[INFO] cloning repository https://github.com/oldwomanjosiah/blog-os-follow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oldwomanjosiah/blog-os-follow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldwomanjosiah%2Fblog-os-follow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldwomanjosiah%2Fblog-os-follow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeeee62f57a301bbf6eaadacd89587e852e2aebf
[INFO] checking oldwomanjosiah/blog-os-follow against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldwomanjosiah%2Fblog-os-follow" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oldwomanjosiah/blog-os-follow on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/oldwomanjosiah/blog-os-follow
[INFO] finished tweaking git repo https://github.com/oldwomanjosiah/blog-os-follow
[INFO] tweaked toml for git repo https://github.com/oldwomanjosiah/blog-os-follow written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/oldwomanjosiah/blog-os-follow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a63131bf4eaf32305a39952aa71ba03f486d2f0a30819892a7c8893bfa2fbf8d
[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" "a63131bf4eaf32305a39952aa71ba03f486d2f0a30819892a7c8893bfa2fbf8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a63131bf4eaf32305a39952aa71ba03f486d2f0a30819892a7c8893bfa2fbf8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a63131bf4eaf32305a39952aa71ba03f486d2f0a30819892a7c8893bfa2fbf8d", kill_on_drop: false }`
[INFO] [stdout] a63131bf4eaf32305a39952aa71ba03f486d2f0a30819892a7c8893bfa2fbf8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 925dd684ed8423316dec98b20d7d79d1813508d56d38e53ce717befa3b830a64
[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" "925dd684ed8423316dec98b20d7d79d1813508d56d38e53ce717befa3b830a64", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling x86_64 v0.13.2
[INFO] [stderr]    Compiling bootloader v0.9.12
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking uart_16550 v0.2.12
[INFO] [stderr]     Checking blog-os-bin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/main.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[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 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog-os-bin`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0609]: no field `chars` on type `MutexGuard<'_, Writer>`
[INFO] [stdout]    --> src/vga_buffer.rs:200:40
[INFO] [stdout]     |
[INFO] [stdout] 200 |                     char::from((buffer.chars[BUFFER_HEIGHT - 2][i]).read().ascii_char),
[INFO] [stdout]     |                                        ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 200 |                     char::from((buffer.data.buffer.chars[BUFFER_HEIGHT - 2][i]).read().ascii_char),
[INFO] [stdout]     |                                        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0609`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "925dd684ed8423316dec98b20d7d79d1813508d56d38e53ce717befa3b830a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "925dd684ed8423316dec98b20d7d79d1813508d56d38e53ce717befa3b830a64", kill_on_drop: false }`
[INFO] [stdout] 925dd684ed8423316dec98b20d7d79d1813508d56d38e53ce717befa3b830a64