[INFO] updating cached repository boybird/play
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/boybird/play
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/boybird/play" "work/ex/beta-1.38-1/sources/1.37.0/gh/boybird/play"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/boybird/play'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/boybird/play" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/boybird/play"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/boybird/play'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f66e741e2d88d0e2a363b997cb3d391c258aa20
[INFO] sha for GitHub repo boybird/play: 5f66e741e2d88d0e2a363b997cb3d391c258aa20
[INFO] validating manifest of boybird/play 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 boybird/play 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 boybird/play
[INFO] finished frobbing boybird/play
[INFO] frobbed toml for boybird/play written to work/ex/beta-1.38-1/sources/1.37.0/gh/boybird/play/Cargo.toml
[INFO] started frobbing boybird/play
[INFO] finished frobbing boybird/play
[INFO] frobbed toml for boybird/play written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/boybird/play/Cargo.toml
[INFO] crate boybird/play 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing boybird/play against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/boybird/play:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3f991d7180f7fecc0f79568e541fd5e612f6e6f6e3a3cc010d42a88122c57c03
[INFO] running `"docker" "start" "-a" "3f991d7180f7fecc0f79568e541fd5e612f6e6f6e3a3cc010d42a88122c57c03"`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling h2 v0.1.18
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling v_escape_derive v0.5.3
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling v_escape v0.7.2
[INFO] [stderr]    Compiling v_htmlescape v0.4.3
[INFO] [stderr]    Compiling trust-dns-proto v0.6.3
[INFO] [stderr]    Compiling trust-dns-proto v0.5.0
[INFO] [stderr]    Compiling trust-dns-resolver v0.10.3
[INFO] [stderr]    Compiling actix v0.7.9
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling actix-net v0.2.6
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling actix-web v0.7.19
[INFO] [stderr]    Compiling blog2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `http`
[INFO] [stderr]  --> src/main.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use actix_web::{http, middleware, server, App};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let b: MyMap = serde_json::from_str(&s)?;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `config`
[INFO] [stderr]  --> src/routes.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn config(app : App) -> App {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `index`
[INFO] [stderr]   --> src/routes.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn index(_r:& HttpRequest)->impl Responder{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blog`
[INFO] [stderr]   --> src/routes.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn blog(_r:& HttpRequest)->impl Responder{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main2`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn main2() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 15s
[INFO] running `"docker" "inspect" "3f991d7180f7fecc0f79568e541fd5e612f6e6f6e3a3cc010d42a88122c57c03"`
[INFO] running `"docker" "rm" "-f" "3f991d7180f7fecc0f79568e541fd5e612f6e6f6e3a3cc010d42a88122c57c03"`
[INFO] [stdout] 3f991d7180f7fecc0f79568e541fd5e612f6e6f6e3a3cc010d42a88122c57c03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/boybird/play:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a0d393473f843eb0ac3f8605cba499c02f41ca0b5afda6f62a0e6c4808039c87
[INFO] running `"docker" "start" "-a" "a0d393473f843eb0ac3f8605cba499c02f41ca0b5afda6f62a0e6c4808039c87"`
[INFO] [stderr]    Compiling blog2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `serde`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/serde.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `blog2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: struct is never constructed: `Room`
[INFO] [stderr]  --> examples/ws.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Room {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WsProtocolErr`
[INFO] [stderr]   --> examples/ws.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     WsProtocolErr(#[fail(cause)] ws::ProtocolError),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `inner`
[INFO] [stderr]   --> examples/ws.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     inner: std::collections::HashMap::<String,Vec<i32>>,   
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `http`
[INFO] [stderr]  --> src/main.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use actix_web::{http, middleware, server, App};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let b: MyMap = serde_json::from_str(&s)?;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `config`
[INFO] [stderr]  --> src/routes.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn config(app : App) -> App {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `index`
[INFO] [stderr]   --> src/routes.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn index(_r:& HttpRequest)->impl Responder{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blog`
[INFO] [stderr]   --> src/routes.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn blog(_r:& HttpRequest)->impl Responder{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main2`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn main2() {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a0d393473f843eb0ac3f8605cba499c02f41ca0b5afda6f62a0e6c4808039c87"`
[INFO] running `"docker" "rm" "-f" "a0d393473f843eb0ac3f8605cba499c02f41ca0b5afda6f62a0e6c4808039c87"`
[INFO] [stdout] a0d393473f843eb0ac3f8605cba499c02f41ca0b5afda6f62a0e6c4808039c87