[INFO] cloning repository https://github.com/hjiayz/quickjs_regex [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hjiayz/quickjs_regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0d1f715aebc69b70bfc3f9a6509415891bb94175 [INFO] checking hjiayz/quickjs_regex against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hjiayz/quickjs_regex 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 git repo https://github.com/hjiayz/quickjs_regex [INFO] finished tweaking git repo https://github.com/hjiayz/quickjs_regex [INFO] tweaked toml for git repo https://github.com/hjiayz/quickjs_regex written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hjiayz/quickjs_regex 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b9095df76a85fce1970407571a3ba04e7a6c59e3d3d83f8d4461b08f07c9b845 [INFO] running `Command { std: "docker" "start" "-a" "b9095df76a85fce1970407571a3ba04e7a6c59e3d3d83f8d4461b08f07c9b845", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b9095df76a85fce1970407571a3ba04e7a6c59e3d3d83f8d4461b08f07c9b845", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9095df76a85fce1970407571a3ba04e7a6c59e3d3d83f8d4461b08f07c9b845", kill_on_drop: false }` [INFO] [stdout] b9095df76a85fce1970407571a3ba04e7a6c59e3d3d83f8d4461b08f07c9b845 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b5501500ce12ec6359602849052bb0519b4296da978f97d118c1a7eeda01ff81 [INFO] running `Command { std: "docker" "start" "-a" "b5501500ce12ec6359602849052bb0519b4296da978f97d118c1a7eeda01ff81", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling serde_json v1.0.69 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling jobserver v0.1.24 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking quote v1.0.10 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling cc v1.0.70 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Compiling quickjs_regex_backend v0.1.0 (/opt/rustwide/workdir/quickjs_regex_backend) [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> quickjs_regex_backend/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> quickjs_regex_backend/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> quickjs_regex_backend/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling proc-macro-crate v1.1.0 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking quickjs_regex_derive v0.1.2 (/opt/rustwide/workdir/quickjs_regex_derive) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking quickjs_regex v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.71s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "b5501500ce12ec6359602849052bb0519b4296da978f97d118c1a7eeda01ff81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5501500ce12ec6359602849052bb0519b4296da978f97d118c1a7eeda01ff81", kill_on_drop: false }` [INFO] [stdout] b5501500ce12ec6359602849052bb0519b4296da978f97d118c1a7eeda01ff81 [INFO] checking hjiayz/quickjs_regex against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hjiayz/quickjs_regex 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 git repo https://github.com/hjiayz/quickjs_regex [INFO] finished tweaking git repo https://github.com/hjiayz/quickjs_regex [INFO] tweaked toml for git repo https://github.com/hjiayz/quickjs_regex written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hjiayz/quickjs_regex 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2d8f5177437ed4fec30ab969d59b5ee10d559bf2a3fe58f485449877c9dd8b7b [INFO] running `Command { std: "docker" "start" "-a" "2d8f5177437ed4fec30ab969d59b5ee10d559bf2a3fe58f485449877c9dd8b7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2d8f5177437ed4fec30ab969d59b5ee10d559bf2a3fe58f485449877c9dd8b7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d8f5177437ed4fec30ab969d59b5ee10d559bf2a3fe58f485449877c9dd8b7b", kill_on_drop: false }` [INFO] [stdout] 2d8f5177437ed4fec30ab969d59b5ee10d559bf2a3fe58f485449877c9dd8b7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e8c5c839bbfa1544e1138ab01a5fe99b75b6b475338d8d3f9a4f30468f5ebb97 [INFO] running `Command { std: "docker" "start" "-a" "e8c5c839bbfa1544e1138ab01a5fe99b75b6b475338d8d3f9a4f30468f5ebb97", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling serde_json v1.0.69 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling jobserver v0.1.24 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking quote v1.0.10 [INFO] [stderr] Compiling cc v1.0.70 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Compiling quickjs_regex_backend v0.1.0 (/opt/rustwide/workdir/quickjs_regex_backend) [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> quickjs_regex_backend/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> quickjs_regex_backend/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> quickjs_regex_backend/src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Compiling proc-macro-crate v1.1.0 [INFO] [stderr] Checking quickjs_regex_derive v0.1.2 (/opt/rustwide/workdir/quickjs_regex_derive) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking quickjs_regex v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.02s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "e8c5c839bbfa1544e1138ab01a5fe99b75b6b475338d8d3f9a4f30468f5ebb97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8c5c839bbfa1544e1138ab01a5fe99b75b6b475338d8d3f9a4f30468f5ebb97", kill_on_drop: false }` [INFO] [stdout] e8c5c839bbfa1544e1138ab01a5fe99b75b6b475338d8d3f9a4f30468f5ebb97