[INFO] cloning repository https://github.com/dfockler/rust-toy-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dfockler/rust-toy-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Frust-toy-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Frust-toy-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fca7c454537897ea7c360123ac959b834c10e5f6
[INFO] checking dfockler/rust-toy-server against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfockler%2Frust-toy-server" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dfockler/rust-toy-server on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dfockler/rust-toy-server
[INFO] finished tweaking git repo https://github.com/dfockler/rust-toy-server
[INFO] tweaked toml for git repo https://github.com/dfockler/rust-toy-server written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dfockler/rust-toy-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2f831e21c845396fb0856bfbeed62f753f2df038799e9be1b3437c1e2481d910
[INFO] running `Command { std: "docker" "start" "-a" "2f831e21c845396fb0856bfbeed62f753f2df038799e9be1b3437c1e2481d910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f831e21c845396fb0856bfbeed62f753f2df038799e9be1b3437c1e2481d910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f831e21c845396fb0856bfbeed62f753f2df038799e9be1b3437c1e2481d910", kill_on_drop: false }`
[INFO] [stdout] 2f831e21c845396fb0856bfbeed62f753f2df038799e9be1b3437c1e2481d910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5eb3a100545aef17357fa881b8d66a9fc485a6c07c114542b7a821f6f569525b
[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" "5eb3a100545aef17357fa881b8d66a9fc485a6c07c114542b7a821f6f569525b", kill_on_drop: false }`
[INFO] [stderr]     Checking server v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io::{TcpListener, TcpStream};
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::old_io::{Acceptor, Listener};
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::old_io::File;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/main.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let contents = File::open(&Path::new("index.html")).read_to_end().unwrap();
[INFO] [stdout]    |                                ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io::{TcpListener, TcpStream};
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::old_io::{Acceptor, Listener};
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::old_io::File;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/main.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let contents = File::open(&Path::new("index.html")).read_to_end().unwrap();
[INFO] [stdout]    |                                ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `spawn` found for struct `Thread` in the current scope
[INFO] [stdout]   --> src/main.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 Thread::spawn(move|| {
[INFO] [stdout]    |                         ^^^^^ function or associated item not found in `Thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `server`
[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[E0599]: no function or associated item named `spawn` found for struct `Thread` in the current scope
[INFO] [stdout]   --> src/main.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 Thread::spawn(move|| {
[INFO] [stdout]    |                         ^^^^^ function or associated item not found in `Thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5eb3a100545aef17357fa881b8d66a9fc485a6c07c114542b7a821f6f569525b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eb3a100545aef17357fa881b8d66a9fc485a6c07c114542b7a821f6f569525b", kill_on_drop: false }`
[INFO] [stdout] 5eb3a100545aef17357fa881b8d66a9fc485a6c07c114542b7a821f6f569525b