[INFO] cloning repository https://github.com/mh-alahdadian/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mh-alahdadian/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmh-alahdadian%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmh-alahdadian%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5358a56d34c6143fe534467e5122dfc18035ff93
[INFO] checking mh-alahdadian/rust-learn against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmh-alahdadian%2Frust-learn" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mh-alahdadian/rust-learn
[INFO] finished tweaking git repo https://github.com/mh-alahdadian/rust-learn
[INFO] tweaked toml for git repo https://github.com/mh-alahdadian/rust-learn written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mh-alahdadian/rust-learn on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mh-alahdadian/rust-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.8
[INFO] [stderr]   Downloaded backtrace v0.3.64
[INFO] [stderr]   Downloaded gloo-timers v0.2.3
[INFO] [stderr]   Downloaded blocking v1.1.0
[INFO] [stderr]   Downloaded async-global-executor v2.0.3
[INFO] [stderr]   Downloaded ctor v0.1.21
[INFO] [stderr]   Downloaded async-std v1.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea2578e2048630257dbb67e5dbf0ca9f5d978ebe923975f90235d907904b1878
[INFO] running `Command { std: "docker" "start" "-a" "ea2578e2048630257dbb67e5dbf0ca9f5d978ebe923975f90235d907904b1878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea2578e2048630257dbb67e5dbf0ca9f5d978ebe923975f90235d907904b1878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea2578e2048630257dbb67e5dbf0ca9f5d978ebe923975f90235d907904b1878", kill_on_drop: false }`
[INFO] [stdout] ea2578e2048630257dbb67e5dbf0ca9f5d978ebe923975f90235d907904b1878
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b33ffc1208ea8a638c5a5a4a10670d705f505e0af9d398071ce3039a42cbbd32
[INFO] running `Command { std: "docker" "start" "-a" "b33ffc1208ea8a638c5a5a4a10670d705f505e0af9d398071ce3039a42cbbd32", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking async-task v4.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking blocking v1.1.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking futures-util v0.3.21
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.3
[INFO] [stderr]     Checking async-std v1.10.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: identifier contains an uncommon character: 'ـ'
[INFO] [stdout]   --> tests/post.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ـ => "",
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this character is included in the Unicode general security profile
[INFO] [stdout]    = note: `#[warn(uncommon_codepoints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ـ`
[INFO] [stdout]   --> tests/post.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ـ => "",
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_ـ`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]   --> tests/impls.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct A {}
[INFO] [stdout]    |            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Page1` should have a snake case name
[INFO] [stdout]   --> tests/impls.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | mod Page1 {
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to snake case: `page1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Page2` should have a snake case name
[INFO] [stdout]   --> tests/impls.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | mod Page2 {
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to snake case: `page2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests/var_refs.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |         for (i, &item) in bytes.iter().enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]   --> tests/var_refs.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         s = &mut String::from("world2");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> tests/var_refs.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let x = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> tests/var_refs.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let x: &str = &**m;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> tests/var_refs.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let x: &str = &*m;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word2` is never used
[INFO] [stdout]   --> tests/var_refs.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn first_word2<'a, 'b>(s: &'a String) -> &'a str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `Command { std: "docker" "inspect" "b33ffc1208ea8a638c5a5a4a10670d705f505e0af9d398071ce3039a42cbbd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b33ffc1208ea8a638c5a5a4a10670d705f505e0af9d398071ce3039a42cbbd32", kill_on_drop: false }`
[INFO] [stdout] b33ffc1208ea8a638c5a5a4a10670d705f505e0af9d398071ce3039a42cbbd32
