[INFO] cloning repository https://github.com/ysf125/leg_off
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ysf125/leg_off" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fysf125%2Fleg_off", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fysf125%2Fleg_off'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22572d36a4cdfe7dfc304dae681e53cd38a64b57
[INFO] checking ysf125/leg_off against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fysf125%2Fleg_off" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ysf125/leg_off on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ysf125/leg_off
[INFO] finished tweaking git repo https://github.com/ysf125/leg_off
[INFO] tweaked toml for git repo https://github.com/ysf125/leg_off written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ysf125/leg_off 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af867011cd089c9ee91ef02e50ed388a51ecf30a34d2b7e3b5e50999a721eb76
[INFO] running `Command { std: "docker" "start" "-a" "af867011cd089c9ee91ef02e50ed388a51ecf30a34d2b7e3b5e50999a721eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af867011cd089c9ee91ef02e50ed388a51ecf30a34d2b7e3b5e50999a721eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af867011cd089c9ee91ef02e50ed388a51ecf30a34d2b7e3b5e50999a721eb76", kill_on_drop: false }`
[INFO] [stdout] af867011cd089c9ee91ef02e50ed388a51ecf30a34d2b7e3b5e50999a721eb76
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5a146d98f25245e7a1520f241c465fa3fd73d77b49431bfde1167ee2934fbac
[INFO] running `Command { std: "docker" "start" "-a" "b5a146d98f25245e7a1520f241c465fa3fd73d77b49431bfde1167ee2934fbac", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking h2 v0.3.25
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking leg_off v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/leg_off.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let mut body_bytes= body.to_vec();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/leg_off.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let mut body_bytes= body.to_vec();
[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: unused variable: `name`
[INFO] [stdout]   --> src/leg_off.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn add_library(name: &str) {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/leg_off.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn add_library(name: &str) {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_project` is never used
[INFO] [stdout]  --> src/leg_off.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn new_project(name: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_makefile` is never used
[INFO] [stdout]   --> src/leg_off.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn make_makefile(path: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_maincpp` is never used
[INFO] [stdout]   --> src/leg_off.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn make_maincpp(path: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_init` is never used
[INFO] [stdout]   --> src/leg_off.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn git_init(path: &str) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_include` is never used
[INFO] [stdout]   --> src/leg_off.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn new_include(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_include` is never used
[INFO] [stdout]   --> src/leg_off.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn remove_include(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_cpp` is never used
[INFO] [stdout]   --> src/leg_off.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn new_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_cpp` is never used
[INFO] [stdout]   --> src/leg_off.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn remove_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_project` is never used
[INFO] [stdout]  --> src/leg_off.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn new_project(name: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_dir` is never used
[INFO] [stdout]   --> src/leg_off.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn copy_dir(src: &str, dst: &str) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_makefile` is never used
[INFO] [stdout]   --> src/leg_off.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn make_makefile(path: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `download_file` is never used
[INFO] [stdout]   --> src/leg_off.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn download_file(url: &str, file_path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_library` is never used
[INFO] [stdout]   --> src/leg_off.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn add_library(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_maincpp` is never used
[INFO] [stdout]   --> src/leg_off.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn make_maincpp(path: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_var` is never used
[INFO] [stdout]  --> src/makefile.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn add_var(name: &str, value: &str) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `git_init` is never used
[INFO] [stdout]   --> src/leg_off.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn git_init(path: &str) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `edit_line` is never used
[INFO] [stdout]  --> src/makefile.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn edit_line(line_number: usize, edited_line: &str) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_cpp` is never used
[INFO] [stdout]   --> src/makefile.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn add_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_include` is never used
[INFO] [stdout]   --> src/leg_off.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn new_include(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_include` is never used
[INFO] [stdout]   --> src/leg_off.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn remove_include(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_cpp` is never used
[INFO] [stdout]   --> src/leg_off.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn new_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_cpp` is never used
[INFO] [stdout]   --> src/makefile.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn remove_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_cpp` is never used
[INFO] [stdout]   --> src/leg_off.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn remove_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_flags` is never used
[INFO] [stdout]   --> src/makefile.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn set_flags(flags: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_dir` is never used
[INFO] [stdout]   --> src/leg_off.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn copy_dir(src: &str, dst: &str) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `download_file` is never used
[INFO] [stdout]   --> src/leg_off.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn download_file(url: &str, file_path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_library` is never used
[INFO] [stdout]   --> src/leg_off.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn add_library(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_var` is never used
[INFO] [stdout]  --> src/makefile.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn add_var(name: &str, value: &str) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `edit_line` is never used
[INFO] [stdout]  --> src/makefile.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn edit_line(line_number: usize, edited_line: &str) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_cpp` is never used
[INFO] [stdout]   --> src/makefile.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn add_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_cpp` is never used
[INFO] [stdout]   --> src/makefile.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn remove_cpp(name: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_flags` is never used
[INFO] [stdout]   --> src/makefile.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn set_flags(flags: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "b5a146d98f25245e7a1520f241c465fa3fd73d77b49431bfde1167ee2934fbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a146d98f25245e7a1520f241c465fa3fd73d77b49431bfde1167ee2934fbac", kill_on_drop: false }`
[INFO] [stdout] b5a146d98f25245e7a1520f241c465fa3fd73d77b49431bfde1167ee2934fbac