[INFO] crate movine 0.1.2 is already in cache [INFO] extracting crate movine 0.1.2 into work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/movine/0.1.2 [INFO] extracting crate movine 0.1.2 into work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/movine/0.1.2 [INFO] validating manifest of movine-0.1.2 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of movine-0.1.2 on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing movine-0.1.2 [INFO] finished frobbing movine-0.1.2 [INFO] frobbed toml for movine-0.1.2 written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/movine/0.1.2/Cargo.toml [INFO] started frobbing movine-0.1.2 [INFO] finished frobbing movine-0.1.2 [INFO] frobbed toml for movine-0.1.2 written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/movine/0.1.2/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking movine-0.1.2 against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-5/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/movine/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] aac2aa58926c135e4bf778deaa7479bbe13ec9f034b8544181b04d8923b8f92a [INFO] running `"docker" "start" "-a" "aac2aa58926c135e4bf778deaa7479bbe13ec9f034b8544181b04d8923b8f92a"` [INFO] [stderr] Compiling structopt-derive v0.2.15 [INFO] [stderr] Checking structopt v0.2.15 [INFO] [stderr] Checking movine v0.1.2 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Migration` [INFO] [stderr] --> src/db.rs:2:37 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::migration::{DbMigration, Migration, MigrationOp, MigrationPlan}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `ErrorKind` [INFO] [stderr] --> src/local.rs:6:15 [INFO] [stderr] | [INFO] [stderr] 6 | use std::io::{ErrorKind, Read, Result, Write}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `migration::Migration` [INFO] [stderr] --> src/main.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | use migration::Migration; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Migration` [INFO] [stderr] --> src/db.rs:2:37 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::migration::{DbMigration, Migration, MigrationOp, MigrationPlan}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `ErrorKind` [INFO] [stderr] --> src/local.rs:6:15 [INFO] [stderr] | [INFO] [stderr] 6 | use std::io::{ErrorKind, Read, Result, Write}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `migration::Migration` [INFO] [stderr] --> src/main.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | use migration::Migration; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/plan_builder.rs:178:25 [INFO] [stderr] | [INFO] [stderr] 178 | _ => () [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unreachable_patterns)] on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/plan_builder.rs:196:13 [INFO] [stderr] | [INFO] [stderr] 196 | _ => MigrationPlan::new(), [INFO] [stderr] | ^ [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/plan_builder.rs:178:25 [INFO] [stderr] | [INFO] [stderr] 178 | _ => () [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unreachable_patterns)] on by default [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/plan_builder.rs:196:13 [INFO] [stderr] | [INFO] [stderr] 196 | _ => MigrationPlan::new(), [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/local.rs:48:13 [INFO] [stderr] | [INFO] [stderr] 48 | let name = self.create_initial_migration_folder()?; [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `m2` [INFO] [stderr] --> src/plan_builder.rs:92:54 [INFO] [stderr] | [INFO] [stderr] 92 | MigrationStatus::Variant(m1, m2) => { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_m2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/local.rs:48:13 [INFO] [stderr] | [INFO] [stderr] 48 | let name = self.create_initial_migration_folder()?; [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let mut db_exec = DBExecutor::new(config.connection); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `m2` [INFO] [stderr] --> src/plan_builder.rs:92:54 [INFO] [stderr] | [INFO] [stderr] 92 | MigrationStatus::Variant(m1, m2) => { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_m2` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn run(mut local: LocalMigrations, mut db_exec: DBExecutor) -> Result<(), Error> { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:44:17 [INFO] [stderr] | [INFO] [stderr] 44 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:60:17 [INFO] [stderr] | [INFO] [stderr] 60 | let mut local_migrations = local [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:63:17 [INFO] [stderr] | [INFO] [stderr] 63 | let mut db_migrations = db_exec.load_migrations(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:64:17 [INFO] [stderr] | [INFO] [stderr] 64 | let mut status = if let Ok(db_migrations) = db_migrations { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:82:17 [INFO] [stderr] | [INFO] [stderr] 82 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:83:17 [INFO] [stderr] | [INFO] [stderr] 83 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:85:17 [INFO] [stderr] | [INFO] [stderr] 85 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:104:17 [INFO] [stderr] | [INFO] [stderr] 104 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 105 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:122:17 [INFO] [stderr] | [INFO] [stderr] 122 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:123:17 [INFO] [stderr] | [INFO] [stderr] 123 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:125:17 [INFO] [stderr] | [INFO] [stderr] 125 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:140:17 [INFO] [stderr] | [INFO] [stderr] 140 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:141:17 [INFO] [stderr] | [INFO] [stderr] 141 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:143:17 [INFO] [stderr] | [INFO] [stderr] 143 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let mut db_exec = DBExecutor::new(config.connection); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn run(mut local: LocalMigrations, mut db_exec: DBExecutor) -> Result<(), Error> { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:44:17 [INFO] [stderr] | [INFO] [stderr] 44 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:60:17 [INFO] [stderr] | [INFO] [stderr] 60 | let mut local_migrations = local [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:63:17 [INFO] [stderr] | [INFO] [stderr] 63 | let mut db_migrations = db_exec.load_migrations(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:64:17 [INFO] [stderr] | [INFO] [stderr] 64 | let mut status = if let Ok(db_migrations) = db_migrations { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:82:17 [INFO] [stderr] | [INFO] [stderr] 82 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:83:17 [INFO] [stderr] | [INFO] [stderr] 83 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:85:17 [INFO] [stderr] | [INFO] [stderr] 85 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:104:17 [INFO] [stderr] | [INFO] [stderr] 104 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 105 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:122:17 [INFO] [stderr] | [INFO] [stderr] 122 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:123:17 [INFO] [stderr] | [INFO] [stderr] 123 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:125:17 [INFO] [stderr] | [INFO] [stderr] 125 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:140:17 [INFO] [stderr] | [INFO] [stderr] 140 | let mut local_migrations = local.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:141:17 [INFO] [stderr] | [INFO] [stderr] 141 | let mut db_migrations = db_exec.load_migrations().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:143:17 [INFO] [stderr] | [INFO] [stderr] 143 | let mut plan = PlanBuilder::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Custom` [INFO] [stderr] --> src/plan_builder.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | Custom, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/view.rs:33:9 [INFO] [stderr] | [INFO] [stderr] 33 | writeln!(handle, "Nothing to do."); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Custom` [INFO] [stderr] --> src/plan_builder.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | Custom, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/view.rs:33:9 [INFO] [stderr] | [INFO] [stderr] 33 | writeln!(handle, "Nothing to do."); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.70s [INFO] running `"docker" "inspect" "aac2aa58926c135e4bf778deaa7479bbe13ec9f034b8544181b04d8923b8f92a"` [INFO] running `"docker" "rm" "-f" "aac2aa58926c135e4bf778deaa7479bbe13ec9f034b8544181b04d8923b8f92a"` [INFO] [stdout] aac2aa58926c135e4bf778deaa7479bbe13ec9f034b8544181b04d8923b8f92a