[INFO] cloning repository https://github.com/EthanYidong/wasm-sio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EthanYidong/wasm-sio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYidong%2Fwasm-sio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYidong%2Fwasm-sio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59348cb4b6643d5fd2a8cc63fa22f9018924da44
[INFO] checking EthanYidong/wasm-sio against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYidong%2Fwasm-sio" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EthanYidong/wasm-sio 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/EthanYidong/wasm-sio
[INFO] finished tweaking git repo https://github.com/EthanYidong/wasm-sio
[INFO] tweaked toml for git repo https://github.com/EthanYidong/wasm-sio written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/EthanYidong/wasm-sio 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmer-wasi v1.0.1
[INFO] [stderr]   Downloaded wasmer-derive v1.0.1
[INFO] [stderr]   Downloaded wasmer-engine-jit v1.0.1
[INFO] [stderr]   Downloaded erased-serde v0.3.13
[INFO] [stderr]   Downloaded wasmer-compiler-cranelift v1.0.1
[INFO] [stderr]   Downloaded ctor v0.1.18
[INFO] [stderr]   Downloaded typetag-impl v0.1.7
[INFO] [stderr]   Downloaded typetag v0.1.7
[INFO] [stderr]   Downloaded wasmer-engine v1.0.1
[INFO] [stderr]   Downloaded libc v0.2.83
[INFO] [stderr]   Downloaded raw-cpuid v7.0.4
[INFO] [stderr]   Downloaded wasmer_enumset v1.0.1
[INFO] [stderr]   Downloaded wasmer-engine-native v1.0.1
[INFO] [stderr]   Downloaded wasmer-types v1.0.1
[INFO] [stderr]   Downloaded wasmer v1.0.1
[INFO] [stderr]   Downloaded wasmer_enumset_derive v0.5.0
[INFO] [stderr]   Downloaded wasmer-compiler v1.0.1
[INFO] [stderr]   Downloaded wasmer-object v1.0.1
[INFO] [stderr]   Downloaded wasmer-vm v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b962f7a16f4682f0ee06c946f333af4b949b2bd1fd235f7d9797f82facd452fb
[INFO] running `Command { std: "docker" "start" "-a" "b962f7a16f4682f0ee06c946f333af4b949b2bd1fd235f7d9797f82facd452fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b962f7a16f4682f0ee06c946f333af4b949b2bd1fd235f7d9797f82facd452fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b962f7a16f4682f0ee06c946f333af4b949b2bd1fd235f7d9797f82facd452fb", kill_on_drop: false }`
[INFO] [stdout] b962f7a16f4682f0ee06c946f333af4b949b2bd1fd235f7d9797f82facd452fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 86a7ea3719102946915daf732e1c733b4a281ed69875393daaf538d19adf1584
[INFO] running `Command { std: "docker" "start" "-a" "86a7ea3719102946915daf732e1c733b4a281ed69875393daaf538d19adf1584", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling libc v0.2.83
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking wasmparser v0.65.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v1.0.1
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap2 v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking wast v32.0.0
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling wasmer-vm v1.0.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking wat v1.0.33
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ctor v0.1.18
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling wasmer-derive v1.0.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking which v4.0.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling wasmer_enumset_derive v0.5.0
[INFO] [stderr]     Checking wasmer_enumset v1.0.1
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking erased-serde v0.3.13
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking wasmer-types v1.0.1
[INFO] [stderr]     Checking cranelift-bforest v0.68.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]     Checking typetag v0.1.7
[INFO] [stderr]     Checking wasmer-compiler v1.0.1
[INFO] [stderr]     Checking wasmer-engine v1.0.1
[INFO] [stderr]     Checking wasmer-object v1.0.1
[INFO] [stderr]     Checking wasmer-engine-native v1.0.1
[INFO] [stderr]     Checking wasmer-engine-jit v1.0.1
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking cranelift-frontend v0.68.0
[INFO] [stderr]     Checking wasmer v1.0.1
[INFO] [stderr]     Checking wasmer-wasi v1.0.1
