[INFO] updating cached repository jdmichaud/wgrep2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jdmichaud/wgrep2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jdmichaud/wgrep2" "work/ex/beta-1.38-1/sources/1.37.0/gh/jdmichaud/wgrep2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jdmichaud/wgrep2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jdmichaud/wgrep2" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jdmichaud/wgrep2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jdmichaud/wgrep2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ae922fd86e3cff33d59d17ea5ff82553b70a45b
[INFO] sha for GitHub repo jdmichaud/wgrep2: 8ae922fd86e3cff33d59d17ea5ff82553b70a45b
[INFO] validating manifest of jdmichaud/wgrep2 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 jdmichaud/wgrep2 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 jdmichaud/wgrep2
[INFO] finished frobbing jdmichaud/wgrep2
[INFO] frobbed toml for jdmichaud/wgrep2 written to work/ex/beta-1.38-1/sources/1.37.0/gh/jdmichaud/wgrep2/Cargo.toml
[INFO] started frobbing jdmichaud/wgrep2
[INFO] finished frobbing jdmichaud/wgrep2
[INFO] frobbed toml for jdmichaud/wgrep2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jdmichaud/wgrep2/Cargo.toml
[INFO] crate jdmichaud/wgrep2 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 jdmichaud/wgrep2 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-4/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/jdmichaud/wgrep2:/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] 468a3c4aa62224a157300c9cacffc096b23cb9dce974a63181327d625e0162a8
[INFO] running `"docker" "start" "-a" "468a3c4aa62224a157300c9cacffc096b23cb9dce974a63181327d625e0162a8"`
[INFO] [stderr]    Compiling serde v0.9.11
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.12
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr]    Compiling wgrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: chained comparison operators require parentheses
[INFO] [stderr]   --> src/wglib/server.rs:22:35
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let res = serde_json::from_str<Request>(buffer);
[INFO] [stderr]    |                                   ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: use `::<...>` instead of `<...>` if you meant to specify type arguments
[INFO] [stderr]    = help: or use `(...)` if you meant to specify fn arguments
[INFO] [stderr] 
[INFO] [stderr] error: chained comparison operators require parentheses
[INFO] [stderr]   --> src/wglib/server.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |       res = serde_json::from_str<Request>(buffer);
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: use `::<...>` instead of `<...>` if you meant to specify type arguments
[INFO] [stderr]    = help: or use `(...)` if you meant to specify fn arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0449]: unnecessary visibility qualifier
[INFO] [stderr]   --> src/wglib/server.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn poll<F>(&mut self, closure: F) -> () where F: Fn(Request, Fn(&str)) -> () {
[INFO] [stderr]    |   ^^^ `pub` not permitted here because it's implied
[INFO] [stderr] 
[INFO] [stderr] error[E0449]: unnecessary visibility qualifier
[INFO] [stderr]   --> src/wglib/server.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   pub fn send(&mut self, value: Value) -> () {
[INFO] [stderr]    |   ^^^ `pub` not permitted here because it's implied
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `wglib::buffer`
[INFO] [stderr]  --> src/wglib/request.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use wglib::buffer::*;
[INFO] [stderr]   |            ^^^^^^ could not find `buffer` in `wglib`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `EnumVisitor` in `de`
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^ could not find `EnumVisitor` in `de`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `VariantVisitor` in `de`
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^ could not find `VariantVisitor` in `de`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `request` in this scope
[INFO] [stderr]   --> src/wglib/server.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Ok(request) = res;
[INFO] [stderr]    |        ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected function, found type parameter `F`
[INFO] [stderr]   --> src/wglib/server.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     F(request, self.send);
[INFO] [stderr]    |     ^ not a function
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `request` in this scope
[INFO] [stderr]   --> src/wglib/server.rs:29:7
[INFO] [stderr]    |
[INFO] [stderr] 29 |     F(request, self.send);
[INFO] [stderr]    |       ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `register` in this scope
[INFO] [stderr]   --> src/wglib/request.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |   match register(filename) {
[INFO] [stderr]    |         ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `EnumVisitor` in module `_serde::de`
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^ not found in `_serde::de`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Request` in this scope
[INFO] [stderr]   --> src/main.rs:17:28
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn handle_request(request: Request, send: Fn(FDServer, &str)) -> () {
[INFO] [stderr]    |                            ^^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 10 | use wglib::request::Request;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: struct `Request` is private
[INFO] [stderr]  --> src/wglib/server.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use wglib::request::Request;
[INFO] [stderr]   |                     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(proc_macro)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0726]: implicit elided lifetime not allowed here
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^- help: indicate the anonymous lifetime: `<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0637]: `&` without an explicit lifetime name cannot be used here
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^ explicit lifetime name needed here
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/wglib/count.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/wglib/server.rs:8:26
[INFO] [stderr]   |
[INFO] [stderr] 8 |     where F: Fn(Request, Fn(WGServer, &str)) -> ();
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(WGServer, &str)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/wglib/server.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 |     where F: Fn(Request, Fn(WGServer, &str)) -> ();
[INFO] [stderr]   |                             ^^^^^^^^ help: use `dyn`: `dyn WGServer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/wglib/server.rs:19:68
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn poll<F>(&mut self, closure: F) -> () where F: Fn(Request, Fn(&str)) -> () {
[INFO] [stderr]    |                                                                    ^^^^^^^^ help: use `dyn`: `dyn Fn(&str)`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `wglib::error::*`
[INFO] [stderr]  --> src/wglib/request.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use wglib::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `wglib::buffer::*`
[INFO] [stderr]  --> src/wglib/request.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use wglib::buffer::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Value`
[INFO] [stderr]  --> src/wglib/error.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde_json::Value;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::Value`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use serde_json::Value;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `wglib::count::count`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use wglib::count::count;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:17:43
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn handle_request(request: Request, send: Fn(FDServer, &str)) -> () {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(FDServer, &str)`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]  --> src/wglib/error.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |          ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/wglib/request.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |   verb: &str,
[INFO] [stderr]   |         ^ expected lifetime parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 20 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0106, E0405, E0412, E0423, E0425, E0432, E0433, E0449, E0554...
[INFO] [stderr] For more information about an error, try `rustc --explain E0106`.
[INFO] [stderr] error: Could not compile `wgrep`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "468a3c4aa62224a157300c9cacffc096b23cb9dce974a63181327d625e0162a8"`
[INFO] running `"docker" "rm" "-f" "468a3c4aa62224a157300c9cacffc096b23cb9dce974a63181327d625e0162a8"`
[INFO] [stdout] 468a3c4aa62224a157300c9cacffc096b23cb9dce974a63181327d625e0162a8