[INFO] cloning repository https://github.com/ZachBaird/RustCrashCourse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZachBaird/RustCrashCourse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZachBaird%2FRustCrashCourse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZachBaird%2FRustCrashCourse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3db95120a4ab338eb7ef9ac9b0d752046ab6ab6
[INFO] testing ZachBaird/RustCrashCourse against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZachBaird%2FRustCrashCourse" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZachBaird/RustCrashCourse on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ZachBaird/RustCrashCourse
[INFO] finished tweaking git repo https://github.com/ZachBaird/RustCrashCourse
[INFO] tweaked toml for git repo https://github.com/ZachBaird/RustCrashCourse written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/ZachBaird/RustCrashCourse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34ac84c55b850b3fa17d5a582c89c136ae52ca66f0860de9f3f6a81e4d705a1c
[INFO] running `Command { std: "docker" "start" "-a" "34ac84c55b850b3fa17d5a582c89c136ae52ca66f0860de9f3f6a81e4d705a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34ac84c55b850b3fa17d5a582c89c136ae52ca66f0860de9f3f6a81e4d705a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34ac84c55b850b3fa17d5a582c89c136ae52ca66f0860de9f3f6a81e4d705a1c", kill_on_drop: false }`
[INFO] [stdout] 34ac84c55b850b3fa17d5a582c89c136ae52ca66f0860de9f3f6a81e4d705a1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 966408d54ad66c4414aa1309e45c5dd4032a4fdf925612d1e106b2e4934c8338
[INFO] running `Command { std: "docker" "start" "-a" "966408d54ad66c4414aa1309e45c5dd4032a4fdf925612d1e106b2e4934c8338", kill_on_drop: false }`
[INFO] [stderr]    Compiling crash_course v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0596]: cannot borrow `p` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/structs.rs:52:3
[INFO] [stdout]    |
[INFO] [stdout] 49 |   let p = Person::new("Zach", "Baird");
[INFO] [stdout]    |       - help: consider changing this to be mutable: `mut p`
[INFO] [stdout] ...
[INFO] [stdout] 52 |   p.set_last_name("Doe");
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crash_course` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "966408d54ad66c4414aa1309e45c5dd4032a4fdf925612d1e106b2e4934c8338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "966408d54ad66c4414aa1309e45c5dd4032a4fdf925612d1e106b2e4934c8338", kill_on_drop: false }`
[INFO] [stdout] 966408d54ad66c4414aa1309e45c5dd4032a4fdf925612d1e106b2e4934c8338