[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#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsportaro%2Fblog_os" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jsportaro/blog_os on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/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-0/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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44edcc0881f7c220f6826466d79b681592dc73867552a1915b2b85f0e05c3329
[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" "44edcc0881f7c220f6826466d79b681592dc73867552a1915b2b85f0e05c3329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44edcc0881f7c220f6826466d79b681592dc73867552a1915b2b85f0e05c3329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44edcc0881f7c220f6826466d79b681592dc73867552a1915b2b85f0e05c3329", kill_on_drop: false }`
[INFO] [stdout] 44edcc0881f7c220f6826466d79b681592dc73867552a1915b2b85f0e05c3329
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 728a8c888415fbf18126ea540309c0391079efc512ee00c614a7c7543ca0d8d0
[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" "728a8c888415fbf18126ea540309c0391079efc512ee00c614a7c7543ca0d8d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bootloader v0.9.5
[INFO] [stderr]    Compiling blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `self`
[INFO] [stdout]   --> src/vga_buffer.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 }
[INFO] [stdout]    |                  ^ help: add `;` here
[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` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "728a8c888415fbf18126ea540309c0391079efc512ee00c614a7c7543ca0d8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "728a8c888415fbf18126ea540309c0391079efc512ee00c614a7c7543ca0d8d0", kill_on_drop: false }`
[INFO] [stdout] 728a8c888415fbf18126ea540309c0391079efc512ee00c614a7c7543ca0d8d0