[INFO] updating cached repository abeyonalaja/rust-users
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/abeyonalaja/rust-users
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/abeyonalaja/rust-users" "work/ex/beta-1.38-1/sources/1.37.0/gh/abeyonalaja/rust-users"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/abeyonalaja/rust-users'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/abeyonalaja/rust-users" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abeyonalaja/rust-users"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abeyonalaja/rust-users'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6de49b15a787224afe94f315b4f5d4f20fb6e52f
[INFO] sha for GitHub repo abeyonalaja/rust-users: 6de49b15a787224afe94f315b4f5d4f20fb6e52f
[INFO] validating manifest of abeyonalaja/rust-users 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 abeyonalaja/rust-users 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 abeyonalaja/rust-users
[INFO] finished frobbing abeyonalaja/rust-users
[INFO] frobbed toml for abeyonalaja/rust-users written to work/ex/beta-1.38-1/sources/1.37.0/gh/abeyonalaja/rust-users/Cargo.toml
[INFO] started frobbing abeyonalaja/rust-users
[INFO] finished frobbing abeyonalaja/rust-users
[INFO] frobbed toml for abeyonalaja/rust-users written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/abeyonalaja/rust-users/Cargo.toml
[INFO] crate abeyonalaja/rust-users 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing abeyonalaja/rust-users 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/abeyonalaja/rust-users:/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] f6731a7a8978e5c70ba31d7862c250e81535717cb3fb33cbb6c370125840a3b3
[INFO] running `"docker" "start" "-a" "f6731a7a8978e5c70ba31d7862c250e81535717cb3fb33cbb6c370125840a3b3"`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling groupable v0.2.0
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling crypto-mac v0.6.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling pbkdf2 v0.2.3
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling scan_fmt v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling bson v0.13.0
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling textnonce v0.6.5
[INFO] [stderr]    Compiling mongodb v0.3.12
[INFO] [stderr]    Compiling rust-users v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `JsonBody`, `MediaType`, `MiddlewareResult`, `Request`, `Response`
[INFO] [stderr]  --> src/main.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use nickel::{Nickel, JsonBody, HttpRouter, Request, Response, MiddlewareResult, MediaType};
[INFO] [stderr]   |                      ^^^^^^^^              ^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]  --> src/main.rs:9:39
[INFO] [stderr]   |
[INFO] [stderr] 9 |     router.get("/users", middleware!{|request, response|
[INFO] [stderr]   |                                       ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/main.rs:12:45
[INFO] [stderr]    |
[INFO] [stderr] 12 |     router.post("/users/new", middleware! {|request, response|
[INFO] [stderr]    |                                             ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/main.rs:16:47
[INFO] [stderr]    |
[INFO] [stderr] 16 |     router.delete("/users/:id", middleware! {|request, response|
[INFO] [stderr]    |                                               ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     server.listen("127.0.0.1:9000");
[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 1m 58s
[INFO] running `"docker" "inspect" "f6731a7a8978e5c70ba31d7862c250e81535717cb3fb33cbb6c370125840a3b3"`
[INFO] running `"docker" "rm" "-f" "f6731a7a8978e5c70ba31d7862c250e81535717cb3fb33cbb6c370125840a3b3"`
[INFO] [stdout] f6731a7a8978e5c70ba31d7862c250e81535717cb3fb33cbb6c370125840a3b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/abeyonalaja/rust-users:/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] 645426da88fba159bfd2c4ff120ff0e2cd0d709630656587a0ea77fc7699ff9a
[INFO] running `"docker" "start" "-a" "645426da88fba159bfd2c4ff120ff0e2cd0d709630656587a0ea77fc7699ff9a"`
[INFO] [stderr]    Compiling rust-users v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `JsonBody`, `MediaType`, `MiddlewareResult`, `Request`, `Response`
[INFO] [stderr]  --> src/main.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use nickel::{Nickel, JsonBody, HttpRouter, Request, Response, MiddlewareResult, MediaType};
[INFO] [stderr]   |                      ^^^^^^^^              ^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]  --> src/main.rs:9:39
[INFO] [stderr]   |
[INFO] [stderr] 9 |     router.get("/users", middleware!{|request, response|
[INFO] [stderr]   |                                       ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/main.rs:12:45
[INFO] [stderr]    |
[INFO] [stderr] 12 |     router.post("/users/new", middleware! {|request, response|
[INFO] [stderr]    |                                             ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/main.rs:16:47
[INFO] [stderr]    |
[INFO] [stderr] 16 |     router.delete("/users/:id", middleware! {|request, response|
[INFO] [stderr]    |                                               ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     server.listen("127.0.0.1:9000");
[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 0.88s
[INFO] running `"docker" "inspect" "645426da88fba159bfd2c4ff120ff0e2cd0d709630656587a0ea77fc7699ff9a"`
[INFO] running `"docker" "rm" "-f" "645426da88fba159bfd2c4ff120ff0e2cd0d709630656587a0ea77fc7699ff9a"`
[INFO] [stdout] 645426da88fba159bfd2c4ff120ff0e2cd0d709630656587a0ea77fc7699ff9a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/abeyonalaja/rust-users:/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"`
[INFO] [stdout] ea62c3bc4e907876924ab9d5e03a86b0a17622d8d78a642f1bcb274e23267fb2
[INFO] running `"docker" "start" "-a" "ea62c3bc4e907876924ab9d5e03a86b0a17622d8d78a642f1bcb274e23267fb2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_users-0cb1fc53ee68b0bc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ea62c3bc4e907876924ab9d5e03a86b0a17622d8d78a642f1bcb274e23267fb2"`
[INFO] running `"docker" "rm" "-f" "ea62c3bc4e907876924ab9d5e03a86b0a17622d8d78a642f1bcb274e23267fb2"`
[INFO] [stdout] ea62c3bc4e907876924ab9d5e03a86b0a17622d8d78a642f1bcb274e23267fb2