[INFO] cloning repository https://github.com/RainyD4y/os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RainyD4y/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRainyD4y%2Fos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRainyD4y%2Fos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5cfb75cc74cb43b873428a776a87a9bda84a8349
[INFO] testing RainyD4y/os against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRainyD4y%2Fos" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  16% (38/224)   
Checking out files:  17% (39/224)   
Checking out files:  18% (41/224)   
Checking out files:  19% (43/224)   
Checking out files:  20% (45/224)   
Checking out files:  21% (48/224)   
Checking out files:  22% (50/224)   
Checking out files:  23% (52/224)   
Checking out files:  24% (54/224)   
Checking out files:  25% (56/224)   
Checking out files:  26% (59/224)   
Checking out files:  27% (61/224)   
Checking out files:  28% (63/224)   
Checking out files:  29% (65/224)   
Checking out files:  30% (68/224)   
Checking out files:  31% (70/224)   
Checking out files:  32% (72/224)   
Checking out files:  33% (74/224)   
Checking out files:  34% (77/224)   
Checking out files:  35% (79/224)   
Checking out files:  36% (81/224)   
Checking out files:  37% (83/224)   
Checking out files:  38% (86/224)   
Checking out files:  39% (88/224)   
Checking out files:  40% (90/224)   
Checking out files:  41% (92/224)   
Checking out files:  42% (95/224)   
Checking out files:  43% (97/224)   
Checking out files:  44% (99/224)   
Checking out files:  45% (101/224)   
Checking out files:  46% (104/224)   
Checking out files:  47% (106/224)   
Checking out files:  48% (108/224)   
Checking out files:  49% (110/224)   
Checking out files:  50% (112/224)   
Checking out files:  51% (115/224)   
Checking out files:  52% (117/224)   
Checking out files:  53% (119/224)   
Checking out files:  54% (121/224)   
Checking out files:  55% (124/224)   
Checking out files:  56% (126/224)   
Checking out files:  57% (128/224)   
Checking out files:  58% (130/224)   
Checking out files:  59% (133/224)   
Checking out files:  60% (135/224)   
Checking out files:  61% (137/224)   
Checking out files:  62% (139/224)   
Checking out files:  63% (142/224)   
Checking out files:  64% (144/224)   
Checking out files:  65% (146/224)   
Checking out files:  66% (148/224)   
Checking out files:  67% (151/224)   
Checking out files:  68% (153/224)   
Checking out files:  69% (155/224)   
Checking out files:  70% (157/224)   
Checking out files:  71% (160/224)   
Checking out files:  72% (162/224)   
Checking out files:  73% (164/224)   
Checking out files:  74% (166/224)   
Checking out files:  75% (168/224)   
Checking out files:  75% (169/224)   
Checking out files:  76% (171/224)   
Checking out files:  77% (173/224)   
Checking out files:  78% (175/224)   
Checking out files:  78% (176/224)   
Checking out files:  79% (177/224)   
Checking out files:  80% (180/224)   
Checking out files:  81% (182/224)   
Checking out files:  82% (184/224)   
Checking out files:  83% (186/224)   
Checking out files:  84% (189/224)   
Checking out files:  85% (191/224)   
Checking out files:  86% (193/224)   
Checking out files:  87% (195/224)   
Checking out files:  88% (198/224)   
Checking out files:  89% (200/224)   
Checking out files:  90% (202/224)   
Checking out files:  91% (204/224)   
Checking out files:  92% (207/224)   
Checking out files:  93% (209/224)   
Checking out files:  94% (211/224)   
Checking out files:  95% (213/224)   
Checking out files:  96% (216/224)   
Checking out files:  97% (218/224)   
Checking out files:  98% (220/224)   
Checking out files:  99% (222/224)   
Checking out files: 100% (224/224)   
Checking out files: 100% (224/224), done.
[INFO] validating manifest of git repo https://github.com/RainyD4y/os on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RainyD4y/os
[INFO] finished tweaking git repo https://github.com/RainyD4y/os
[INFO] tweaked toml for git repo https://github.com/RainyD4y/os written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/RainyD4y/os 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6e823e02fe673ef389fdfc2fa43623f1a841e5559ccd34f9320f51af2ab33743
[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" "6e823e02fe673ef389fdfc2fa43623f1a841e5559ccd34f9320f51af2ab33743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e823e02fe673ef389fdfc2fa43623f1a841e5559ccd34f9320f51af2ab33743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e823e02fe673ef389fdfc2fa43623f1a841e5559ccd34f9320f51af2ab33743", kill_on_drop: false }`
[INFO] [stdout] 6e823e02fe673ef389fdfc2fa43623f1a841e5559ccd34f9320f51af2ab33743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 201d25dbccc010936bbedfedee6c2f7043b08c0735857ced7bb63e685c2dd2ba
[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" "201d25dbccc010936bbedfedee6c2f7043b08c0735857ced7bb63e685c2dd2ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling os v0.1.0 (/opt/rustwide/workdir)
[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/os-3c3eac05537fab8e.os.87643gx6-cgu.0.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/os-3c3eac05537fab8e" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/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: /opt/rustwide/target/debug/deps/os-3c3eac05537fab8e.os.87643gx6-cgu.0.rcgu.o: in function `_start':
[INFO] [stdout]           /opt/rustwide/workdir/src/main.rs:13: multiple definition of `_start'; /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stdout]           /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
[INFO] [stdout]           (.text+0x16): undefined reference to `__libc_csu_fini'
[INFO] [stdout]           /usr/bin/ld: (.text+0x1d): undefined reference to `__libc_csu_init'
[INFO] [stdout]           /usr/bin/ld: (.text+0x24): undefined reference to `main'
[INFO] [stdout]           /usr/bin/ld: (.text+0x2a): undefined reference to `__libc_start_main'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "201d25dbccc010936bbedfedee6c2f7043b08c0735857ced7bb63e685c2dd2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201d25dbccc010936bbedfedee6c2f7043b08c0735857ced7bb63e685c2dd2ba", kill_on_drop: false }`
[INFO] [stdout] 201d25dbccc010936bbedfedee6c2f7043b08c0735857ced7bb63e685c2dd2ba