[INFO] cloning repository https://github.com/dieu-detruit/writing-os-with-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dieu-detruit/writing-os-with-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdieu-detruit%2Fwriting-os-with-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdieu-detruit%2Fwriting-os-with-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2922e74c9c14b60bdda7b1656cdc16bcab0e9f7a
[INFO] checking dieu-detruit/writing-os-with-rust against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdieu-detruit%2Fwriting-os-with-rust" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dieu-detruit/writing-os-with-rust on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dieu-detruit/writing-os-with-rust
[INFO] finished tweaking git repo https://github.com/dieu-detruit/writing-os-with-rust
[INFO] tweaked toml for git repo https://github.com/dieu-detruit/writing-os-with-rust written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/dieu-detruit/writing-os-with-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6494208607e047eec4975ab32e0b95ed7d8fcc40b1e7d94ee86c59e569a5b882
[INFO] running `Command { std: "docker" "start" "-a" "6494208607e047eec4975ab32e0b95ed7d8fcc40b1e7d94ee86c59e569a5b882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6494208607e047eec4975ab32e0b95ed7d8fcc40b1e7d94ee86c59e569a5b882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6494208607e047eec4975ab32e0b95ed7d8fcc40b1e7d94ee86c59e569a5b882", kill_on_drop: false }`
[INFO] [stdout] 6494208607e047eec4975ab32e0b95ed7d8fcc40b1e7d94ee86c59e569a5b882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b3a91a43f6974f4e73e96c43038d835a18b424e6c5df8d1dbd6f0aae9de2a1b
[INFO] running `Command { std: "docker" "start" "-a" "5b3a91a43f6974f4e73e96c43038d835a18b424e6c5df8d1dbd6f0aae9de2a1b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking takafumi_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn panic(_info: &PanicInfo) -> ! {
[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/39e1293fce4b650061e85dda88aa428f726a8444/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-10ccbcbb85a60ebf.rlib
[INFO] [stdout]    = note: second definition in the local crate (`takafumi_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `takafumi_os` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5b3a91a43f6974f4e73e96c43038d835a18b424e6c5df8d1dbd6f0aae9de2a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b3a91a43f6974f4e73e96c43038d835a18b424e6c5df8d1dbd6f0aae9de2a1b", kill_on_drop: false }`
[INFO] [stdout] 5b3a91a43f6974f4e73e96c43038d835a18b424e6c5df8d1dbd6f0aae9de2a1b