[INFO] cloning repository https://github.com/yew1eb/rustlab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yew1eb/rustlab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyew1eb%2Frustlab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyew1eb%2Frustlab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ccf8588ba87d3ef5505dfdf8ef1bf9c93fa192e
[INFO] checking yew1eb/rustlab against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyew1eb%2Frustlab" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yew1eb/rustlab 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/yew1eb/rustlab
[INFO] finished tweaking git repo https://github.com/yew1eb/rustlab
[INFO] tweaked toml for git repo https://github.com/yew1eb/rustlab written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/yew1eb/rustlab 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] 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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cfb3ef89f8b97a19e7a5a306173fede675b2ba9bddc80431ae29880dcb47918d
[INFO] running `Command { std: "docker" "start" "-a" "cfb3ef89f8b97a19e7a5a306173fede675b2ba9bddc80431ae29880dcb47918d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfb3ef89f8b97a19e7a5a306173fede675b2ba9bddc80431ae29880dcb47918d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb3ef89f8b97a19e7a5a306173fede675b2ba9bddc80431ae29880dcb47918d", kill_on_drop: false }`
[INFO] [stdout] cfb3ef89f8b97a19e7a5a306173fede675b2ba9bddc80431ae29880dcb47918d
[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" "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] a7edd353eb51bdb94e61b3dffc99de60ff1082717e8b18ec82b892265ef685cb
[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" "a7edd353eb51bdb94e61b3dffc99de60ff1082717e8b18ec82b892265ef685cb", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   memchr v2.4.0: use_std
[INFO] [stderr]   memchr v2.4.0 (as host dependency): default
[INFO] [stderr]   regex v1.5.3 (as host dependency): aho-corasick, default, memchr, perf, perf-cache, perf-dfa, perf-inline, perf-literal
[INFO] [stderr]   regex-syntax v0.6.25 (as host dependency): default
[INFO] [stderr]   standback v0.2.11 (as host dependency): std
[INFO] [stderr]   tokio v0.2.22: winapi
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking mylib v0.1.0 (/tmp/fixit/example-projects/trpl-webserver/mylib)
[INFO] [stderr]    Migrating example-projects/trpl-webserver/mylib/src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Checking rustlab v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]  --> example-projects/trpl-webserver/mylib/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]  --> example-projects/trpl-webserver/mylib/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     id: usize,
[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]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]     Checking tinyvec v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]     Checking trpl-webserver v0.1.0 (/tmp/fixit/example-projects/trpl-webserver)
[INFO] [stderr]    Migrating example-projects/trpl-webserver/src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.4
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.3
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]     Checking basic-exercises v0.1.0 (/tmp/fixit/basic-exercises)
[INFO] [stderr]    Migrating basic-exercises/src/main.rs from 2018 edition to 2021
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]        Fixed basic-exercises/src/std_misc_channels_base.rs (3 fixes)
[INFO] [stderr]        Fixed basic-exercises/src/std_misc_io_fs_base.rs (2 fixes)
[INFO] [stderr]        Fixed basic-exercises/src/closure_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/std_hashmap_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/std_misc_path_file_base.rs (4 fixes)
[INFO] [stderr]        Fixed basic-exercises/src/std_misc_env_arg_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/std_misc_process_base.rs (3 fixes)
[INFO] [stderr]        Fixed basic-exercises/src/std_result_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/std_hashset_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/std_box_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/std_misc_threads_base.rs (1 fix)
[INFO] [stderr]        Fixed basic-exercises/src/destructuring_base.rs (2 fixes)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> basic-exercises/src/macros_base.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / macro_rules! say_hello {
[INFO] [stdout] 2 | |     // `()` 表示此宏不接受任何参数。
[INFO] [stdout] 3 | |     () => {
[INFO] [stdout] 4 | |         // 此宏将会展开成这个代码块里面的内容。
[INFO] [stdout] 5 | |         println!("Hello!");
[INFO] [stdout] 6 | |     };
[INFO] [stdout] 7 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> basic-exercises/src/macros_base.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | / macro_rules! print_result {
[INFO] [stdout] 27 | |     // 此宏接受一个 `expr` 类型的表达式，将它转换成一个字符串，
[INFO] [stdout] 28 | |     // 并伴随着表达式的结果。
[INFO] [stdout] 29 | |     // `expr` 指示符用于表达式。
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     };
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> basic-exercises/src/macros_base.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | / macro_rules! test {
[INFO] [stdout] 40 | |     // 参数不需要使用逗号隔开。
[INFO] [stdout] 41 | |     // 可以使用任意模板（原文：Any template can be used!）！
[INFO] [stdout] 42 | |     ($left:expr; and $right:expr) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | |     };
[INFO] [stdout] 59 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> basic-exercises/src/macros_base.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / macro_rules! find_min {
[INFO] [stdout] 63 | |     // 基本情形：
[INFO] [stdout] 64 | |     ($x:expr) => ($x);
[INFO] [stdout] 65 | |     // `$x` 后面跟着至少一个 `$y,`
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |     )
[INFO] [stdout] 70 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mem`
[INFO] [stdout]   --> basic-exercises/src/std_box_base.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             mem::size_of_val(&point)
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mem`
[INFO] [stdout]   --> basic-exercises/src/std_box_base.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             mem::size_of_val(&rectangle)
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mem`
[INFO] [stdout]   --> basic-exercises/src/std_box_base.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |             mem::size_of_val(&boxed_point)