[INFO] [stderr]     Checking wasm-sio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/sio.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn sio_stdout_print_num(env: &SioEnv, num: i32) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/sio.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn sio_stdout_print_num(env: &SioEnv, num: i32) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 54.80s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.68.0, wasmparser v0.65.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "86a7ea3719102946915daf732e1c733b4a281ed69875393daaf538d19adf1584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a7ea3719102946915daf732e1c733b4a281ed69875393daaf538d19adf1584", kill_on_drop: false }`
[INFO] [stdout] 86a7ea3719102946915daf732e1c733b4a281ed69875393daaf538d19adf1584
[INFO] checking EthanYidong/wasm-sio against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYidong%2Fwasm-sio" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EthanYidong/wasm-sio 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/EthanYidong/wasm-sio
[INFO] finished tweaking git repo https://github.com/EthanYidong/wasm-sio
[INFO] tweaked toml for git repo https://github.com/EthanYidong/wasm-sio written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/EthanYidong/wasm-sio 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c297313081c0bc8efbd8750d57b869307d295fe8dc5ebf2e54646944bc7221e5
[INFO] running `Command { std: "docker" "start" "-a" "c297313081c0bc8efbd8750d57b869307d295fe8dc5ebf2e54646944bc7221e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c297313081c0bc8efbd8750d57b869307d295fe8dc5ebf2e54646944bc7221e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c297313081c0bc8efbd8750d57b869307d295fe8dc5ebf2e54646944bc7221e5", kill_on_drop: false }`
[INFO] [stdout] c297313081c0bc8efbd8750d57b869307d295fe8dc5ebf2e54646944bc7221e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ba13c2727030dd5caea3fa21e25e9bc9001546de8be6f82f4b7ae5775b6fccc2
[INFO] running `Command { std: "docker" "start" "-a" "ba13c2727030dd5caea3fa21e25e9bc9001546de8be6f82f4b7ae5775b6fccc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling libc v0.2.83
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]     Checking wasmparser v0.65.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v1.0.1
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking wast v32.0.0
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap2 v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling wasmer-vm v1.0.1
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking wat v1.0.33
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ctor v0.1.18
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling wasmer-derive v1.0.1
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling wasmer_enumset_derive v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking which v4.0.2
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking wasmer_enumset v1.0.1
[INFO] [stderr]     Checking cranelift-entity v0.68.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking erased-serde v0.3.13
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking wasmer-types v1.0.1
[INFO] [stderr]     Checking cranelift-bforest v0.68.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]     Checking typetag v0.1.7
[INFO] [stderr]     Checking wasmer-compiler v1.0.1
[INFO] [stderr]     Checking wasmer-engine v1.0.1
[INFO] [stderr]     Checking wasmer-object v1.0.1
[INFO] [stderr]     Checking wasmer-engine-jit v1.0.1
[INFO] [stderr]     Checking wasmer-engine-native v1.0.1
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking cranelift-frontend v0.68.0
[INFO] [stderr]     Checking wasmer v1.0.1
[INFO] [stderr]     Checking wasmer-wasi v1.0.1
[INFO] [stderr]     Checking wasm-sio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/sio.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn sio_stdout_print_num(env: &SioEnv, num: i32) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/sio.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn sio_stdout_print_num(env: &SioEnv, num: i32) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 56.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.68.0, wasmparser v0.65.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "ba13c2727030dd5caea3fa21e25e9bc9001546de8be6f82f4b7ae5775b6fccc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba13c2727030dd5caea3fa21e25e9bc9001546de8be6f82f4b7ae5775b6fccc2", kill_on_drop: false }`
[INFO] [stdout] ba13c2727030dd5caea3fa21e25e9bc9001546de8be6f82f4b7ae5775b6fccc2