[INFO] cloning repository https://github.com/ujjwal3067/ExperimentalOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ujjwal3067/ExperimentalOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FExperimentalOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FExperimentalOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 045ade66c8a8c525528c58b95cb45fda5e400542
[INFO] checking ujjwal3067/ExperimentalOS against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FExperimentalOS" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ujjwal3067/ExperimentalOS on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ujjwal3067/ExperimentalOS
[INFO] finished tweaking git repo https://github.com/ujjwal3067/ExperimentalOS
[INFO] tweaked toml for git repo https://github.com/ujjwal3067/ExperimentalOS written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ujjwal3067/ExperimentalOS 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded bootloader v0.9.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cca6605ebad69c76ef05eb548962436bfa4de9dbb9b379784fcd559a620bb4d4
[INFO] running `Command { std: "docker" "start" "-a" "cca6605ebad69c76ef05eb548962436bfa4de9dbb9b379784fcd559a620bb4d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cca6605ebad69c76ef05eb548962436bfa4de9dbb9b379784fcd559a620bb4d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca6605ebad69c76ef05eb548962436bfa4de9dbb9b379784fcd559a620bb4d4", kill_on_drop: false }`
[INFO] [stdout] cca6605ebad69c76ef05eb548962436bfa4de9dbb9b379784fcd559a620bb4d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33828c50282ac4ffc198dcd156fe15064fd8ace5869160840d0d2b4620f23fd9
[INFO] running `Command { std: "docker" "start" "-a" "33828c50282ac4ffc198dcd156fe15064fd8ace5869160840d0d2b4620f23fd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.22
[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 blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 12 | |     println!("{}", info);
[INFO] [stdout] 13 | |     loop {}
[INFO] [stdout] 14 | | }
[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/506512391b1a75ae450d36c9420978402a91abcc/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6701759d8343e913.rlib
[INFO] [stdout]    = note: second definition in the local crate (`blog_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 `blog_os` (bin "blog_os" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "33828c50282ac4ffc198dcd156fe15064fd8ace5869160840d0d2b4620f23fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33828c50282ac4ffc198dcd156fe15064fd8ace5869160840d0d2b4620f23fd9", kill_on_drop: false }`
[INFO] [stdout] 33828c50282ac4ffc198dcd156fe15064fd8ace5869160840d0d2b4620f23fd9
[INFO] checking ujjwal3067/ExperimentalOS against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fujjwal3067%2FExperimentalOS" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ujjwal3067/ExperimentalOS on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ujjwal3067/ExperimentalOS
[INFO] finished tweaking git repo https://github.com/ujjwal3067/ExperimentalOS
[INFO] tweaked toml for git repo https://github.com/ujjwal3067/ExperimentalOS written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ujjwal3067/ExperimentalOS 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bb8a102d8c6b7888005236bfc90d8531f9c19364fd8b5f9a908ac345146d231
[INFO] running `Command { std: "docker" "start" "-a" "2bb8a102d8c6b7888005236bfc90d8531f9c19364fd8b5f9a908ac345146d231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bb8a102d8c6b7888005236bfc90d8531f9c19364fd8b5f9a908ac345146d231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb8a102d8c6b7888005236bfc90d8531f9c19364fd8b5f9a908ac345146d231", kill_on_drop: false }`
[INFO] [stdout] 2bb8a102d8c6b7888005236bfc90d8531f9c19364fd8b5f9a908ac345146d231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3df87e2a6db5f3f8a072ebb13b96e65156aceee23f0476a538b489fc2b8f1ad9
[INFO] running `Command { std: "docker" "start" "-a" "3df87e2a6db5f3f8a072ebb13b96e65156aceee23f0476a538b489fc2b8f1ad9", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "3df87e2a6db5f3f8a072ebb13b96e65156aceee23f0476a538b489fc2b8f1ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df87e2a6db5f3f8a072ebb13b96e65156aceee23f0476a538b489fc2b8f1ad9", kill_on_drop: false }`
[INFO] [stdout] 3df87e2a6db5f3f8a072ebb13b96e65156aceee23f0476a538b489fc2b8f1ad9