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mem`
[INFO] [stdout]   --> basic-exercises/src/std_box_base.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |             mem::size_of_val(&boxed_rectangle)
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mem`
[INFO] [stdout]   --> basic-exercises/src/std_box_base.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             mem::size_of_val(&box_in_a_box)
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mem`
[INFO] [stdout]   --> basic-exercises/src/std_box_base.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             mem::size_of_val(&unboxed_point)
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mpsc`
[INFO] [stdout]   --> basic-exercises/src/std_misc_channels_base.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let (tx, rx) = mpsc::channel::<i32>();
[INFO] [stdout]    |                        ^^^^ use of undeclared crate or module `mpsc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]   --> basic-exercises/src/std_misc_channels_base.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fs`
[INFO] [stdout]   --> basic-exercises/src/std_misc_io_fs_base.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |         match fs::create_dir("a") {
[INFO] [stdout]    |               ^^ use of undeclared crate or module `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fs`
[INFO] [stdout]   --> basic-exercises/src/std_misc_io_fs_base.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         fs::create_dir_all("a/c/d").unwrap_or_else(|why| {
[INFO] [stdout]    |         ^^ use of undeclared crate or module `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `unix`
[INFO] [stdout]   --> basic-exercises/src/std_misc_io_fs_base.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |             unix::fs::symlink("../b.txt", "a/c/b.txt").unwrap_or_else(|why| {
[INFO] [stdout]    |             ^^^^ use of undeclared crate or module `unix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fs`
[INFO] [stdout]   --> basic-exercises/src/std_misc_io_fs_base.rs:77:15
[INFO] [stdout]    |
[INFO] [stdout] 77 |         match fs::read_dir("a") {
[INFO] [stdout]    |               ^^ use of undeclared crate or module `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fs`
[INFO] [stdout]   --> basic-exercises/src/std_misc_io_fs_base.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         fs::remove_file("a/c/e.txt").unwrap_or_else(|why| {
[INFO] [stdout]    |         ^^ use of undeclared crate or module `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fs`
[INFO] [stdout]   --> basic-exercises/src/std_misc_io_fs_base.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         fs::remove_dir("a/c/d").unwrap_or_else(|why| {
[INFO] [stdout]    |         ^^ use of undeclared crate or module `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]   --> basic-exercises/src/std_misc_threads_base.rs:17:27
[INFO] [stdout]    |
[INFO] [stdout] 17 |             childern.push(thread::spawn(move || {
[INFO] [stdout]    |                           ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]   --> basic-exercises/src/std_hashmap_base.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut contacts = HashMap::new();
[INFO] [stdout]    |                            ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::closure_base::test::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HashMap` in this scope
[INFO] [stdout]   --> basic-exercises/src/std_hashmap_base.rs:59:25
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut scores: HashMap<String, i32> = HashMap::new();
[INFO] [stdout]    |                         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::closure_base::test::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]   --> basic-exercises/src/std_hashmap_base.rs:59:48
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut scores: HashMap<String, i32> = HashMap::new();
[INFO] [stdout]    |                                                ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::closure_base::test::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HashMap` in this scope
[INFO] [stdout]   --> basic-exercises/src/std_hashmap_base.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let scores: HashMap<_, _> = keys.iter().zip(values.iter()).collect();
[INFO] [stdout]    |                     ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::closure_base::test::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]   --> basic-exercises/src/std_hashmap_base.rs:72:23
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut ss1 = HashMap::new();
[INFO] [stdout]    |                       ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::closure_base::test::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]   --> basic-exercises/src/std_hashmap_base.rs:83:23
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let mut map = HashMap::new();
[INFO] [stdout]    |                       ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::closure_base::test::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]    --> basic-exercises/src/std_hashmap_base.rs:102:32
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let mut book_hashmap = HashMap::new();
[INFO] [stdout]     |                                ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 19  |     use crate::closure_base::test::HashMap;
[INFO] [stdout]     |
[INFO] [stdout] 19  |     use std::collections::HashMap;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HashMap` in this scope
[INFO] [stdout]    --> basic-exercises/src/std_hashmap_base.rs:114:31
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut book_reviews: HashMap<String, String> = HashMap::new();
[INFO] [stdout]     |                               ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 19  |     use crate::closure_base::test::HashMap;
[INFO] [stdout]     |
[INFO] [stdout] 19  |     use std::collections::HashMap;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]    --> basic-exercises/src/std_hashmap_base.rs:114:57
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut book_reviews: HashMap<String, String> = HashMap::new();
[INFO] [stdout]     |                                                         ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 19  |     use crate::closure_base::test::HashMap;
[INFO] [stdout]     |
