[INFO] cloning repository https://github.com/christopherdumas/microeconomics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/christopherdumas/microeconomics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristopherdumas%2Fmicroeconomics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristopherdumas%2Fmicroeconomics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66660ae85a1e928e4a543ee7e390d98381093eda
[INFO] testing christopherdumas/microeconomics against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristopherdumas%2Fmicroeconomics" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christopherdumas/microeconomics on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/christopherdumas/microeconomics
[INFO] finished tweaking git repo https://github.com/christopherdumas/microeconomics
[INFO] tweaked toml for git repo https://github.com/christopherdumas/microeconomics written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/christopherdumas/microeconomics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mortal v0.2.2
[INFO] [stderr]   Downloaded smallstr v0.2.0
[INFO] [stderr]   Downloaded linefeed v0.6.0
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a3376266298c7dffce29deabf1a51a353a564e423991cf24d253bdd4ec961439
[INFO] running `Command { std: "docker" "start" "-a" "a3376266298c7dffce29deabf1a51a353a564e423991cf24d253bdd4ec961439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3376266298c7dffce29deabf1a51a353a564e423991cf24d253bdd4ec961439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3376266298c7dffce29deabf1a51a353a564e423991cf24d253bdd4ec961439", kill_on_drop: false }`
[INFO] [stdout] a3376266298c7dffce29deabf1a51a353a564e423991cf24d253bdd4ec961439
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fd92d7f5668e7a2b2721ddccbbc045f9a07f0c8829ccf61ae3cb829a56f3a04
[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" "2fd92d7f5668e7a2b2721ddccbbc045f9a07f0c8829ccf61ae3cb829a56f3a04", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling smallstr v0.2.0
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling mortal v0.2.2
[INFO] [stderr]    Compiling linefeed v0.6.0
[INFO] [stderr]    Compiling microeconomics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/preference_list.rs:313:37
[INFO] [stdout]     |
[INFO] [stdout] 271 |   ...                   let my_item = self
[INFO] [stdout]     |  _____________________________________-
[INFO] [stdout] 272 | | ...                       .inventory
[INFO] [stdout]     | |____________________________________- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 313 |   ...                           self.add_item(goal_item.1);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 314 |   ...                           self.inventory.remove(possible_item.0);
[INFO] [stdout]     |                                                       --------------- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `self.inventory` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/preference_list.rs:314:37
[INFO] [stdout]     |
[INFO] [stdout] 271 |   ...                   let my_item = self
[INFO] [stdout]     |  _____________________________________-
[INFO] [stdout] 272 | | ...                       .inventory
[INFO] [stdout]     | |____________________________________- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 314 |   ...                           self.inventory.remove(possible_item.0);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 315 |   ...                           // remove my item from my inventory, add it to theirs
[INFO] [stdout] 316 |   ...                           other_actor.add_item(*possible_item.1);
[INFO] [stdout]     |                                                      ---------------- immutable borrow later used here
[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 E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microeconomics`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2fd92d7f5668e7a2b2721ddccbbc045f9a07f0c8829ccf61ae3cb829a56f3a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd92d7f5668e7a2b2721ddccbbc045f9a07f0c8829ccf61ae3cb829a56f3a04", kill_on_drop: false }`
[INFO] [stdout] 2fd92d7f5668e7a2b2721ddccbbc045f9a07f0c8829ccf61ae3cb829a56f3a04
