[INFO] cloning repository https://github.com/happysiro/blog_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/happysiro/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysiro%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysiro%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a893aac44f2b1118f80138514ecb1096e82728d
[INFO] checking happysiro/blog_os against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysiro%2Fblog_os" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/happysiro/blog_os on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/happysiro/blog_os
[INFO] finished tweaking git repo https://github.com/happysiro/blog_os
[INFO] tweaked toml for git repo https://github.com/happysiro/blog_os written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/happysiro/blog_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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2427875cfd4b0b8ecb5b2bb4b883509ec15b957d272d2b681f9d80d1eefa44c6
[INFO] running `Command { std: "docker" "start" "-a" "2427875cfd4b0b8ecb5b2bb4b883509ec15b957d272d2b681f9d80d1eefa44c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2427875cfd4b0b8ecb5b2bb4b883509ec15b957d272d2b681f9d80d1eefa44c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2427875cfd4b0b8ecb5b2bb4b883509ec15b957d272d2b681f9d80d1eefa44c6", kill_on_drop: false }`
[INFO] [stdout] 2427875cfd4b0b8ecb5b2bb4b883509ec15b957d272d2b681f9d80d1eefa44c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfca1bed0283cb3f0515042367e0941d9dae8f11344278a7f5ce4285e5254282
[INFO] running `Command { std: "docker" "start" "-a" "bfca1bed0283cb3f0515042367e0941d9dae8f11344278a7f5ce4285e5254282", kill_on_drop: false }`
[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:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 14 | |     loop {}
[INFO] [stdout] 15 | | }
[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/af4a5a13a15fa0c60e06321077ef452f769b42fd/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eb900a948ffb2e3b.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] running `Command { std: "docker" "inspect" "bfca1bed0283cb3f0515042367e0941d9dae8f11344278a7f5ce4285e5254282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfca1bed0283cb3f0515042367e0941d9dae8f11344278a7f5ce4285e5254282", kill_on_drop: false }`
[INFO] [stdout] bfca1bed0283cb3f0515042367e0941d9dae8f11344278a7f5ce4285e5254282
[INFO] checking happysiro/blog_os against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappysiro%2Fblog_os" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/happysiro/blog_os on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/happysiro/blog_os
[INFO] finished tweaking git repo https://github.com/happysiro/blog_os
[INFO] tweaked toml for git repo https://github.com/happysiro/blog_os written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/happysiro/blog_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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e81f3def817c9b0cfe89e169deb2558525dd7c8d1460506a64a53045a28dfe25
[INFO] running `Command { std: "docker" "start" "-a" "e81f3def817c9b0cfe89e169deb2558525dd7c8d1460506a64a53045a28dfe25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e81f3def817c9b0cfe89e169deb2558525dd7c8d1460506a64a53045a28dfe25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e81f3def817c9b0cfe89e169deb2558525dd7c8d1460506a64a53045a28dfe25", kill_on_drop: false }`
[INFO] [stdout] e81f3def817c9b0cfe89e169deb2558525dd7c8d1460506a64a53045a28dfe25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3005cfd4f1c93855dd3ba37df79a06ca4a097df3ac25f9da71325dbd1e9368da
[INFO] running `Command { std: "docker" "start" "-a" "3005cfd4f1c93855dd3ba37df79a06ca4a097df3ac25f9da71325dbd1e9368da", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "3005cfd4f1c93855dd3ba37df79a06ca4a097df3ac25f9da71325dbd1e9368da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3005cfd4f1c93855dd3ba37df79a06ca4a097df3ac25f9da71325dbd1e9368da", kill_on_drop: false }`
[INFO] [stdout] 3005cfd4f1c93855dd3ba37df79a06ca4a097df3ac25f9da71325dbd1e9368da