[INFO] cloning repository https://github.com/jsportaro/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/jsportaro/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsportaro%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsportaro%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c090a5beafabd8befe7ba16b70f84770c16dccfa
[INFO] testing jsportaro/blog_os against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsportaro%2Fblog_os" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jsportaro/blog_os on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jsportaro/blog_os
[INFO] finished tweaking git repo https://github.com/jsportaro/blog_os
[INFO] tweaked toml for git repo https://github.com/jsportaro/blog_os written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jsportaro/blog_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.9.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d17fdf48ab2955871ebcb047da657c653d7e03cacc0af040561ee6103e83ae
[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" "74d17fdf48ab2955871ebcb047da657c653d7e03cacc0af040561ee6103e83ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d17fdf48ab2955871ebcb047da657c653d7e03cacc0af040561ee6103e83ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d17fdf48ab2955871ebcb047da657c653d7e03cacc0af040561ee6103e83ae", kill_on_drop: false }`
[INFO] [stdout] 74d17fdf48ab2955871ebcb047da657c653d7e03cacc0af040561ee6103e83ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fd5a0f7d7eae0a3d0aa567d05d080441557625c48eca83d2e966a89e6b709c6
[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" "7fd5a0f7d7eae0a3d0aa567d05d080441557625c48eca83d2e966a89e6b709c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.5
[INFO] [stderr]    Compiling blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `self`
[INFO] [stdout]   --> src/vga_buffer.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 }
[INFO] [stdout]    |                  - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 72 |                 self.column_position += 1;
[INFO] [stdout]    |                 ^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found `writer`
[INFO] [stdout]   --> src/vga_buffer.rs:96:6
[INFO] [stdout]    |
[INFO] [stdout] 96 |     }
[INFO] [stdout]    |      ^ help: add `;` here
[INFO] [stdout] 97 | 
[INFO] [stdout] 98 |     writer.write_byte(b'H');
[INFO] [stdout]    |     ------ unexpected token
[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 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog_os`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7fd5a0f7d7eae0a3d0aa567d05d080441557625c48eca83d2e966a89e6b709c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd5a0f7d7eae0a3d0aa567d05d080441557625c48eca83d2e966a89e6b709c6", kill_on_drop: false }`
[INFO] [stdout] 7fd5a0f7d7eae0a3d0aa567d05d080441557625c48eca83d2e966a89e6b709c6