[INFO] cloning repository https://github.com/Ersikan/kernul
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ersikan/kernul" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErsikan%2Fkernul", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErsikan%2Fkernul'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e737258eb21a759ea08441d1f5b08c16e78287b6
[INFO] testing Ersikan/kernul against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErsikan%2Fkernul" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ersikan/kernul on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Ersikan/kernul
[INFO] finished tweaking git repo https://github.com/Ersikan/kernul
[INFO] tweaked toml for git repo https://github.com/Ersikan/kernul written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Ersikan/kernul already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a75cd5cf5dbb73d45a03994bb14666cde2db315365cc9ab809ba3dfea4592ade
[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" "a75cd5cf5dbb73d45a03994bb14666cde2db315365cc9ab809ba3dfea4592ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a75cd5cf5dbb73d45a03994bb14666cde2db315365cc9ab809ba3dfea4592ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a75cd5cf5dbb73d45a03994bb14666cde2db315365cc9ab809ba3dfea4592ade", kill_on_drop: false }`
[INFO] [stdout] a75cd5cf5dbb73d45a03994bb14666cde2db315365cc9ab809ba3dfea4592ade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5657c5a61ffe670037f6e8998322c73d625c3c4d4ed01025fd4d9da69e272754
[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" "5657c5a61ffe670037f6e8998322c73d625c3c4d4ed01025fd4d9da69e272754", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling volatile v0.2.6
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling kernul v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `selector`
[INFO] [stdout]   --> src/interrupts/idt.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn new(base: u32, selector: u8, gate_type: GateType, privilege: u8) -> IdtEntry {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interrupts/idt.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn new(base: u32, selector: u8, gate_type: GateType, privilege: u8) -> IdtEntry {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enable`
[INFO] [stdout]   --> src/interrupts/idt.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn enable(&mut self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `disable`
[INFO] [stdout]   --> src/interrupts/idt.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn disable(&mut self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc.kernul.4rv6lxy5-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/kernul-37aabdb6317b19cc" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/kernul-f59129e7055120da/out" "-L" "/opt/rustwide/target/debug/build/kernul-f59129e7055120da/out" "-L" "/opt/rustwide/target/debug/build/kernul-f59129e7055120da/out" "-L" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "-Wl,--whole-archive" "-lboot" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "-lgdt" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "-lidt" "-Wl,--no-whole-archive" "/opt/rustwide/target/debug/deps/libvolatile-4d05b93ec8397c6b.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-63fcdb5dcf52087e.rlib" "/opt/rustwide/target/debug/deps/libspin-95ac90917f360d31.rlib" "/opt/rustwide/target/debug/deps/libbitflags-2ed4e320bb668de4.rlib" "/opt/rustwide/target/debug/deps/libbitfield-c7122d32cd2890bf.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-68f423c59dc48a40.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-54580c7798bf2225.rlib" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-95a4d456339b7385.rlib" "-Wl,-Bdynamic"
[INFO] [stdout]   = note: /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libboot.a when searching for -lboot
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libboot.a when searching for -lboot
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libboot.a when searching for -lboot
[INFO] [stdout]           /usr/bin/ld: cannot find -lboot
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libgdt.a when searching for -lgdt
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libgdt.a when searching for -lgdt
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libgdt.a when searching for -lgdt
[INFO] [stdout]           /usr/bin/ld: cannot find -lgdt
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libidt.a when searching for -lidt
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libidt.a when searching for -lidt
[INFO] [stdout]           /usr/bin/ld: skipping incompatible /opt/rustwide/target/debug/build/kernul-f59129e7055120da/out/libidt.a when searching for -lidt
[INFO] [stdout]           /usr/bin/ld: cannot find -lidt
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernul`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5657c5a61ffe670037f6e8998322c73d625c3c4d4ed01025fd4d9da69e272754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5657c5a61ffe670037f6e8998322c73d625c3c4d4ed01025fd4d9da69e272754", kill_on_drop: false }`
[INFO] [stdout] 5657c5a61ffe670037f6e8998322c73d625c3c4d4ed01025fd4d9da69e272754