[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] checking christopherdumas/microeconomics against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristopherdumas%2Fmicroeconomics" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christopherdumas/microeconomics on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", 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-11/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" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_codegen v0.8.0
[INFO] [stderr]   Downloaded phf_generator v0.8.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.14
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded linefeed v0.6.0
[INFO] [stderr]   Downloaded smallstr v0.2.0
[INFO] [stderr]   Downloaded mortal v0.2.2
[INFO] [stderr]   Downloaded syn v1.0.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4a80e1cac7792008632e243ae26c227b36b2a2256d1d7355b08585cbe2c6834
[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" "e4a80e1cac7792008632e243ae26c227b36b2a2256d1d7355b08585cbe2c6834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4a80e1cac7792008632e243ae26c227b36b2a2256d1d7355b08585cbe2c6834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a80e1cac7792008632e243ae26c227b36b2a2256d1d7355b08585cbe2c6834", kill_on_drop: false }`
[INFO] [stdout] e4a80e1cac7792008632e243ae26c227b36b2a2256d1d7355b08585cbe2c6834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 399514d6fd768f97b11c991c04fed0436e468474fc33af1caf48a1375eab3299
[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" "399514d6fd768f97b11c991c04fed0436e468474fc33af1caf48a1375eab3299", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking 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 structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking mortal v0.2.2
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]     Checking 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] 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] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "399514d6fd768f97b11c991c04fed0436e468474fc33af1caf48a1375eab3299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399514d6fd768f97b11c991c04fed0436e468474fc33af1caf48a1375eab3299", kill_on_drop: false }`
[INFO] [stdout] 399514d6fd768f97b11c991c04fed0436e468474fc33af1caf48a1375eab3299
