[INFO] cloning repository https://github.com/jharrilim/rustler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jharrilim/rustler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjharrilim%2Frustler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjharrilim%2Frustler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 906dba56401c076217b5a994652cb4aa0e6a616e
[INFO] testing jharrilim/rustler against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjharrilim%2Frustler" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jharrilim/rustler on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jharrilim/rustler
[INFO] finished tweaking git repo https://github.com/jharrilim/rustler
[INFO] tweaked toml for git repo https://github.com/jharrilim/rustler written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jharrilim/rustler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21942212859c4397fb198bbcb06c8d8a11ed2ada398f24975c512f2d52b0019c
[INFO] running `Command { std: "docker" "start" "-a" "21942212859c4397fb198bbcb06c8d8a11ed2ada398f24975c512f2d52b0019c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21942212859c4397fb198bbcb06c8d8a11ed2ada398f24975c512f2d52b0019c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21942212859c4397fb198bbcb06c8d8a11ed2ada398f24975c512f2d52b0019c", kill_on_drop: false }`
[INFO] [stdout] 21942212859c4397fb198bbcb06c8d8a11ed2ada398f24975c512f2d52b0019c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a9016e4f13b57c0212ba99d794ac5e663976cdce427c8bbaf069e1d8736b61c
[INFO] running `Command { std: "docker" "start" "-a" "7a9016e4f13b57c0212ba99d794ac5e663976cdce427c8bbaf069e1d8736b61c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IpAddr`, `TcpStream`
[INFO] [stdout]  --> src/http/request.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     IpAddr,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     TcpStream,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::TcpStream`
[INFO] [stdout]  --> src/http/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `add` found for struct `String` in the current scope
[INFO] [stdout]    --> src/http/request.rs:32:23
[INFO] [stdout]     |
[INFO] [stdout] 32  |             msg = msg.add(format!("{}:{}\r\n", k, v).as_str())
[INFO] [stdout]     |                       ^^^ method not found in `String`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 2   | use std::ops::Add;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `add` found for struct `String` in the current scope
[INFO] [stdout]    --> src/http/request.rs:34:19
[INFO] [stdout]     |
[INFO] [stdout] 34  |         msg = msg.add(self.body.as_str());
[INFO] [stdout]     |                   ^^^ method not found in `String`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 2   | use std::ops::Add;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustler` due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7a9016e4f13b57c0212ba99d794ac5e663976cdce427c8bbaf069e1d8736b61c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9016e4f13b57c0212ba99d794ac5e663976cdce427c8bbaf069e1d8736b61c", kill_on_drop: false }`
[INFO] [stdout] 7a9016e4f13b57c0212ba99d794ac5e663976cdce427c8bbaf069e1d8736b61c