[INFO] fetching crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5...
[INFO] testing tg-rcore-tutorial-user-T3L2-0.0.1-preview.5 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5
[INFO] finished tweaking crates.io crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5
[INFO] tweaked toml for crates.io crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tg-rcore-tutorial-user-T3L2 0.0.1-preview.5 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29248c74d2c425b252c34c01dd659a049da2238afe7d8873686bd443e6cf5295
[INFO] running `Command { std: "docker" "start" "-a" "29248c74d2c425b252c34c01dd659a049da2238afe7d8873686bd443e6cf5295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29248c74d2c425b252c34c01dd659a049da2238afe7d8873686bd443e6cf5295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29248c74d2c425b252c34c01dd659a049da2238afe7d8873686bd443e6cf5295", kill_on_drop: false }`
[INFO] [stdout] 29248c74d2c425b252c34c01dd659a049da2238afe7d8873686bd443e6cf5295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 171359e35955b3908681fa425c4589b25a41f10b59b66bca9223d98c4e36d5e8
[INFO] running `Command { std: "docker" "start" "-a" "171359e35955b3908681fa425c4589b25a41f10b59b66bca9223d98c4e36d5e8", 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 log v0.4.29
[INFO] [stderr]    Compiling tg-rcore-tutorial-user-T3L2 v0.0.1-preview.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling customizable-buddy v0.0.2
[INFO] [stderr]    Compiling tg-rcore-tutorial-signal-defs v0.4.8
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling tg-rcore-tutorial-console v0.4.8
[INFO] [stdout] warning: constant `SYSCALL_FRAMEBUFFER` is never used
[INFO] [stdout]   --> src/lib.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const SYSCALL_FRAMEBUFFER: usize = 0x1000_0001;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SYSCALL_FRAMEBUFFER_FLUSH` is never used
[INFO] [stdout]   --> src/lib.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const SYSCALL_FRAMEBUFFER_FLUSH: usize = 0x1000_0002;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]   --> src/heap.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn init() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render_blocks` is never used
[INFO] [stdout]    --> src/tangram.rs:222:15
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub(crate) fn render_blocks(framebuffer: &mut [u8], width: usize, height: usize, count: usize) {
[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/rustcVpmCOO/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcVpmCOO/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/t3l2_step_13-c5a36d6c7961007c" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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-T3L2` (bin "t3l2_step_13") 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/rustc2yM7Lz/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc2yM7Lz/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/sync_sem-f5dd621fe606996e" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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/rustc4FXjuy/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustc4FXjuy/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-042cdd1829609387" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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-T3L2` (bin "sync_sem") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user-T3L2` (bin "ch5_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/rustcw7e1xT/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcw7e1xT/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/t3l2_step_01-37af272726cbd498" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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-T3L2` (bin "t3l2_step_01") 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/rustcYmGZBF/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcYmGZBF/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/user_shell-7faf1bb54d625044" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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/rustcofXAbU/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcofXAbU/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/ch6b_usertest-bd48e2b4d8005f7c" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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-T3L2` (bin "ch6b_usertest") due to 1 previous error
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-user-T3L2` (bin "ch4_mmap") 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/rustclmvt0z/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustclmvt0z/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_mmap-46e24b7bc66994e0" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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-T3L2` (bin "user_shell") 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/rustcdcoLpk/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuser_lib-93ff729c5c6d853d,libtg_rcore_tutorial_syscall-712fadb89aa44c30,libtg_rcore_tutorial_signal_defs-bf282f784fe0cfba,libnumeric_enum_macro-c9aaee5688a7adbc,libbitflags-2adfc4d1345ba0b9,libtg_rcore_tutorial_console-766cbc665fbf32e3,libspin-f3a4c05a01b1a77f,liblock_api-3fe0b79d48540412,libscopeguard-9a40176085421c5a,liblog-6f0b7ca2f57a58b6,libcustomizable_buddy-8e64319621227f23}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-L" "/opt/rustwide/target/debug/deps/rustcdcoLpk/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-d2c870f81fb95a05" "-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:91 (src/lib.rs:91)
[INFO] [stdout]           >>>            user_lib-93ff729c5c6d853d.user_lib.793ee30e24eda6a4-cgu.0.rcgu.o:(.text.entry+0x0) in archive /opt/rustwide/target/debug/deps/libuser_lib-93ff729c5c6d853d.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-T3L2` (bin "ch8_deadlock_sem1") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "171359e35955b3908681fa425c4589b25a41f10b59b66bca9223d98c4e36d5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171359e35955b3908681fa425c4589b25a41f10b59b66bca9223d98c4e36d5e8", kill_on_drop: false }`
[INFO] [stdout] 171359e35955b3908681fa425c4589b25a41f10b59b66bca9223d98c4e36d5e8
