[INFO] fetching crate open-vaf 0.4.2... [INFO] checking open-vaf-0.4.2 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] extracting crate open-vaf 0.4.2 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate open-vaf 0.4.2 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate open-vaf 0.4.2 [INFO] finished tweaking crates.io crate open-vaf 0.4.2 [INFO] tweaked toml for crates.io crate open-vaf 0.4.2 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bytecount v0.6.2 [INFO] [stderr] Downloaded parking_lot v0.10.2 [INFO] [stderr] Downloaded parking_lot_core v0.7.2 [INFO] [stderr] Downloaded logos-derive v0.11.5 [INFO] [stderr] Downloaded beef v0.4.4 [INFO] [stderr] Downloaded more-asserts v0.2.1 [INFO] [stderr] Downloaded intrusive-collections v0.9.0 [INFO] [stderr] Downloaded fixedbitset v0.3.2 [INFO] [stderr] Downloaded annotate-snippets v0.8.0 [INFO] [stderr] Downloaded ahash v0.3.8 [INFO] [stderr] Downloaded index_vec v0.1.2 [INFO] [stderr] Downloaded logos v0.11.4 [INFO] [stderr] Downloaded yansi-term v0.1.2 [INFO] [stderr] Downloaded fern v0.6.0 [INFO] [stderr] Downloaded rustc-ap-graphviz v662.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a1e655200828589303698600cecc953d62337e5848232f002322c3bf63369bb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0a1e655200828589303698600cecc953d62337e5848232f002322c3bf63369bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a1e655200828589303698600cecc953d62337e5848232f002322c3bf63369bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a1e655200828589303698600cecc953d62337e5848232f002322c3bf63369bb", kill_on_drop: false }` [INFO] [stdout] 0a1e655200828589303698600cecc953d62337e5848232f002322c3bf63369bb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d284b41ca274ded870ad618beb2fe6290a5c91a8840d1e82ba02eceb2773f65 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3d284b41ca274ded870ad618beb2fe6290a5c91a8840d1e82ba02eceb2773f65", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling beef v0.4.4 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking yansi-term v0.1.2 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking bytecount v0.6.2 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking bumpalo v3.6.1 [INFO] [stderr] Checking copyless v0.1.5 [INFO] [stderr] Checking index_vec v0.1.2 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking annotate-snippets v0.8.0 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking fern v0.6.0 [INFO] [stderr] Checking intrusive-collections v0.9.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling const-random-macro v0.1.13 [INFO] [stderr] Compiling syn v1.0.63 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking const-random v0.1.13 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Compiling logos-derive v0.11.5 [INFO] [stderr] Checking logos v0.11.4 [INFO] [stderr] Checking open-vaf v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/analysis/test.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::ir::ModuleId` [INFO] [stdout] --> src/ast_lowering/test.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::ir::ModuleId; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::ir::ModuleId` [INFO] [stdout] --> src/hir_lowering/test.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::ir::ModuleId; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::ir::ModuleId` [INFO] [stdout] --> src/parser/test.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use crate::ir::ModuleId; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/analysis/test.rs:20:32 [INFO] [stdout] | [INFO] [stdout] 20 | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/ast_lowering/test.rs:39:32 [INFO] [stdout] | [INFO] [stdout] 39 | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/parser/test.rs:244:32 [INFO] [stdout] | [INFO] [stdout] 244 | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/parser/test.rs:268:32 [INFO] [stdout] | [INFO] [stdout] 268 | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/parser/test.rs:294:32 [INFO] [stdout] | [INFO] [stdout] 294 | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/analysis/test.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | let mut control_dependencies = cfg.control_dependence_graph_from_ipdom(&ipdom); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_u32` [INFO] [stdout] --> src/symbol.rs:142:18 [INFO] [stdout] | [INFO] [stdout] 142 | pub const fn as_u32(self) -> u32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `partial_derivative_read_only` [INFO] [stdout] --> src/hir_lowering/derivatives/mod.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn partial_derivative_read_only( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `or_for_derivative` [INFO] [stdout] --> src/hir_lowering/derivatives/mod.rs:1697:12 [INFO] [stdout] | [INFO] [stdout] 1697 | pub fn or_for_derivative( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Result` [INFO] [stdout] --> src/hir_lowering/error.