[INFO] cloning repository https://github.com/mogobanyamwaro/learning-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mogobanyamwaro/learning-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmogobanyamwaro%2Flearning-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmogobanyamwaro%2Flearning-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc3f56caaa89eb0a53099eb9f670e4650e86fe17
[INFO] checking mogobanyamwaro/learning-os against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmogobanyamwaro%2Flearning-os" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mogobanyamwaro/learning-os on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mogobanyamwaro/learning-os
[INFO] finished tweaking git repo https://github.com/mogobanyamwaro/learning-os
[INFO] tweaked toml for git repo https://github.com/mogobanyamwaro/learning-os written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mogobanyamwaro/learning-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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 510eac085cb7c6cdcd2c64d0bb24352416450c1acbd69bc76ee4368eea2ff447
[INFO] running `Command { std: "docker" "start" "-a" "510eac085cb7c6cdcd2c64d0bb24352416450c1acbd69bc76ee4368eea2ff447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "510eac085cb7c6cdcd2c64d0bb24352416450c1acbd69bc76ee4368eea2ff447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510eac085cb7c6cdcd2c64d0bb24352416450c1acbd69bc76ee4368eea2ff447", kill_on_drop: false }`
[INFO] [stdout] 510eac085cb7c6cdcd2c64d0bb24352416450c1acbd69bc76ee4368eea2ff447
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef233a91d7e5055ef3907be6f7549918e1be180bd1ff76bc171d11fddba9c82a
[INFO] running `Command { std: "docker" "start" "-a" "ef233a91d7e5055ef3907be6f7549918e1be180bd1ff76bc171d11fddba9c82a", kill_on_drop: false }`
[INFO] [stderr]     Checking operating v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `fn`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process
[INFO] [stdout]   |                 ^ help: add `;` here
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   | -- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found keyword `fn`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process
[INFO] [stdout]   |                 ^ help: add `;` here
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   | -- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected value, found module `process`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     process.exit(a)
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: use the path separator to refer to an item
[INFO] [stdout]   |
[INFO] [stdout] 9 |     process::exit(a)
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected value, found module `process`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     process.exit(a)
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: use the path separator to refer to an item
[INFO] [stdout]   |
[INFO] [stdout] 9 |     process::exit(a)
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `operating` (bin "operating" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `operating` (bin "operating") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ef233a91d7e5055ef3907be6f7549918e1be180bd1ff76bc171d11fddba9c82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef233a91d7e5055ef3907be6f7549918e1be180bd1ff76bc171d11fddba9c82a", kill_on_drop: false }`
[INFO] [stdout] ef233a91d7e5055ef3907be6f7549918e1be180bd1ff76bc171d11fddba9c82a