[INFO] updating cached repository brankeye/banker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/brankeye/banker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/brankeye/banker" "work/ex/beta-1.38-1/sources/1.37.0/gh/brankeye/banker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/brankeye/banker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/brankeye/banker" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/brankeye/banker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/brankeye/banker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8b823ff127c5ea31082b3209587cbc601257effc
[INFO] sha for GitHub repo brankeye/banker: 8b823ff127c5ea31082b3209587cbc601257effc
[INFO] validating manifest of brankeye/banker on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of brankeye/banker on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing brankeye/banker
[INFO] finished frobbing brankeye/banker
[INFO] frobbed toml for brankeye/banker written to work/ex/beta-1.38-1/sources/1.37.0/gh/brankeye/banker/Cargo.toml
[INFO] started frobbing brankeye/banker
[INFO] finished frobbing brankeye/banker
[INFO] frobbed toml for brankeye/banker written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/brankeye/banker/Cargo.toml
[INFO] crate brankeye/banker already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing brankeye/banker against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/brankeye/banker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 55d3ce09338920972b08933114bd86a2fc5b0bbe0d2c69261aa97741941ffb14
[INFO] running `"docker" "start" "-a" "55d3ce09338920972b08933114bd86a2fc5b0bbe0d2c69261aa97741941ffb14"`
[INFO] [stderr]    Compiling serde v1.0.26
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling banker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/bank/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/database/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `account`
[INFO] [stderr]   --> src/bank/mod.rs:40:22
[INFO] [stderr]    |
[INFO] [stderr] 40 |         for (id, ref account) in self.accounts.iter() {
[INFO] [stderr]    |                      ^^^^^^^ help: consider prefixing with an underscore: `_account`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/database/mod.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |                 if let Err(err) = file.read_to_string(&mut data) {
[INFO] [stderr]    |                            ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/database/mod.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |             Err(err) => Err(DbError::FileDoesNotExist),
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/identity/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]  --> src/bank/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     id: Uuid, 
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]  --> src/bank/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/database/mod.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         fs::remove_file(self.path(key));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         accounts.add(id, &account);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.49s
[INFO] running `"docker" "inspect" "55d3ce09338920972b08933114bd86a2fc5b0bbe0d2c69261aa97741941ffb14"`
[INFO] running `"docker" "rm" "-f" "55d3ce09338920972b08933114bd86a2fc5b0bbe0d2c69261aa97741941ffb14"`
[INFO] [stdout] 55d3ce09338920972b08933114bd86a2fc5b0bbe0d2c69261aa97741941ffb14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/brankeye/banker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 99034a39954d5ad0c0e978bd22280da746d4cc533035f26f3155d5836372d6dd
[INFO] running `"docker" "start" "-a" "99034a39954d5ad0c0e978bd22280da746d4cc533035f26f3155d5836372d6dd"`
[INFO] [stderr]    Compiling banker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/bank/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/database/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `default` found for type `account::Account` in the current scope
[INFO] [stderr]   --> src/bank/mod.rs:60:32
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let account = Account::default();
[INFO] [stderr]    |                                ^^^^^^^ function or associated item not found in `account::Account`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/account/mod.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub struct Account {
[INFO] [stderr]    | ------------------ function or associated item `default` not found for this
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr]    = note: the following trait defines an item `default`, perhaps you need to implement it:
[INFO] [stderr]            candidate #1: `std::default::Default`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `default` found for type `account::Account` in the current scope
[INFO] [stderr]   --> src/account/mod.rs:70:36
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub struct Account {
[INFO] [stderr]    | ------------------ function or associated item `default` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 70 |         let mut account = Account::default();
[INFO] [stderr]    |                                    ^^^^^^^ function or associated item not found in `account::Account`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr]    = note: the following trait defines an item `default`, perhaps you need to implement it:
[INFO] [stderr]            candidate #1: `std::default::Default`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `banker`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         accounts.add(id, &account);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "99034a39954d5ad0c0e978bd22280da746d4cc533035f26f3155d5836372d6dd"`
[INFO] running `"docker" "rm" "-f" "99034a39954d5ad0c0e978bd22280da746d4cc533035f26f3155d5836372d6dd"`
[INFO] [stdout] 99034a39954d5ad0c0e978bd22280da746d4cc533035f26f3155d5836372d6dd