[INFO] fetching crate evertils-log-helper 0.4.1... [INFO] checking evertils-log-helper-0.4.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] extracting crate evertils-log-helper 0.4.1 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate evertils-log-helper 0.4.1 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 evertils-log-helper 0.4.1 [INFO] finished tweaking crates.io crate evertils-log-helper 0.4.1 [INFO] tweaked toml for crates.io crate evertils-log-helper 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate crates.io crate evertils-log-helper 0.4.1 already has a lockfile, it will not be regenerated [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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] cc395ba7511965480db5e601c3ccb1d44a6e4e668cf37875870038bedaad60a1 [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" "cc395ba7511965480db5e601c3ccb1d44a6e4e668cf37875870038bedaad60a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cc395ba7511965480db5e601c3ccb1d44a6e4e668cf37875870038bedaad60a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc395ba7511965480db5e601c3ccb1d44a6e4e668cf37875870038bedaad60a1", kill_on_drop: false }` [INFO] [stdout] cc395ba7511965480db5e601c3ccb1d44a6e4e668cf37875870038bedaad60a1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f6e99aaa62e1c236504aa487854737a04222b9291de80e4f638d3409879ed27b [INFO] running `Command { std: "docker" "start" "-a" "f6e99aaa62e1c236504aa487854737a04222b9291de80e4f638d3409879ed27b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking evertils-log-helper v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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 function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_generic` [INFO] [stdout] --> src/helper/rolling_log.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn write_generic(message: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new_day` [INFO] [stdout] --> src/helper/rolling_log.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn new_day() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print` [INFO] [stdout] --> src/helper/output.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn print(value: &T) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_generic` [INFO] [stdout] --> src/helper/rolling_log.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn write_generic(message: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new_day` [INFO] [stdout] --> src/helper/rolling_log.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn new_day() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print` [INFO] [stdout] --> src/helper/output.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn print(value: &T) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_generic` [INFO] [stdout] --> src/helper/rolling_log.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn write_generic(message: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new_day` [INFO] [stdout] --> src/helper/rolling_log.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn new_day() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print` [INFO] [stdout] --> src/helper/output.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn print(value: &T) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_generic` [INFO] [stdout] --> src/helper/rolling_log.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn write_generic(message: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new_day` [INFO] [stdout] --> src/helper/rolling_log.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn new_day() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print` [INFO] [stdout] --> src/helper/output.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn print(value: &T) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_generic` [INFO] [stdout] --> src/helper/rolling_log.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn write_generic(message: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new_day` [INFO] [stdout] --> src/helper/rolling_log.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn new_day() { [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: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/helper/output.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | let value_any = value as &Any; [INFO] [stdout] | ^^^ help: use `dyn`: `dyn Any` [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: function is never used: `write` [INFO] [stdout] --> src/helper/rolling_log.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn write(message: String) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `update` [INFO] [stdout] --> src/helper/rolling_log.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn update(message: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write_generic` [INFO] [stdout] --> src/helper/rolling_log.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn write_generic(message: String) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new_day` [INFO] [stdout] --> src/helper/rolling_log.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn new_day() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead. [INFO] [stdout] --> src/helper/rolling_log.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | match env::home_dir() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `write` [INFO] [stdout] --> src/helper/rolling_log.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn write(message: String) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `update` [INFO] [stdout] --> src/helper/rolling_log.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn update(message: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.32s [INFO] running `Command { std: "docker" "inspect" "f6e99aaa62e1c236504aa487854737a04222b9291de80e4f638d3409879ed27b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6e99aaa62e1c236504aa487854737a04222b9291de80e4f638d3409879ed27b", kill_on_drop: false }` [INFO] [stdout] f6e99aaa62e1c236504aa487854737a04222b9291de80e4f638d3409879ed27b