[INFO] fetching crate roundqueue 0.2.9... [INFO] checking roundqueue-0.2.9 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate roundqueue 0.2.9 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate roundqueue 0.2.9 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate roundqueue 0.2.9 [INFO] finished tweaking crates.io crate roundqueue 0.2.9 [INFO] tweaked toml for crates.io crate roundqueue 0.2.9 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate roundqueue 0.2.9 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded git-version-macro v0.3.4 [INFO] [stderr] Downloaded git-version v0.3.4 [INFO] [stderr] Downloaded libflate_lz77 v1.0.0 [INFO] [stderr] Downloaded dirs v3.0.1 [INFO] [stderr] Downloaded serde_json v1.0.62 [INFO] [stderr] Downloaded libflate v1.0.3 [INFO] [stderr] Downloaded notify v4.0.15 [INFO] [stderr] Downloaded procfs v0.8.1 [INFO] [stderr] Downloaded shared_child v0.3.4 [INFO] [stderr] Downloaded unix-daemonize v0.1.2 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 726418ac2ca2b86a6742531ab16be7a6ab7f2a1ec60e23ccaa38431c3beae120 [INFO] running `Command { std: "docker" "start" "-a" "726418ac2ca2b86a6742531ab16be7a6ab7f2a1ec60e23ccaa38431c3beae120", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "726418ac2ca2b86a6742531ab16be7a6ab7f2a1ec60e23ccaa38431c3beae120", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "726418ac2ca2b86a6742531ab16be7a6ab7f2a1ec60e23ccaa38431c3beae120", kill_on_drop: false }` [INFO] [stdout] 726418ac2ca2b86a6742531ab16be7a6ab7f2a1ec60e23ccaa38431c3beae120 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9c385152f265d8fb067c5311a9f03f7724e04e8a0630c1b464536c62ac0e6c4 [INFO] running `Command { std: "docker" "start" "-a" "c9c385152f265d8fb067c5311a9f03f7724e04e8a0630c1b464536c62ac0e6c4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling serde_json v1.0.62 [INFO] [stderr] Checking libflate_lz77 v1.0.0 [INFO] [stderr] Checking rle-decode-fast v1.0.1 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking match_cfg v0.1.0 [INFO] [stderr] Checking byteorder v1.4.2 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking libflate v1.0.3 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking filetime v0.2.14 [INFO] [stderr] Checking unix-daemonize v0.1.2 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking shared_child v0.3.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking dirs v3.0.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.15 [INFO] [stderr] Checking procfs v0.8.1 [INFO] [stderr] Compiling git-version-macro v0.3.4 [INFO] [stderr] Checking git-version v0.3.4 [INFO] [stderr] Checking roundqueue v0.2.9 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/longthreads.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/longthreads.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:366:21 [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 366 | while let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ))? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 366 | if let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:366:21 [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 366 | while let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ))? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 366 | if let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `add_file` and `expect_file` are never used [INFO] [stdout] --> tests/lib.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl TempDir { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 57 | fn add_file(&self, p: &str, contents: &[u8]) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | fn expect_file(&self, p: &str, contents: &[u8]) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.28s [INFO] running `Command { std: "docker" "inspect" "c9c385152f265d8fb067c5311a9f03f7724e04e8a0630c1b464536c62ac0e6c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9c385152f265d8fb067c5311a9f03f7724e04e8a0630c1b464536c62ac0e6c4", kill_on_drop: false }` [INFO] [stdout] c9c385152f265d8fb067c5311a9f03f7724e04e8a0630c1b464536c62ac0e6c4 [INFO] checking roundqueue-0.2.9 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate roundqueue 0.2.9 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate roundqueue 0.2.9 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate roundqueue 0.2.9 [INFO] finished tweaking crates.io crate roundqueue 0.2.9 [INFO] tweaked toml for crates.io crate roundqueue 0.2.9 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate roundqueue 0.2.9 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 48ac47b4636d94147ffd95f3c0a49d1b47b78265cca27ff2233bd4339e378ae0 [INFO] running `Command { std: "docker" "start" "-a" "48ac47b4636d94147ffd95f3c0a49d1b47b78265cca27ff2233bd4339e378ae0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "48ac47b4636d94147ffd95f3c0a49d1b47b78265cca27ff2233bd4339e378ae0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48ac47b4636d94147ffd95f3c0a49d1b47b78265cca27ff2233bd4339e378ae0", kill_on_drop: false }` [INFO] [stdout] 48ac47b4636d94147ffd95f3c0a49d1b47b78265cca27ff2233bd4339e378ae0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b382fd38da59d1667ca44de6838a40818a1608069fdbcf63679c88844f58753c [INFO] running `Command { std: "docker" "start" "-a" "b382fd38da59d1667ca44de6838a40818a1608069fdbcf63679c88844f58753c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Compiling serde_json v1.0.62 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking libflate_lz77 v1.0.0 [INFO] [stderr] Checking rle-decode-fast v1.0.1 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking hex v0.4.2 [INFO] [stderr] Checking match_cfg v0.1.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking byteorder v1.4.2 [INFO] [stderr] Checking libflate v1.0.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking filetime v0.2.14 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking unix-daemonize v0.1.2 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking shared_child v0.3.4 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking dirs v3.0.1 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.15 [INFO] [stderr] Checking procfs v0.8.1 [INFO] [stderr] Compiling git-version-macro v0.3.4 [INFO] [stderr] Checking git-version v0.3.4 [INFO] [stderr] Checking roundqueue v0.2.9 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/longthreads.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/longthreads.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std; [INFO] [stdout] | ^^^ the item `std` is already imported by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:366:21 [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 366 | while let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ))? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 366 | if let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:366:21 [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 366 | while let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 366 | for node in std::fs::read_dir(my_homedir.join(RQ))? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 366 | if let Ok(node) = std::fs::read_dir(my_homedir.join(RQ)) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `add_file` and `expect_file` are never used [INFO] [stdout] --> tests/lib.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl TempDir { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 57 | fn add_file(&self, p: &str, contents: &[u8]) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | fn expect_file(&self, p: &str, contents: &[u8]) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.23s [INFO] running `Command { std: "docker" "inspect" "b382fd38da59d1667ca44de6838a40818a1608069fdbcf63679c88844f58753c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b382fd38da59d1667ca44de6838a40818a1608069fdbcf63679c88844f58753c", kill_on_drop: false }` [INFO] [stdout] b382fd38da59d1667ca44de6838a40818a1608069fdbcf63679c88844f58753c