[INFO] fetching crate tg-rcore-tutorial-user 0.4.10...
[INFO] testing tg-rcore-tutorial-user-0.4.10 against 1.95.0 for beta-1.96-2
[INFO] extracting crate tg-rcore-tutorial-user 0.4.10 into /workspace/builds/worker-1-tc1/source
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate tg-rcore-tutorial-user 0.4.10
[INFO] finished tweaking crates.io crate tg-rcore-tutorial-user 0.4.10
[INFO] tweaked toml for crates.io crate tg-rcore-tutorial-user 0.4.10 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tg-rcore-tutorial-user 0.4.10 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tg-rcore-tutorial-user 0.4.10 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tg-rcore-tutorial-console v0.4.8
[INFO] [stderr]   Downloaded customizable-buddy v0.0.4
[INFO] [stderr]   Downloaded tg-rcore-tutorial-syscall v0.4.8
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4994ca7a4af17022d64428ee92107ed330b7bb83231cada178be8c279bece705
[INFO] running `Command { std: "docker" "start" "-a" "4994ca7a4af17022d64428ee92107ed330b7bb83231cada178be8c279bece705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4994ca7a4af17022d64428ee92107ed330b7bb83231cada178be8c279bece705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4994ca7a4af17022d64428ee92107ed330b7bb83231cada178be8c279bece705", kill_on_drop: false }`
[INFO] [stdout] 4994ca7a4af17022d64428ee92107ed330b7bb83231cada178be8c279bece705
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2287cd97ec84f715bb20f72555633ffd0aa9c0fc1dcded6fdbd3b1558aad899
[INFO] running `Command { std: "docker" "start" "-a" "a2287cd97ec84f715bb20f72555633ffd0aa9c0fc1dcded6fdbd3b1558aad899", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling tg-rcore-tutorial-syscall v0.4.8
[INFO] [stderr]    Compiling numeric-enum-macro v0.2.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling tg-rcore-tutorial-user v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling customizable-buddy v0.0.4
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling tg-rcore-tutorial-signal-defs v0.4.8
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling tg-rcore-tutorial-console v0.4.8
[INFO] [stdout] warning[E0133]: dereference of raw pointer is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let id = *id;
[INFO] [stdout]    |              ^^^ dereference of raw pointer
[INFO] [stdout]    |
[INFO] [stdout]    = note: raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | unsafe fn producer(id: *const usize) -> isize {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         BUFFER[FRONT] = id;
[INFO] [stdout]    |         ^^^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:33:16
[INFO] [stdout]    |
[INFO] [stdout] 33 |         BUFFER[FRONT] = id;
[INFO] [stdout]    |                ^^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         FRONT = (FRONT + 1) % BUFFER_SIZE;
[INFO] [stdout]    |         ^^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:34:18
[INFO] [stdout]    |
[INFO] [stdout] 34 |         FRONT = (FRONT + 1) % BUFFER_SIZE;
[INFO] [stdout]    |                  ^^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout] 45 |         print!("{} ", BUFFER[TAIL]);
[INFO] [stdout]    |                       ^^^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn consumer() -> isize {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:45:30
[INFO] [stdout]    |
[INFO] [stdout] 45 |         print!("{} ", BUFFER[TAIL]);
[INFO] [stdout]    |                              ^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         TAIL = (TAIL + 1) % BUFFER_SIZE;
[INFO] [stdout]    |         ^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: use of mutable static is unsafe and requires unsafe block
[INFO] [stdout]   --> src/bin/mpsc_sem.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |         TAIL = (TAIL + 1) % BUFFER_SIZE;
[INFO] [stdout]    |                 ^^^^ use of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustc5JtCfP/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc5JtCfP/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch6_file2-4701b48718af428f" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcCsYGm4/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcCsYGm4/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch5_stride5-1050746630b3146c" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch6_file2") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcbkaQFc/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcbkaQFc/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch8b_usertest-fb8e8d49fe803af9" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch5_stride5") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcQd3XNA/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcQd3XNA/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch5_getpid-6a600cbbbb68047b" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustc4Mjmon/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc4Mjmon/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch5_stride-311c46d07f0e5081" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch8b_usertest") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch5_stride") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcsyjvEq/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcsyjvEq/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch8_deadlock_sem1-7319476910727cbb" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustch2Bfv6/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustch2Bfv6/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/13forktree-959bbb05154f9305" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch8_deadlock_sem1") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcHMhYZL/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcHMhYZL/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch5_usertest-d412b6210041f17b" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch5_getpid") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "13forktree") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcvf2wlk/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcvf2wlk/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch8_deadlock_mutex1-5091e14dd00d3785" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcwlAcPD/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcwlAcPD/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/14forktest2-79a04a547ded590e" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcvKuY8L/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcvKuY8L/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch5b_usertest-8b06480bfb1e074b" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "14forktest2") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustc2lF4Jc/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc2lF4Jc/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/sig_ctrlc-827ce75f3b67c20a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch8_deadlock_mutex1") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch5b_usertest") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcz1nFtM/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcz1nFtM/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch4_mmap1-ecbb56c6e06d3a96" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch4_mmap1") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch5_usertest") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "sig_ctrlc") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcPZpcjF/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcPZpcjF/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/ch3_trace-a386255ae26d5c96" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "ch3_trace") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcOxhIUn/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcOxhIUn/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/mpsc_sem-81d46a5ba66c9e16" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "mpsc_sem") due to 1 previous error; 9 warnings emitted
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcgsotor/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-5aef675c169a3bfd,libtg_rcore_tutorial_syscall-e36f4720614166c1,libtg_rcore_tutorial_signal_defs-6733bf32a1627404,libnumeric_enum_macro-ba2759959a4943d0,libbitflags-ff6be3a81e3401fe,libtg_rcore_tutorial_console-33b54663fa39f663,libspin-f8ceb3bf6162d528,liblock_api-d422089f2e408c49,libscopeguard-1f0cfbd0becb91c4,liblog-e8b5e4049a6321bf,libcustomizable_buddy-915bac22e2edab12}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcgsotor/raw-dylibs" "-Wl,-Bdynamic" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/phil_din_mutex-b14385dcbcff49ee" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: duplicate symbol: _start
[INFO] [stdout]           >>> defined at /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           >>> defined at lib.rs:19 (src/lib.rs:19)
[INFO] [stdout]           >>>            user_lib-5aef675c169a3bfd.user_lib.7952be0f2038ede6-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-5aef675c169a3bfd.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user` (bin "phil_din_mutex") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a2287cd97ec84f715bb20f72555633ffd0aa9c0fc1dcded6fdbd3b1558aad899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2287cd97ec84f715bb20f72555633ffd0aa9c0fc1dcded6fdbd3b1558aad899", kill_on_drop: false }`
[INFO] [stdout] a2287cd97ec84f715bb20f72555633ffd0aa9c0fc1dcded6fdbd3b1558aad899
