[INFO] cloning repository https://github.com/kaifastromai/cs-os-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaifastromai/cs-os-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaifastromai%2Fcs-os-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaifastromai%2Fcs-os-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d4e8a3b7d65a25289f0f3f9ea63b7f6bdb62df7
[INFO] testing kaifastromai/cs-os-rust against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaifastromai%2Fcs-os-rust" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kaifastromai/cs-os-rust on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kaifastromai/cs-os-rust
[INFO] finished tweaking git repo https://github.com/kaifastromai/cs-os-rust
[INFO] tweaked toml for git repo https://github.com/kaifastromai/cs-os-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/kaifastromai/cs-os-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 6b69b20c157f4569144f3ac7ccae4f3a1c9d410f84a1be658ab7a4d369bb8bdb
[INFO] running `Command { std: "docker" "start" "-a" "6b69b20c157f4569144f3ac7ccae4f3a1c9d410f84a1be658ab7a4d369bb8bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b69b20c157f4569144f3ac7ccae4f3a1c9d410f84a1be658ab7a4d369bb8bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b69b20c157f4569144f3ac7ccae4f3a1c9d410f84a1be658ab7a4d369bb8bdb", kill_on_drop: false }`
[INFO] [stdout] 6b69b20c157f4569144f3ac7ccae4f3a1c9d410f84a1be658ab7a4d369bb8bdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76f2613ca7cfcbf341c9fb9c49a66ef9b0dcb771feac8601e5e85e0ccfa0a9d1
[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" "76f2613ca7cfcbf341c9fb9c49a66ef9b0dcb771feac8601e5e85e0ccfa0a9d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling cs-operating-systems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ffi::{CStr, CString};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `unistd::chdir`
[INFO] [stdout]  --> src/main.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use nix::{fcntl::OFlag, sys::stat::Mode, unistd::chdir};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sys::wait::WaitPidFlag`, `unistd::close`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use nix::{sys::wait::WaitPidFlag, sys::wait::WaitStatus, unistd::close};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::BufRead`
[INFO] [stdout]  --> src/main.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{ffi, io::BufRead};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:146:16
[INFO] [stdout]     |
[INFO] [stdout] 146 |             if (matches.opt_present("exec2")) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let prog = env_args[0].clone();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `DEV`
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | static DEV: bool = true;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.62s
[INFO] running `Command { std: "docker" "inspect" "76f2613ca7cfcbf341c9fb9c49a66ef9b0dcb771feac8601e5e85e0ccfa0a9d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f2613ca7cfcbf341c9fb9c49a66ef9b0dcb771feac8601e5e85e0ccfa0a9d1", kill_on_drop: false }`
[INFO] [stdout] 76f2613ca7cfcbf341c9fb9c49a66ef9b0dcb771feac8601e5e85e0ccfa0a9d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", 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] 0165ec2087cddba22e0e9f3a19e982e58262b4c22451e36cd57b454583bab60a
[INFO] running `Command { std: "docker" "start" "-a" "0165ec2087cddba22e0e9f3a19e982e58262b4c22451e36cd57b454583bab60a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cs-operating-systems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ffi::{CStr, CString};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `unistd::chdir`
[INFO] [stdout]  --> src/main.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use nix::{fcntl::OFlag, sys::stat::Mode, unistd::chdir};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sys::wait::WaitPidFlag`, `unistd::close`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use nix::{sys::wait::WaitPidFlag, sys::wait::WaitStatus, unistd::close};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::BufRead`
[INFO] [stdout]  --> src/main.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{ffi, io::BufRead};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:146:16
[INFO] [stdout]     |
[INFO] [stdout] 146 |             if (matches.opt_present("exec2")) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let prog = env_args[0].clone();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `DEV`
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | static DEV: bool = true;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0165ec2087cddba22e0e9f3a19e982e58262b4c22451e36cd57b454583bab60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0165ec2087cddba22e0e9f3a19e982e58262b4c22451e36cd57b454583bab60a", kill_on_drop: false }`
[INFO] [stdout] 0165ec2087cddba22e0e9f3a19e982e58262b4c22451e36cd57b454583bab60a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 67c0d528e2625750b15e2e93856aae67db64cb3bdfcd2e23379c58a6843546d5
[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" "67c0d528e2625750b15e2e93856aae67db64cb3bdfcd2e23379c58a6843546d5", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `CStr`
[INFO] [stderr]  --> src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ffi::{CStr, CString};
[INFO] [stderr]   |           ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `unistd::chdir`
[INFO] [stderr]  --> src/main.rs:5:42
[INFO] [stderr]   |
[INFO] [stderr] 5 | use nix::{fcntl::OFlag, sys::stat::Mode, unistd::chdir};
[INFO] [stderr]   |                                          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `sys::wait::WaitPidFlag`, `unistd::close`
[INFO] [stderr]  --> src/main.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | use nix::{sys::wait::WaitPidFlag, sys::wait::WaitStatus, unistd::close};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^^^                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io::BufRead`
[INFO] [stderr]  --> src/main.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::{ffi, io::BufRead};
[INFO] [stderr]   |                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:146:16
[INFO] [stderr]     |
[INFO] [stderr] 146 |             if (matches.opt_present("exec2")) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prog`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let prog = env_args[0].clone();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `DEV`
[INFO] [stderr]   --> src/main.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | static DEV: bool = true;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cs-operating-systems` (bin "cs-operating-systems" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cs_operating_systems-ff21cf5ccdf208d2)
[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" "67c0d528e2625750b15e2e93856aae67db64cb3bdfcd2e23379c58a6843546d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c0d528e2625750b15e2e93856aae67db64cb3bdfcd2e23379c58a6843546d5", kill_on_drop: false }`
[INFO] [stdout] 67c0d528e2625750b15e2e93856aae67db64cb3bdfcd2e23379c58a6843546d5