[INFO] cloning repository https://github.com/dominik-korsa/iobot [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dominik-korsa/iobot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominik-korsa%2Fiobot", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominik-korsa%2Fiobot'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ec767579b5007323379aa164f2670a13987348e5 [INFO] checking dominik-korsa/iobot against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominik-korsa%2Fiobot" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dominik-korsa/iobot on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dominik-korsa/iobot [INFO] finished tweaking git repo https://github.com/dominik-korsa/iobot [INFO] tweaked toml for git repo https://github.com/dominik-korsa/iobot written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dominik-korsa/iobot 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded windows_macros v0.9.1 [INFO] [stderr] Downloaded const-sha1 v0.2.0 [INFO] [stderr] Downloaded serde_yaml v0.8.21 [INFO] [stderr] Downloaded indicatif v0.16.2 [INFO] [stderr] Downloaded os_str_bytes v4.2.0 [INFO] [stderr] Downloaded dialoguer v0.9.0 [INFO] [stderr] Downloaded console v0.15.0 [INFO] [stderr] Downloaded clap_derive v3.0.0-beta.5 [INFO] [stderr] Downloaded clap v3.0.0-beta.5 [INFO] [stderr] Downloaded windows v0.9.1 [INFO] [stderr] Downloaded libc v0.2.105 [INFO] [stderr] Downloaded windows_gen v0.9.1 [INFO] [stderr] Downloaded trash v2.0.2 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3351084d0cbb9f87bc7b057bb2d375872cbd828c4aec4f616cdeff1536afaa6b [INFO] running `Command { std: "docker" "start" "-a" "3351084d0cbb9f87bc7b057bb2d375872cbd828c4aec4f616cdeff1536afaa6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3351084d0cbb9f87bc7b057bb2d375872cbd828c4aec4f616cdeff1536afaa6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3351084d0cbb9f87bc7b057bb2d375872cbd828c4aec4f616cdeff1536afaa6b", kill_on_drop: false }` [INFO] [stdout] 3351084d0cbb9f87bc7b057bb2d375872cbd828c4aec4f616cdeff1536afaa6b [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 85c42486455e8d2efd1282a979aaf1c72f204ae9023ee72c01f30e1418ba433e [INFO] running `Command { std: "docker" "start" "-a" "85c42486455e8d2efd1282a979aaf1c72f204ae9023ee72c01f30e1418ba433e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.105 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling const-sha1 v0.2.0 [INFO] [stderr] Checking matches v0.1.9 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking unicode-bidi v0.3.7 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking textwrap v0.14.2 [INFO] [stderr] Checking os_str_bytes v4.2.0 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking zeroize v1.4.2 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking fs_extra v1.2.0 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking url v2.2.2 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking console v0.15.0 [INFO] [stderr] Checking indicatif v0.16.2 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking dialoguer v0.9.0 [INFO] [stderr] Compiling windows_gen v0.9.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.5 [INFO] [stderr] Checking clap v3.0.0-beta.5 [INFO] [stderr] Compiling windows_macros v0.9.1 [INFO] [stderr] Compiling windows v0.9.1 [INFO] [stderr] Compiling trash v2.0.2 [INFO] [stderr] Checking serde_yaml v0.8.21 [INFO] [stderr] Checking iobot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `as_files` and `as_input_ref` are never used [INFO] [stdout] --> src/config.rs:96:12 [INFO] [stdout] | [INFO] [stdout] 95 | impl FilesInput { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] 96 | pub fn as_files(&self) -> &Files { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn as_input_ref(&self) -> InputRef { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_input` is never used [INFO] [stdout] --> src/config.rs:162:12 [INFO] [stdout] | [INFO] [stdout] 157 | impl Config { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 162 | pub fn get_input(&self) -> InputRef { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | IO(io::Error), [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 43 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `index` and `error` are never read [INFO] [stdout] --> src/generator.rs:44:11 [INFO] [stdout] | [INFO] [stdout] 44 | Run { index: u64, error: RunError }, [INFO] [stdout] | --- ^^^^^ ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:45:22 [INFO] [stdout] | [INFO] [stdout] 45 | GeneratorCompile(CompileError), [INFO] [stdout] | ---------------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 45 | GeneratorCompile(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:144:8 [INFO] [stdout] | [INFO] [stdout] 144 | IO(io::Error), [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 144 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | Run(RunError), [INFO] [stdout] | --- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 145 | Run(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:146:22 [INFO] [stdout] | [INFO] [stdout] 146 | GeneratorCompile(CompileError), [INFO] [stdout] | ---------------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 146 | GeneratorCompile(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/runner.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | IO(io::Error), [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 23 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/runner.rs:75:21 [INFO] [stdout] | [INFO] [stdout] 75 | pub struct RunError(pub Option); [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 75 | pub struct RunError(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_lines` is never used [INFO] [stdout] --> src/utils.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn to_lines(output: &Vec) -> Result, Utf8Error> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Output` is never constructed [INFO] [stdout] --> src/utils.