[INFO] fetching crate wasmer-inline-c 0.1.2...
[INFO] testing wasmer-inline-c-0.1.2 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate wasmer-inline-c 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate wasmer-inline-c 0.1.2
[INFO] finished tweaking crates.io crate wasmer-inline-c 0.1.2
[INFO] tweaked toml for crates.io crate wasmer-inline-c 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasmer-inline-c 0.1.2 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding assert_cmd v1.0.8 (available: v2.0.17)
[INFO] [stderr]       Adding predicates v2.1.5 (available: v3.1.3)
[INFO] [stderr]       Adding rustc_version v0.3.3 (available: v0.4.1)
[INFO] [stderr]       Adding target-lexicon v0.11.2 (available: v0.13.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates v2.1.5
[INFO] [stderr]   Downloaded assert_cmd v1.0.8
[INFO] [stderr]   Downloaded termtree v0.5.1
[INFO] [stderr]   Downloaded predicates-core v1.0.9
[INFO] [stderr]   Downloaded wasmer-inline-c-macro v0.1.6
[INFO] [stderr]   Downloaded predicates-tree v1.0.12
[INFO] [stderr]   Downloaded target-lexicon v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1614fa910ac4ba3e0f2e10d409ea55ee1518fa0acc24344f372f0fa4b28a6411
[INFO] running `Command { std: "docker" "start" "-a" "1614fa910ac4ba3e0f2e10d409ea55ee1518fa0acc24344f372f0fa4b28a6411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1614fa910ac4ba3e0f2e10d409ea55ee1518fa0acc24344f372f0fa4b28a6411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1614fa910ac4ba3e0f2e10d409ea55ee1518fa0acc24344f372f0fa4b28a6411", kill_on_drop: false }`
[INFO] [stdout] 1614fa910ac4ba3e0f2e10d409ea55ee1518fa0acc24344f372f0fa4b28a6411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a090b3f74f615e2d24e84524fc6807983b8f435b98728f2f01692b8d4495824b
[INFO] running `Command { std: "docker" "start" "-a" "a090b3f74f615e2d24e84524fc6807983b8f435b98728f2f01692b8d4495824b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling target-lexicon v0.11.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling predicates v2.1.5
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling assert_cmd v1.0.8
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling pest v2.8.2
[INFO] [stderr]    Compiling semver-parser v0.10.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling wasmer-inline-c-macro v0.1.6
[INFO] [stderr]    Compiling wasmer-inline-c v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cppflags`
[INFO] [stdout]    --> src/lib.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let cppflags = get_env_flags(&variables, "CPPFLAGS");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cppflags`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cxxflags`
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let cxxflags = get_env_flags(&variables, "CXXFLAGS");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cxxflags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:280:64
[INFO] [stdout]     |
[INFO] [stdout] 280 |             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 280 -             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stdout] 280 +             if let Ok(symlink) = std::fs::read_to_string(parent.join(&file)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:294:38
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     let path = parent.clone().join(s);
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 294 -                     let path = parent.clone().join(s);
[INFO] [stdout] 294 +                     let path = parent.join(s);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.30s
[INFO] running `Command { std: "docker" "inspect" "a090b3f74f615e2d24e84524fc6807983b8f435b98728f2f01692b8d4495824b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a090b3f74f615e2d24e84524fc6807983b8f435b98728f2f01692b8d4495824b", kill_on_drop: false }`
[INFO] [stdout] a090b3f74f615e2d24e84524fc6807983b8f435b98728f2f01692b8d4495824b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff0ddb1ec30b152c3a52dd306a447997a16f657efb2960040af85bbae88aeda
[INFO] running `Command { std: "docker" "start" "-a" "1ff0ddb1ec30b152c3a52dd306a447997a16f657efb2960040af85bbae88aeda", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `cppflags`
[INFO] [stdout]    --> src/lib.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let cppflags = get_env_flags(&variables, "CPPFLAGS");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cppflags`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cxxflags`
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let cxxflags = get_env_flags(&variables, "CXXFLAGS");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cxxflags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:280:64
[INFO] [stdout]     |
[INFO] [stdout] 280 |             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 280 -             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stdout] 280 +             if let Ok(symlink) = std::fs::read_to_string(parent.join(&file)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:294:38
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     let path = parent.clone().join(s);
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 294 -                     let path = parent.clone().join(s);
[INFO] [stdout] 294 +                     let path = parent.join(s);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasmer-inline-c v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cppflags`
[INFO] [stdout]    --> src/lib.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let cppflags = get_env_flags(&variables, "CPPFLAGS");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cppflags`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cxxflags`
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let cxxflags = get_env_flags(&variables, "CXXFLAGS");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cxxflags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:280:64
[INFO] [stdout]     |
[INFO] [stdout] 280 |             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 280 -             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stdout] 280 +             if let Ok(symlink) = std::fs::read_to_string(parent.join(&file)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:294:38
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     let path = parent.clone().join(s);
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 294 -                     let path = parent.clone().join(s);
[INFO] [stdout] 294 +                     let path = parent.join(s);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "1ff0ddb1ec30b152c3a52dd306a447997a16f657efb2960040af85bbae88aeda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff0ddb1ec30b152c3a52dd306a447997a16f657efb2960040af85bbae88aeda", kill_on_drop: false }`
[INFO] [stdout] 1ff0ddb1ec30b152c3a52dd306a447997a16f657efb2960040af85bbae88aeda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b7cdfe08bb1e85b453e1b77a2324499151639475bf9e522457fd621d5e4bd2f
[INFO] running `Command { std: "docker" "start" "-a" "2b7cdfe08bb1e85b453e1b77a2324499151639475bf9e522457fd621d5e4bd2f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cppflags`
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:147:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 147 |         let cppflags = get_env_flags(&variables, "CPPFLAGS");
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cppflags`
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cxxflags`
[INFO] [stderr]    --> src/lib.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let cxxflags = get_env_flags(&variables, "CXXFLAGS");
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cxxflags`
[INFO] [stderr] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/lib.rs:280:64
[INFO] [stderr]     |
[INFO] [stderr] 280 |             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stderr]     |                                                                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr] 280 -             if let Ok(symlink) = std::fs::read_to_string(parent.clone().join(&file)) {
[INFO] [stderr] 280 +             if let Ok(symlink) = std::fs::read_to_string(parent.join(&file)) {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/lib.rs:294:38
[INFO] [stderr]     |
[INFO] [stderr] 294 |                     let path = parent.clone().join(s);
[INFO] [stderr]     |                                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stderr] help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr] 294 -                     let path = parent.clone().join(s);
[INFO] [stderr] 294 +                     let path = parent.join(s);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs:2210:1: 2210:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/path.rs" }) }
[INFO] [stderr] warning: `wasmer-inline-c` (lib) generated 4 warnings (run `cargo fix --lib -p wasmer-inline-c` to apply 2 suggestions)
[INFO] [stderr] warning: `wasmer-inline-c` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wasmer_inline_c-2e79068c1b997762)
[INFO] [stderr]    Doc-tests wasmer_inline_c
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2b7cdfe08bb1e85b453e1b77a2324499151639475bf9e522457fd621d5e4bd2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7cdfe08bb1e85b453e1b77a2324499151639475bf9e522457fd621d5e4bd2f", kill_on_drop: false }`
[INFO] [stdout] 2b7cdfe08bb1e85b453e1b77a2324499151639475bf9e522457fd621d5e4bd2f