[INFO] cloning repository https://github.com/toritoritori29/rashin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/toritoritori29/rashin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoritoritori29%2Frashin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoritoritori29%2Frashin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd6c699a0d4aa17660f3d10759c77ef5716f0132
[INFO] checking toritoritori29/rashin against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoritoritori29%2Frashin" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/toritoritori29/rashin 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/toritoritori29/rashin
[INFO] finished tweaking git repo https://github.com/toritoritori29/rashin
[INFO] tweaked toml for git repo https://github.com/toritoritori29/rashin written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/toritoritori29/rashin 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.3.17
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f04e1d6acddd9ab45f6fde2e66f2aa6d83e0a190d8cf78bbc8135722cff0bb3d
[INFO] running `Command { std: "docker" "start" "-a" "f04e1d6acddd9ab45f6fde2e66f2aa6d83e0a190d8cf78bbc8135722cff0bb3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f04e1d6acddd9ab45f6fde2e66f2aa6d83e0a190d8cf78bbc8135722cff0bb3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f04e1d6acddd9ab45f6fde2e66f2aa6d83e0a190d8cf78bbc8135722cff0bb3d", kill_on_drop: false }`
[INFO] [stdout] f04e1d6acddd9ab45f6fde2e66f2aa6d83e0a190d8cf78bbc8135722cff0bb3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9322be3cff28fed55ebfd8f24a52b7d700388372ed38a96213fc2b1b1f78db3b
[INFO] running `Command { std: "docker" "start" "-a" "9322be3cff28fed55ebfd8f24a52b7d700388372ed38a96213fc2b1b1f78db3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]     Checking thiserror v1.0.44
[INFO] [stderr]     Checking rashin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/http/parse_request_header.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Cursor, Read};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/system_utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/http/parse_request_header.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Cursor, Read};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/system_utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/core.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let size = match read_option {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]    --> src/http/parse_request_header.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     field: &mut Field,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]    --> src/http/parse_request_header.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 |     field: &mut Field,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `http_header`
[INFO] [stdout]    --> src/http/parse_request_header.rs:234:32
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn process_reserved_header(http_header: &mut HTTPHeader, field_name: &str, field_value: &str) {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_http_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]    --> src/http/parse_request_line.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 |     header: &mut HTTPHeader,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fd` is never read
[INFO] [stdout]   --> src/core.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Connection {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 37 |     pub fd: RawFd,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Connection` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field_size` and `fields` are never read
[INFO] [stdout]   --> src/http/http_interface.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | pub struct HTTPHeader {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub field_size: usize,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 11 |     pub fields: Vec<Field>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_field` is never used
[INFO] [stdout]   --> src/http/http_interface.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl HTTPHeader {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn add_field(&mut self, field: Field) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_end_lf` is never used
[INFO] [stdout]    --> src/http/parse_request_header.rs:212:4
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn parse_end_lf<T: AsRef<[u8]>>(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/core.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let size = match read_option {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]    --> src/http/parse_request_header.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 |     field: &mut Field,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]    --> src/http/parse_request_header.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 |     field: &mut Field,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `http_header`
[INFO] [stdout]    --> src/http/parse_request_header.rs:234:32
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn process_reserved_header(http_header: &mut HTTPHeader, field_name: &str, field_value: &str) {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_http_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]    --> src/http/parse_request_line.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 |     header: &mut HTTPHeader,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fd` is never read
[INFO] [stdout]   --> src/core.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Connection {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 37 |     pub fd: RawFd,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Connection` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field_size` and `fields` are never read
[INFO] [stdout]   --> src/http/http_interface.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | pub struct HTTPHeader {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub field_size: usize,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 11 |     pub fields: Vec<Field>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_field` is never used
[INFO] [stdout]   --> src/http/http_interface.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl HTTPHeader {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn add_field(&mut self, field: Field) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_end_lf` is never used
[INFO] [stdout]    --> src/http/parse_request_header.rs:212:4
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn parse_end_lf<T: AsRef<[u8]>>(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "9322be3cff28fed55ebfd8f24a52b7d700388372ed38a96213fc2b1b1f78db3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9322be3cff28fed55ebfd8f24a52b7d700388372ed38a96213fc2b1b1f78db3b", kill_on_drop: false }`
[INFO] [stdout] 9322be3cff28fed55ebfd8f24a52b7d700388372ed38a96213fc2b1b1f78db3b