.rs:88:15
[INFO] [stdout]    |
[INFO] [stdout] 88 |             e.description()
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:454:52
[INFO] [stdout]     |
[INFO] [stdout] 454 |                 error!("Error loading tags: {}", e.description());
[INFO] [stdout]     |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:641:65
[INFO] [stdout]     |
[INFO] [stdout] 641 |         Err(e) => panic!("File permission check failure: {}", e.description()),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IndexType` is never used
[INFO] [stdout]  --> src/ephemeral/page.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub(crate) enum IndexType {
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IndexPage` is never constructed
[INFO] [stdout]   --> src/ephemeral/page.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct IndexPage {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dirty` is never read
[INFO] [stdout]   --> src/ephemeral/page.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Page {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 38 |     #[serde(skip)]
[INFO] [stdout] 39 |     dirty: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Err(e) => panic!(format!("Poison RwLock core::p_append(): {:?}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 38 -         Err(e) => panic!(format!("Poison RwLock core::p_append(): {:?}", e)),
[INFO] [stdout] 38 +         Err(e) => panic!("Poison RwLock core::p_append(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Err(e) => panic!(format!("Poison mutex core::p_append(): {:?}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 52 -         Err(e) => panic!(format!("Poison mutex core::p_append(): {:?}", e)),
[INFO] [stdout] 52 +         Err(e) => panic!("Poison mutex core::p_append(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/persistence/mod.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 Err(e) => panic!(format!("{:?}", e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 65 -                 Err(e) => panic!(format!("{:?}", e)),
[INFO] [stdout] 65 +                 Err(e) => panic!("{:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "d30731181cfae6a70aeb4690431f554af1ca91be8dc501a6da49934282f1ccc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30731181cfae6a70aeb4690431f554af1ca91be8dc501a6da49934282f1ccc1", kill_on_drop: false }`
[INFO] [stdout] d30731181cfae6a70aeb4690431f554af1ca91be8dc501a6da49934282f1ccc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 275bbd9ef2361e06cabef2ad06b75d7d570ae7b67ca399b93dba50ad86df7148
[INFO] running `Command { std: "docker" "start" "-a" "275bbd9ef2361e06cabef2ad06b75d7d570ae7b67ca399b93dba50ad86df7148", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/persistence/mod.rs:88:15
[INFO] [stdout]    |
[INFO] [stdout] 88 |             e.description()
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:454:52
[INFO] [stdout]     |
[INFO] [stdout] 454 |                 error!("Error loading tags: {}", e.description());
[INFO] [stdout]     |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:641:65
[INFO] [stdout]     |
[INFO] [stdout] 641 |         Err(e) => panic!("File permission check failure: {}", e.description()),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IndexType` is never used
[INFO] [stdout]  --> src/ephemeral/page.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub(crate) enum IndexType {
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IndexPage` is never constructed
[INFO] [stdout]   --> src/ephemeral/page.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct IndexPage {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dirty` is never read
[INFO] [stdout]   --> src/ephemeral/page.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Page {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 38 |     #[serde(skip)]
[INFO] [stdout] 39 |     dirty: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Err(e) => panic!(format!("Poison RwLock core::p_append(): {:?}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 38 -         Err(e) => panic!(format!("Poison RwLock core::p_append(): {:?}", e)),
[INFO] [stdout] 38 +         Err(e) => panic!("Poison RwLock core::p_append(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Err(e) => panic!(format!("Poison mutex core::p_append(): {:?}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 52 -         Err(e) => panic!(format!("Poison mutex core::p_append(): {:?}", e)),
[INFO] [stdout] 52 +         Err(e) => panic!("Poison mutex core::p_append(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/persistence/mod.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 Err(e) => panic!(format!("{:?}", e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 65 -                 Err(e) => panic!(format!("{:?}", e)),
[INFO] [stdout] 65 +                 Err(e) => panic!("{:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mycelium_core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/tests.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(e) => (assert!(false, format!("Failure list_tags_test(): {:?}", e))),
[INFO] [stdout]    |                   ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 -         Err(e) => (assert!(false, format!("Failure list_tags_test(): {:?}", e))),
[INFO] [stdout] 44 +         Err(e) => false,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/persistence/mod.rs:88:15
[INFO] [stdout]    |
[INFO] [stdout] 88 |             e.description()
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:454:52
[INFO] [stdout]     |
[INFO] [stdout] 454 |                 error!("Error loading tags: {}", e.description());
[INFO] [stdout]     |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:641:65
[INFO] [stdout]     |
[INFO] [stdout] 641 |         Err(e) => panic!("File permission check failure: {}", e.description()),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IndexType` is never used
[INFO] [stdout]  --> src/ephemeral/page.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub(crate) enum IndexType {
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IndexPage` is never constructed
[INFO] [stdout]   --> src/ephemeral/page.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct IndexPage {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dirty` is never read
[INFO] [stdout]   --> src/ephemeral/page.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Page {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 38 |     #[serde(skip)]
[INFO] [stdout] 39 |     dirty: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestItem` is never constructed
[INFO] [stdout]  --> src/tests.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct TestItem {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Err(e) => panic!(format!("Poison RwLock core::p_append(): {:?}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 38 -         Err(e) => panic!(format!("Poison RwLock core::p_append(): {:?}", e)),
[INFO] [stdout] 38 +         Err(e) => panic!("Poison RwLock core::p_append(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Err(e) => panic!(format!("Poison mutex core::p_append(): {:?}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 52 -         Err(e) => panic!(format!("Poison mutex core::p_append(): {:?}", e)),
[INFO] [stdout] 52 +         Err(e) => panic!("Poison mutex core::p_append(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/persistence/mod.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 Err(e) => panic!(format!("{:?}", e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 65 -                 Err(e) => panic!(format!("{:?}", e)),
[INFO] [stdout] 65 +                 Err(e) => panic!("{:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests.rs:44:35
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Err(e) => (assert!(false, format!("Failure list_tags_test(): {:?}", e))),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 44 -         Err(e) => (assert!(false, format!("Failure list_tags_test(): {:?}", e))),
[INFO] [stdout] 44 +         Err(e) => (assert!(false, "Failure list_tags_test(): {:?}", e)),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests.rs:69:34
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Err(e) => assert!(false, format!("Failure refresh_test(): {:?}", e)),
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 69 -         Err(e) => assert!(false, format!("Failure refresh_test(): {:?}", e)),
[INFO] [stdout] 69 +         Err(e) => assert!(false, "Failure refresh_test(): {:?}", e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "275bbd9ef2361e06cabef2ad06b75d7d570ae7b67ca399b93dba50ad86df7148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275bbd9ef2361e06cabef2ad06b75d7d570ae7b67ca399b93dba50ad86df7148", kill_on_drop: false }`
[INFO] [stdout] 275bbd9ef2361e06cabef2ad06b75d7d570ae7b67ca399b93dba50ad86df7148