[INFO] [stdout] 19  |     use std::collections::HashMap;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HashSet` in this scope
[INFO] [stdout]  --> basic-exercises/src/std_hashset_base.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut a: HashSet<i32> = vec![1i32, 2, 3].into_iter().collect();
[INFO] [stdout]   |                    ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use std::collections::HashSet;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HashSet` in this scope
[INFO] [stdout]   --> basic-exercises/src/std_hashset_base.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut b: HashSet<i32> = vec![2i32, 3, 4].into_iter().collect();
[INFO] [stdout]    |                    ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  |     use std::collections::HashSet;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashSet`
[INFO] [stdout]   --> basic-exercises/src/std_hashset_base.rs:55:34
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut number_hashset = HashSet::new();
[INFO] [stdout]    |                                  ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  |     use std::collections::HashSet;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> basic-exercises/src/std_misc_path_file_base.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let path = Path::new(".");
[INFO] [stdout]    |                    ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use crate::std_misc_io_fs_base::Path;
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> basic-exercises/src/std_misc_path_file_base.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let path = Path::new("./hello.txt");
[INFO] [stdout]    |                    ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use crate::std_misc_io_fs_base::Path;
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]   --> basic-exercises/src/std_misc_path_file_base.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut file = match File::open(&path) {
[INFO] [stdout]    |                              ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use crate::std_misc_io_fs_base::File;
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use std::fs::File;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> basic-exercises/src/std_misc_path_file_base.rs:67:20
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let path = Path::new("hello.txt");
[INFO] [stdout]    |                    ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use crate::std_misc_io_fs_base::Path;
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]   --> basic-exercises/src/std_misc_path_file_base.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut file = match File::create(&path) {
[INFO] [stdout]    |                              ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use crate::std_misc_io_fs_base::File;
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use std::fs::File;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Command`
[INFO] [stdout]   --> basic-exercises/src/std_misc_process_base.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let output = Command::new("rustc")
[INFO] [stdout]    |                      ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 7  |     use std::process::Command;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Command`
[INFO] [stdout]   --> basic-exercises/src/std_misc_process_base.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let process = match Command::new("wc")
[INFO] [stdout]    |                             ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 7  |     use std::process::Command;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Stdio`
[INFO] [stdout]   --> basic-exercises/src/std_misc_process_base.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 |             .stdin(Stdio::piped())
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 7  |     use std::process::Stdio;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Stdio`
[INFO] [stdout]   --> basic-exercises/src/std_misc_process_base.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |             .stdout(Stdio::piped())
[INFO] [stdout]    |                     ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 7  |     use std::process::Stdio;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Command`
[INFO] [stdout]   --> basic-exercises/src/std_misc_process_base.rs:66:25
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut child = Command::new("sleep").arg("5").spawn().unwrap();
[INFO] [stdout]    |                         ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 7  |     use std::process::Command;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> basic-exercises/src/basic_type.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> basic-exercises/src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(unused_imports)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> basic-exercises/src/collection_types.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> basic-exercises/src/loops.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 'second_loop: loop {
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> basic-exercises/src/macros_base.rs:5:27
[INFO] [stdout]    |
[INFO] [stdout] 5  |         println!("Hello!");
[INFO] [stdout]    |                           ^
[INFO] [stdout] ...
[INFO] [stdout] 78 |         say_hello!()
[INFO] [stdout]    |         ------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stdout]    = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> basic-exercises/src/std_hashset_base.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> basic-exercises/src/std_misc_path_file_base.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> basic-exercises/src/std_misc_process_base.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> basic-exercises/src/std_vector_base.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> basic-exercises/src/struct_base.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |         struct A {};
[INFO] [stdout]    |                    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 37 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `basic-exercises` due to 38 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "a7edd353eb51bdb94e61b3dffc99de60ff1082717e8b18ec82b892265ef685cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7edd353eb51bdb94e61b3dffc99de60ff1082717e8b18ec82b892265ef685cb", kill_on_drop: false }`
[INFO] [stdout] a7edd353eb51bdb94e61b3dffc99de60ff1082717e8b18ec82b892265ef685cb