[INFO] cloning repository https://github.com/stay-on-main/rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stay-on-main/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstay-on-main%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstay-on-main%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9e61d13debacf429e6635b28cd9d3776fc522ff
[INFO] checking stay-on-main/rust-os against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstay-on-main%2Frust-os" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stay-on-main/rust-os on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stay-on-main/rust-os
[INFO] finished tweaking git repo https://github.com/stay-on-main/rust-os
[INFO] tweaked toml for git repo https://github.com/stay-on-main/rust-os written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/stay-on-main/rust-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] warning: unused manifest key: target.thumbv6m-none-eabi.rustflags
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 135a3350165dabccf4bbc1fd11e8c2fa3eabd39f830f76283506325d08c4c406
[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" "135a3350165dabccf4bbc1fd11e8c2fa3eabd39f830f76283506325d08c4c406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "135a3350165dabccf4bbc1fd11e8c2fa3eabd39f830f76283506325d08c4c406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135a3350165dabccf4bbc1fd11e8c2fa3eabd39f830f76283506325d08c4c406", kill_on_drop: false }`
[INFO] [stdout] 135a3350165dabccf4bbc1fd11e8c2fa3eabd39f830f76283506325d08c4c406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d45c9416bf6361c3134d755d6f3d77a5673712e831569a6a54afaba4a55ba80
[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" "0d45c9416bf6361c3134d755d6f3d77a5673712e831569a6a54afaba4a55ba80", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] warning: unused manifest key: target.thumbv6m-none-eabi.rustflags
[INFO] [stderr]     Checking hello_arm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid asm template string: expected `'}'`, found `','`
[INFO] [stdout]    --> src/os.rs:181:23
[INFO] [stdout]     |
[INFO] [stdout] 181 |               push {r4, r5, r6, r7} 
[INFO] [stdout]     |                    -  ^ expected `}` in asm template string
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    because of this opening brace
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to print `{`, you can escape it using `{{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid asm template string: expected `'}'`, found `','`
[INFO] [stdout]    --> src/os.rs:181:23
[INFO] [stdout]     |
[INFO] [stdout] 181 |               push {r4, r5, r6, r7} 
[INFO] [stdout]     |                    -  ^ expected `}` in asm template string
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    because of this opening brace
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to print `{`, you can escape it using `{{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]    --> src/os.rs:220:1
[INFO] [stdout]     |
[INFO] [stdout] 220 | / fn panic_impl(_info: &PanicInfo) -> ! {
[INFO] [stdout] 221 | |     loop {
[INFO] [stdout] 222 | |
[INFO] [stdout] 223 | |     }
[INFO] [stdout] 224 | | }
[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/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-afd4b9aba051f3ad.rlib
[INFO] [stdout]     = note: second definition in the local crate (`hello_arm`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello_arm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0d45c9416bf6361c3134d755d6f3d77a5673712e831569a6a54afaba4a55ba80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d45c9416bf6361c3134d755d6f3d77a5673712e831569a6a54afaba4a55ba80", kill_on_drop: false }`
[INFO] [stdout] 0d45c9416bf6361c3134d755d6f3d77a5673712e831569a6a54afaba4a55ba80