[INFO] cloning repository https://github.com/Arjun4522/krat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arjun4522/krat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbc76cdede125bcef7b0e8200bb1fec0bbafdb4f
[INFO] testing Arjun4522/krat against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Arjun4522/krat
[INFO] finished tweaking git repo https://github.com/Arjun4522/krat
[INFO] tweaked toml for git repo https://github.com/Arjun4522/krat written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Arjun4522/krat on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Arjun4522/krat 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b788cdd50624eb69ddff86d9ad345a670e4875e84eaea2195bd7529e1d775a14
[INFO] running `Command { std: "docker" "start" "-a" "b788cdd50624eb69ddff86d9ad345a670e4875e84eaea2195bd7529e1d775a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b788cdd50624eb69ddff86d9ad345a670e4875e84eaea2195bd7529e1d775a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b788cdd50624eb69ddff86d9ad345a670e4875e84eaea2195bd7529e1d775a14", kill_on_drop: false }`
[INFO] [stdout] b788cdd50624eb69ddff86d9ad345a670e4875e84eaea2195bd7529e1d775a14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad8e9eff7df79079a1d8bc25f52fb506072e8ed48b2b8b826046b271af065bcf
[INFO] running `Command { std: "docker" "start" "-a" "ad8e9eff7df79079a1d8bc25f52fb506072e8ed48b2b8b826046b271af065bcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling krat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/main.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{dup2, c_int};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |       let child = match unsafe { libc::fork() } {
[INFO] [stdout]    |  _________________-
[INFO] [stdout] 28 | |         -1 => {
[INFO] [stdout] 29 | |             eprintln!("Failed to fork");
[INFO] [stdout] 30 | |             exit(1);
[INFO] [stdout] ...  |
[INFO] [stdout] 43 | |         _ => exit(0),
[INFO] [stdout] 44 | |     };
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 45 |       
[INFO] [stdout] 46 |       let _ = child;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let child = match unsafe { libc::fork() } {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "ad8e9eff7df79079a1d8bc25f52fb506072e8ed48b2b8b826046b271af065bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8e9eff7df79079a1d8bc25f52fb506072e8ed48b2b8b826046b271af065bcf", kill_on_drop: false }`
[INFO] [stdout] ad8e9eff7df79079a1d8bc25f52fb506072e8ed48b2b8b826046b271af065bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76c9c658ae6eeaa8ddb997fa00e79c5431119a410aec8c8710137be4333ad8ff
[INFO] running `Command { std: "docker" "start" "-a" "76c9c658ae6eeaa8ddb997fa00e79c5431119a410aec8c8710137be4333ad8ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling krat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `c_int`
[INFO] [stdout]  --> src/main.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{dup2, c_int};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |       let child = match unsafe { libc::fork() } {
[INFO] [stdout]    |  _________________-
[INFO] [stdout] 28 | |         -1 => {
[INFO] [stdout] 29 | |             eprintln!("Failed to fork");
[INFO] [stdout] 30 | |             exit(1);
[INFO] [stdout] ...  |
[INFO] [stdout] 43 | |         _ => exit(0),
[INFO] [stdout] 44 | |     };
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 45 |       
[INFO] [stdout] 46 |       let _ = child;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let child = match unsafe { libc::fork() } {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "76c9c658ae6eeaa8ddb997fa00e79c5431119a410aec8c8710137be4333ad8ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c9c658ae6eeaa8ddb997fa00e79c5431119a410aec8c8710137be4333ad8ff", kill_on_drop: false }`
[INFO] [stdout] 76c9c658ae6eeaa8ddb997fa00e79c5431119a410aec8c8710137be4333ad8ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 087a327af898393553f279ec8786db35abb7956d5b4d862b88d07bd432fa13c3
[INFO] running `Command { std: "docker" "start" "-a" "087a327af898393553f279ec8786db35abb7956d5b4d862b88d07bd432fa13c3", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `c_int`
[INFO] [stderr]  --> src/main.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use libc::{dup2, c_int};
[INFO] [stderr]   |                  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |       let child = match unsafe { libc::fork() } {
[INFO] [stderr]    |  _________________-
[INFO] [stderr] 28 | |         -1 => {
[INFO] [stderr] 29 | |             eprintln!("Failed to fork");
[INFO] [stderr] 30 | |             exit(1);
[INFO] [stderr] ...  |
[INFO] [stderr] 43 | |         _ => exit(0),
[INFO] [stderr] 44 | |     };
[INFO] [stderr]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 45 |       
[INFO] [stderr] 46 |       let _ = child;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let child = match unsafe { libc::fork() } {
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `krat` (bin "krat" test) generated 3 warnings (run `cargo fix --bin "krat" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/krat-35245dd1ab5c75c9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "087a327af898393553f279ec8786db35abb7956d5b4d862b88d07bd432fa13c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087a327af898393553f279ec8786db35abb7956d5b4d862b88d07bd432fa13c3", kill_on_drop: false }`
[INFO] [stdout] 087a327af898393553f279ec8786db35abb7956d5b4d862b88d07bd432fa13c3
