[INFO] cloning repository https://github.com/doberan/doberan_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/doberan/doberan_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoberan%2Fdoberan_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoberan%2Fdoberan_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64ba3054274506af8d699c3c967878fe385ee564
[INFO] checking doberan/doberan_os against master#426a60abc213b28a7c7198e475476b6e650d871f for pr-129199
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoberan%2Fdoberan_os" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/doberan/doberan_os on toolchain 426a60abc213b28a7c7198e475476b6e650d871f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+426a60abc213b28a7c7198e475476b6e650d871f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/doberan/doberan_os
[INFO] finished tweaking git repo https://github.com/doberan/doberan_os
[INFO] tweaked toml for git repo https://github.com/doberan/doberan_os written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/doberan/doberan_os 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" "+426a60abc213b28a7c7198e475476b6e650d871f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking doberan/doberan_os against try#2c70eb47850052381670935f807d41647a7dc992 for pr-129199
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoberan%2Fdoberan_os" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/doberan/doberan_os on toolchain 2c70eb47850052381670935f807d41647a7dc992
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c70eb47850052381670935f807d41647a7dc992" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/doberan/doberan_os
[INFO] finished tweaking git repo https://github.com/doberan/doberan_os
[INFO] tweaked toml for git repo https://github.com/doberan/doberan_os written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/doberan/doberan_os 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" "+2c70eb47850052381670935f807d41647a7dc992" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+2c70eb47850052381670935f807d41647a7dc992" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5c0941aed157f9763266774ddcc947fcf3849687c88da40649ad17afbd2da18
[INFO] running `Command { std: "docker" "start" "-a" "a5c0941aed157f9763266774ddcc947fcf3849687c88da40649ad17afbd2da18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5c0941aed157f9763266774ddcc947fcf3849687c88da40649ad17afbd2da18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5c0941aed157f9763266774ddcc947fcf3849687c88da40649ad17afbd2da18", kill_on_drop: false }`
[INFO] [stdout] a5c0941aed157f9763266774ddcc947fcf3849687c88da40649ad17afbd2da18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+2c70eb47850052381670935f807d41647a7dc992" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 131bbc338ea4983a815562835d96db8b3a5c0ea5aebf9ae1bd18b52f7909e02d
[INFO] running `Command { std: "docker" "start" "-a" "131bbc338ea4983a815562835d96db8b3a5c0ea5aebf9ae1bd18b52f7909e02d", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.11
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking doberan_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 11 | |     println!("{}", info);
[INFO] [stdout] 12 | |     loop {}
[INFO] [stdout] 13 | | }
[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/2c70eb47850052381670935f807d41647a7dc992/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f4c4082e8243d12c.rlib
[INFO] [stdout]    = note: second definition in the local crate (`doberan_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `doberan_os` (bin "doberan_os" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "131bbc338ea4983a815562835d96db8b3a5c0ea5aebf9ae1bd18b52f7909e02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131bbc338ea4983a815562835d96db8b3a5c0ea5aebf9ae1bd18b52f7909e02d", kill_on_drop: false }`
[INFO] [stdout] 131bbc338ea4983a815562835d96db8b3a5c0ea5aebf9ae1bd18b52f7909e02d