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | pub type Result = std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser/lexer.rs:468:13 [INFO] [stdout] | [INFO] [stdout] 468 | let mut res = Self { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_u32` [INFO] [stdout] --> src/symbol.rs:142:18 [INFO] [stdout] | [INFO] [stdout] 142 | pub const fn as_u32(self) -> u32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `partial_derivative_read_only` [INFO] [stdout] --> src/hir_lowering/derivatives/mod.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn partial_derivative_read_only( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `or_for_derivative` [INFO] [stdout] --> src/hir_lowering/derivatives/mod.rs:1697:12 [INFO] [stdout] | [INFO] [stdout] 1697 | pub fn or_for_derivative( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Result` [INFO] [stdout] --> src/hir_lowering/error.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | pub type Result = std::result::Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/analysis/test.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | / fern::Dispatch::new() [INFO] [stdout] 20 | | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] 21 | | .level(log::LevelFilter::Debug) [INFO] [stdout] 22 | | .chain(std::io::stderr()) [INFO] [stdout] 23 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ast_lowering/test.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | / fern::Dispatch::new() [INFO] [stdout] 22 | | .format(|out, message, _record| out.finish(*message)) [INFO] [stdout] 23 | | .level(log::LevelFilter::Info) [INFO] [stdout] 24 | | .chain(std::io::stderr()) [INFO] [stdout] 25 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/ast_lowering/test.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | / fern::Dispatch::new() [INFO] [stdout] 39 | | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] 40 | | .level(log::LevelFilter::Info) [INFO] [stdout] 41 | | .chain(std::io::stderr()) [INFO] [stdout] 42 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/hir_lowering/test.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | / fern::Dispatch::new() [INFO] [stdout] 22 | | .format(|out, message, _record| out.finish(*message)) [INFO] [stdout] 23 | | .level(log::LevelFilter::Info) [INFO] [stdout] 24 | | .chain(std::io::stderr()) [INFO] [stdout] 25 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/hir_lowering/test.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | / fern::Dispatch::new() [INFO] [stdout] 54 | | .format(|out, message, _| out.finish(*message)) [INFO] [stdout] 55 | | .level(log::LevelFilter::Info) [INFO] [stdout] 56 | | .chain(std::io::stderr()) [INFO] [stdout] 57 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/hir_lowering/test.rs:116:5 [INFO] [stdout] | [INFO] [stdout] 116 | / fern::Dispatch::new() [INFO] [stdout] 117 | | .format(|out, message, _| out.finish(*message)) [INFO] [stdout] 118 | | .level(log::LevelFilter::Info) [INFO] [stdout] 119 | | .chain(std::io::stderr()) [INFO] [stdout] 120 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/parser/test.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | / fern::Dispatch::new() [INFO] [stdout] 29 | | .format(|out, message, _| out.finish(*message)) [INFO] [stdout] 30 | | .level(log::LevelFilter::Info) [INFO] [stdout] 31 | | .chain(std::io::stderr()) [INFO] [stdout] 32 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/parser/test.rs:137:5 [INFO] [stdout] | [INFO] [stdout] 137 | / fern::Dispatch::new() [INFO] [stdout] 138 | | .format(|out, message, _| out.finish(*message)) [INFO] [stdout] 139 | | .level(log::LevelFilter::Info) [INFO] [stdout] 140 | | .chain(std::io::stderr()) [INFO] [stdout] 141 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/parser/test.rs:243:5 [INFO] [stdout] | [INFO] [stdout] 243 | / fern::Dispatch::new() [INFO] [stdout] 244 | | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] 245 | | .level(log::LevelFilter::Info) [INFO] [stdout] 246 | | .chain(std::io::stderr()) [INFO] [stdout] 247 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/parser/test.rs:267:5 [INFO] [stdout] | [INFO] [stdout] 267 | / fern::Dispatch::new() [INFO] [stdout] 268 | | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] 269 | | .level(log::LevelFilter::Info) [INFO] [stdout] 270 | | .chain(std::io::stderr()) [INFO] [stdout] 271 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/parser/test.rs:293:5 [INFO] [stdout] | [INFO] [stdout] 293 | / fern::Dispatch::new() [INFO] [stdout] 294 | | .format(|out, message, record| out.finish(*message)) [INFO] [stdout] 295 | | .level(log::LevelFilter::Info) [INFO] [stdout] 296 | | .chain(std::io::stderr()) [INFO] [stdout] 297 | | .apply(); [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 26 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 34.00s [INFO] running `Command { std: "docker" "inspect" "3d284b41ca274ded870ad618beb2fe6290a5c91a8840d1e82ba02eceb2773f65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d284b41ca274ded870ad618beb2fe6290a5c91a8840d1e82ba02eceb2773f65", kill_on_drop: false }` [INFO] [stdout] 3d284b41ca274ded870ad618beb2fe6290a5c91a8840d1e82ba02eceb2773f65