[INFO] cloning repository https://github.com/ian-h-chamberlain/borrowck_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ian-h-chamberlain/borrowck_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c974e3a8d2cc0852e9a9f3c04bbf9d21b8e11ac
[INFO] building ian-h-chamberlain/borrowck_examples against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-h-chamberlain%2Fborrowck_examples" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ian-h-chamberlain/borrowck_examples on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ian-h-chamberlain/borrowck_examples
[INFO] finished tweaking git repo https://github.com/ian-h-chamberlain/borrowck_examples
[INFO] tweaked toml for git repo https://github.com/ian-h-chamberlain/borrowck_examples written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ian-h-chamberlain/borrowck_examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa2018709aefc2c01a052fd0bec01cd98eb5d9d1e2903d4edca11391afa26742
[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" "aa2018709aefc2c01a052fd0bec01cd98eb5d9d1e2903d4edca11391afa26742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa2018709aefc2c01a052fd0bec01cd98eb5d9d1e2903d4edca11391afa26742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa2018709aefc2c01a052fd0bec01cd98eb5d9d1e2903d4edca11391afa26742", kill_on_drop: false }`
[INFO] [stdout] aa2018709aefc2c01a052fd0bec01cd98eb5d9d1e2903d4edca11391afa26742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79155da7b21aaf39a5d007e1912692d198b0d026e98c8b8e1329e000b1202b24
[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" "79155da7b21aaf39a5d007e1912692d198b0d026e98c8b8e1329e000b1202b24", kill_on_drop: false }`
[INFO] [stderr]    Compiling borrowck_lightning_talk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0499]: cannot borrow `foo` as mutable more than once at a time
[INFO] [stdout]   --> src/borrow.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 6  |     let bar = &mut foo;
[INFO] [stdout]    |               -------- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 10 |         let baz = &mut foo;
[INFO] [stdout]    |                   ^^^^^^^^ second mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 15 |     *bar += 1;
[INFO] [stdout]    |     --------- first borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `my_string` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> src/borrow.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let ref1 = &mut my_string;
[INFO] [stdout]    |                -------------- mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 26 |     let ref2 = &my_string;
[INFO] [stdout]    |                ^^^^^^^^^^ immutable borrow occurs here
[INFO] [stdout] 27 | 
[INFO] [stdout] 28 |     *ref1 = String::from("foo");
[INFO] [stdout]    |     ----- mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `my_string` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/borrow.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let ref1 = &my_string;
[INFO] [stdout]    |                ---------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 40 |     let ref3 = &mut my_string;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 44 |     println!("Example 3: {}, {}", *ref1, *ref2);
[INFO] [stdout]    |                                   ----- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `my_string` does not live long enough
[INFO] [stdout]   --> src/borrow.rs:53:16
[INFO] [stdout]    |
[INFO] [stdout] 53 |         ref1 = &mut my_string;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ borrowed value does not live long enough
[INFO] [stdout] 54 |     }
[INFO] [stdout]    |     - `my_string` dropped here while still borrowed
[INFO] [stdout] 55 | 
[INFO] [stdout] 56 |     *ref1 = String::from("my fair lady");
[INFO] [stdout]    |     ----- borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0499, E0502, E0597.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `borrowck_lightning_talk`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "79155da7b21aaf39a5d007e1912692d198b0d026e98c8b8e1329e000b1202b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79155da7b21aaf39a5d007e1912692d198b0d026e98c8b8e1329e000b1202b24", kill_on_drop: false }`
[INFO] [stdout] 79155da7b21aaf39a5d007e1912692d198b0d026e98c8b8e1329e000b1202b24