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 31 | pub enum FilesType { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 32 | Input, [INFO] [stdout] 33 | Output, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FilesType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `as_files` and `as_input_ref` are never used [INFO] [stdout] --> src/config.rs:96:12 [INFO] [stdout] | [INFO] [stdout] 95 | impl FilesInput { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] 96 | pub fn as_files(&self) -> &Files { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn as_input_ref(&self) -> InputRef { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_input` is never used [INFO] [stdout] --> src/config.rs:162:12 [INFO] [stdout] | [INFO] [stdout] 157 | impl Config { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 162 | pub fn get_input(&self) -> InputRef { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | IO(io::Error), [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 43 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `index` and `error` are never read [INFO] [stdout] --> src/generator.rs:44:11 [INFO] [stdout] | [INFO] [stdout] 44 | Run { index: u64, error: RunError }, [INFO] [stdout] | --- ^^^^^ ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:45:22 [INFO] [stdout] | [INFO] [stdout] 45 | GeneratorCompile(CompileError), [INFO] [stdout] | ---------------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 45 | GeneratorCompile(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:144:8 [INFO] [stdout] | [INFO] [stdout] 144 | IO(io::Error), [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 144 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | Run(RunError), [INFO] [stdout] | --- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 145 | Run(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/generator.rs:146:22 [INFO] [stdout] | [INFO] [stdout] 146 | GeneratorCompile(CompileError), [INFO] [stdout] | ---------------- ^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 146 | GeneratorCompile(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/runner.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | IO(io::Error), [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 23 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/runner.rs:75:21 [INFO] [stdout] | [INFO] [stdout] 75 | pub struct RunError(pub Option); [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 75 | pub struct RunError(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_lines` is never used [INFO] [stdout] --> src/utils.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn to_lines(output: &Vec) -> Result, Utf8Error> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Output` is never constructed [INFO] [stdout] --> src/utils.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 31 | pub enum FilesType { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 32 | Input, [INFO] [stdout] 33 | Output, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FilesType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.94s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0 [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" "85c42486455e8d2efd1282a979aaf1c72f204ae9023ee72c01f30e1418ba433e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85c42486455e8d2efd1282a979aaf1c72f204ae9023ee72c01f30e1418ba433e", kill_on_drop: false }` [INFO] [stdout] 85c42486455e8d2efd1282a979aaf1c72f204ae9023ee72c01f30e1418ba433e [INFO] checking dominik-korsa/iobot against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominik-korsa%2Fiobot" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dominik-korsa/iobot on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dominik-korsa/iobot [INFO] finished tweaking git repo https://github.com/dominik-korsa/iobot [INFO] tweaked toml for git repo https://github.com/dominik-korsa/iobot written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dominik-korsa/iobot 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 75074f809b7fb3ce9204a1dc4c014f242ca041efbb0b0428d35fe545ade47b38 [INFO] running `Command { std: "docker" "start" "-a" "75074f809b7fb3ce9204a1dc4c014f242ca041efbb0b0428d35fe545ade47b38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "75074f809b7fb3ce9204a1dc4c014f242ca041efbb0b0428d35fe545ade47b38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75074f809b7fb3ce9204a1dc4c014f242ca041efbb0b0428d35fe545ade47b38", kill_on_drop: false }` [INFO] [stdout] 75074f809b7fb3ce9204a1dc4c014f242ca041efbb0b0428d35fe545ade47b38 [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a264c4feb21c468145e78e4972672992ecafcf824e1eea831c98f57a5f255a7d [INFO] running `Command { std: "docker" "start" "-a" "a264c4feb21c468145e78e4972672992ecafcf824e1eea831c98f57a5f255a7d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.105 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking matches v0.1.9 [INFO] [stderr] Compiling const-sha1 v0.2.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking unicode-bidi v0.3.7 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking os_str_bytes v4.2.0 [INFO] [stderr] Checking textwrap v0.14.2 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking zeroize v1.4.2 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking fs_extra v1.2.0 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/uuid-0.8.2/src/builder/mod.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 81 | Err(Error::new(D4_LEN, len))?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 81 | Err::(Error::new(D4_LEN, len))?; [INFO] [stdout] | ++++++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/uuid-0.8.2/src/builder/mod.rs:138:13 [INFO] [stdout] | [INFO] [stdout] 138 | Err(Error::new(D4_LEN, len))?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 138 | Err::(Error::new(D4_LEN, len))?; [INFO] [stdout] | ++++++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/uuid-0.8.2/src/builder/mod.rs:246:13 [INFO] [stdout] | [INFO] [stdout] 246 | Err(Error::new(BYTES_LEN, len))?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 246 | Err::(Error::new(BYTES_LEN, len))?; [INFO] [stdout] | ++++++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/uuid-0.8.2/src/builder/mod.rs:353:13 [INFO] [stdout] | [INFO] [stdout] 353 | Err(Error::new(BYTES_LEN, len))?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 353 | Err::(Error::new(BYTES_LEN, len))?; [INFO] [stdout] | ++++++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking url v2.2.2 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/uuid-0.8.2/src/parser/mod.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | Err(Error::InvalidLength { [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 67 | Err::(Error::InvalidLength { [INFO] [stdout] | +++++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `uuid` (lib) due to 6 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "a264c4feb21c468145e78e4972672992ecafcf824e1eea831c98f57a5f255a7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a264c4feb21c468145e78e4972672992ecafcf824e1eea831c98f57a5f255a7d", kill_on_drop: false }` [INFO] [stdout] a264c4feb21c468145e78e4972672992ecafcf824e1eea831c98f57a5f255a7d