[INFO] cloning repository https://github.com/leviathan88/safe_linked_lists_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leviathan88/safe_linked_lists_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fsafe_linked_lists_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fsafe_linked_lists_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e4ba717536e07f5a946d94325cd53edd6273138b [INFO] checking leviathan88/safe_linked_lists_rust against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fsafe_linked_lists_rust" "/workspace/builds/worker-93/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/leviathan88/safe_linked_lists_rust on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/leviathan88/safe_linked_lists_rust [INFO] finished tweaking git repo https://github.com/leviathan88/safe_linked_lists_rust [INFO] tweaked toml for git repo https://github.com/leviathan88/safe_linked_lists_rust written to /workspace/builds/worker-93/source/Cargo.toml [INFO] crate git repo https://github.com/leviathan88/safe_linked_lists_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d5d8c3332621f3f00edfde18c3bf8f3b673f5848d3a621b4aa638d8673b35b0 [INFO] running `Command { std: "docker" "start" "-a" "7d5d8c3332621f3f00edfde18c3bf8f3b673f5848d3a621b4aa638d8673b35b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d5d8c3332621f3f00edfde18c3bf8f3b673f5848d3a621b4aa638d8673b35b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d5d8c3332621f3f00edfde18c3bf8f3b673f5848d3a621b4aa638d8673b35b0", kill_on_drop: false }` [INFO] [stdout] 7d5d8c3332621f3f00edfde18c3bf8f3b673f5848d3a621b4aa638d8673b35b0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7c415f59cba71c0fbcaa78f07e431ba83b41dfc99b6957117813df81416c335a [INFO] running `Command { std: "docker" "start" "-a" "7c415f59cba71c0fbcaa78f07e431ba83b41dfc99b6957117813df81416c335a", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking linky_lists v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/main.rs from 2018 edition to 2021 [INFO] [stderr] Fixed src/lists/mod.rs (2 fixes) [INFO] [stderr] Fixed src/lists/node.rs (1 fix) [INFO] [stdout] warning: associated function is never used: `new_empty` [INFO] [stdout] --> src/lists/mod.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn new_empty() -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 50.46s [INFO] [stderr] Running `cargo check` to verify 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking linky_lists v0.1.0 (/tmp/fixit) [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node` [INFO] [stdout] --> src/lists/node.rs:74:20 [INFO] [stdout] | [INFO] [stdout] 74 | let node = Node::new("node_1".to_string()); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 73 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc` [INFO] [stdout] --> src/lists/node.rs:76:26 [INFO] [stdout] | [INFO] [stdout] 76 | assert_eq!(node, Rc::new(RefCell::new(Node { data: "node_1".to_string(), next: None}))); [INFO] [stdout] | ^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 73 | use crate::lists::Rc; [INFO] [stdout] | [INFO] [stdout] 73 | use std::rc::Rc; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RefCell` [INFO] [stdout] --> src/lists/node.rs:76:34 [INFO] [stdout] | [INFO] [stdout] 76 | assert_eq!(node, Rc::new(RefCell::new(Node { data: "node_1".to_string(), next: None}))); [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 73 | use core::cell::RefCell; [INFO] [stdout] | [INFO] [stdout] 73 | use crate::lists::node::RefCell; [INFO] [stdout] | [INFO] [stdout] 73 | use std::cell::RefCell; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Node` in this scope [INFO] [stdout] --> src/lists/node.rs:76:47 [INFO] [stdout] | [INFO] [stdout] 76 | assert_eq!(node, Rc::new(RefCell::new(Node { data: "node_1".to_string(), next: None}))); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] help: a variant with a similar name exists [INFO] [stdout] | [INFO] [stdout] 76 | assert_eq!(node, Rc::new(RefCell::new(None { data: "node_1".to_string(), next: None}))); [INFO] [stdout] | ~~~~ [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 73 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinkedList` [INFO] [stdout] --> src/lists/mod.rs:145:20 [INFO] [stdout] | [INFO] [stdout] 145 | let list = LinkedList::new_empty(); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `LinkedList` in this scope [INFO] [stdout] --> src/lists/mod.rs:147:26 [INFO] [stdout] | [INFO] [stdout] 147 | assert_eq!(list, LinkedList { [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinkedList` [INFO] [stdout] --> src/lists/mod.rs:156:20 [INFO] [stdout] | [INFO] [stdout] 156 | let list = LinkedList::new("node_1".to_string()); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `LinkedList` in this scope [INFO] [stdout] --> src/lists/mod.rs:158:26 [INFO] [stdout] | [INFO] [stdout] 158 | assert_eq!