[INFO] updating cached repository https://github.com/armersong/nostd-sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a6ca1920c67acbcea9325c98d1699be30242a86
[INFO] checking armersong/nostd-sample against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmersong%2Fnostd-sample" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/armersong/nostd-sample on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/armersong/nostd-sample
[INFO] finished tweaking git repo https://github.com/armersong/nostd-sample
[INFO] tweaked toml for git repo https://github.com/armersong/nostd-sample written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/armersong/nostd-sample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a49076c3d44a444c83e4c4bfbc6e617d7596229ad53c60a19892c47a22e7e05
[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" "9a49076c3d44a444c83e4c4bfbc6e617d7596229ad53c60a19892c47a22e7e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a49076c3d44a444c83e4c4bfbc6e617d7596229ad53c60a19892c47a22e7e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a49076c3d44a444c83e4c4bfbc6e617d7596229ad53c60a19892c47a22e7e05", kill_on_drop: false }`
[INFO] [stdout] 9a49076c3d44a444c83e4c4bfbc6e617d7596229ad53c60a19892c47a22e7e05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0bd749a98680a45b4f06e1151fe03450adb27ec2e8f8476b1f4fb6df2067038
[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" "b0bd749a98680a45b4f06e1151fe03450adb27ec2e8f8476b1f4fb6df2067038", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking nostd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `oom`
[INFO] [stdout]    --> src/calloc.rs:128:1
[INFO] [stdout]     |
[INFO] [stdout] 128 | / fn alloc_error(layout: Layout) -> ! {
[INFO] [stdout] 129 | |     unsafe {
[INFO] [stdout] 130 | |         printf("Error! alloc_error size %d\n\0".as_ptr(), layout.size());
[INFO] [stdout] 131 | |     }
[INFO] [stdout] 132 | |     loop {}
[INFO] [stdout] 133 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]     = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/c724b67e1b474262917a5154d74e7072267593fe/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e2448d646eabb792.rlib
[INFO] [stdout]     = note: second definition in the local crate (`nostd`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 20 | |     loop {}
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/c724b67e1b474262917a5154d74e7072267593fe/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e2448d646eabb792.rlib
[INFO] [stdout]    = note: second definition in the local crate (`nostd`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stdout]   --> src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern "C" fn eh_personality() {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `panic_unwind` (which `std` depends on)
[INFO] [stdout]    = note: first definition in `panic_unwind` loaded from /opt/rustwide/rustup-home/toolchains/c724b67e1b474262917a5154d74e7072267593fe/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-4d6da34bc177af8d.rlib
[INFO] [stdout]    = note: second definition in the local crate (`nostd`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nostd`.
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b0bd749a98680a45b4f06e1151fe03450adb27ec2e8f8476b1f4fb6df2067038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0bd749a98680a45b4f06e1151fe03450adb27ec2e8f8476b1f4fb6df2067038", kill_on_drop: false }`
[INFO] [stdout] b0bd749a98680a45b4f06e1151fe03450adb27ec2e8f8476b1f4fb6df2067038