(list, LinkedList { [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node` [INFO] [stdout] --> src/lists/mod.rs:159:24 [INFO] [stdout] | [INFO] [stdout] 159 | head: Some(Node::new("node_1".to_string())), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node` [INFO] [stdout] --> src/lists/mod.rs:170:20 [INFO] [stdout] | [INFO] [stdout] 170 | let tail = Node::new(s.clone()); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Node` in this scope [INFO] [stdout] --> src/lists/mod.rs:172:20 [INFO] [stdout] | [INFO] [stdout] 172 | let head = Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] help: a variant with a similar name exists [INFO] [stdout] | [INFO] [stdout] 172 | let head = None { [INFO] [stdout] | ~~~~ [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc` [INFO] [stdout] --> src/lists/mod.rs:174:24 [INFO] [stdout] | [INFO] [stdout] 174 | next: Some(Rc::clone(&tail)) [INFO] [stdout] | ^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Rc; [INFO] [stdout] | [INFO] [stdout] 144 | use std::rc::Rc; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `LinkedList` in this scope [INFO] [stdout] --> src/lists/mod.rs:177:20 [INFO] [stdout] | [INFO] [stdout] 177 | let list = LinkedList { [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc` [INFO] [stdout] --> src/lists/mod.rs:178:24 [INFO] [stdout] | [INFO] [stdout] 178 | head: Some(Rc::new(RefCell::new(head))), [INFO] [stdout] | ^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Rc; [INFO] [stdout] | [INFO] [stdout] 144 | use std::rc::Rc; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RefCell` [INFO] [stdout] --> src/lists/mod.rs:178:32 [INFO] [stdout] | [INFO] [stdout] 178 | head: Some(Rc::new(RefCell::new(head))), [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use core::cell::RefCell; [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::node::RefCell; [INFO] [stdout] | [INFO] [stdout] 144 | use std::cell::RefCell; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinkedList` [INFO] [stdout] --> src/lists/mod.rs:184:26 [INFO] [stdout] | [INFO] [stdout] 184 | let mut l_list = LinkedList::new_empty(); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node` [INFO] [stdout] --> src/lists/mod.rs:196:20 [INFO] [stdout] | [INFO] [stdout] 196 | let tail = Node::new(c.clone()); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Node` in this scope [INFO] [stdout] --> src/lists/mod.rs:198:20 [INFO] [stdout] | [INFO] [stdout] 198 | let head = Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] help: a variant with a similar name exists [INFO] [stdout] | [INFO] [stdout] 198 | let head = None { [INFO] [stdout] | ~~~~ [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc` [INFO] [stdout] --> src/lists/mod.rs:200:24 [INFO] [stdout] | [INFO] [stdout] 200 | next: Some(Rc::clone(&tail)) [INFO] [stdout] | ^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Rc; [INFO] [stdout] | [INFO] [stdout] 144 | use std::rc::Rc; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `LinkedList` in this scope [INFO] [stdout] --> src/lists/mod.rs:203:20 [INFO] [stdout] | [INFO] [stdout] 203 | let list = LinkedList { [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc` [INFO] [stdout] --> src/lists/mod.rs:204:24 [INFO] [stdout] | [INFO] [stdout] 204 | head: Some(Rc::new(RefCell::new(head))), [INFO] [stdout] | ^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::Rc; [INFO] [stdout] | [INFO] [stdout] 144 | use std::rc::Rc; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RefCell` [INFO] [stdout] --> src/lists/mod.rs:204:32 [INFO] [stdout] | [INFO] [stdout] 204 | head: Some(Rc::new(RefCell::new(head))), [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use core::cell::RefCell; [INFO] [stdout] | [INFO] [stdout] 144 | use crate::lists::node::RefCell; [INFO] [stdout] | [INFO] [stdout] 144 | use std::cell::RefCell; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinkedList` [INFO] [stdout] --> src/lists/mod.rs:210:26 [INFO] [stdout] | [INFO] [stdout] 210 | let mut l_list = LinkedList::new_empty(); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinkedList` [INFO] [stdout] --> src/lists/mod.rs:219:24 [INFO] [stdout] | [INFO] [stdout] 219 | let mut list = LinkedList::new("node_1".to_string()); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LinkedList` [INFO] [stdout] --> src/lists/mod.rs:226:24 [INFO] [stdout] | [INFO] [stdout] 226 | let mut list = LinkedList::new("node_1".to_string()); [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 144 | use crate::LinkedList; [INFO] [stdout] | [INFO] [stdout] 144 | use std::collections::LinkedList; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_empty` [INFO] [stdout] --> src/lists/mod.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn new_empty() -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 25 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0422, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0422`. [INFO] [stdout] [INFO] [stderr] error: could not compile `linky_lists` due to 26 previous errors [INFO] [stderr] error: failed to check after updating to 2021 [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "7c415f59cba71c0fbcaa78f07e431ba83b41dfc99b6957117813df81416c335a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c415f59cba71c0fbcaa78f07e431ba83b41dfc99b6957117813df81416c335a", kill_on_drop: false }` [INFO] [stdout] 7c415f59cba71c0fbcaa78f07e431ba83b41dfc99b6957117813df81416c335a