[INFO] fetching crate pwntools 0.2.0...
[INFO] testing pwntools-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate pwntools 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate pwntools 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pwntools 0.2.0
[INFO] finished tweaking crates.io crate pwntools 0.2.0
[INFO] tweaked toml for crates.io crate pwntools 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate pwntools 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.2
[INFO] [stderr]   Downloaded os_str_bytes v2.4.0
[INFO] [stderr]   Downloaded clap v3.0.0-beta.2
[INFO] [stderr]   Downloaded textwrap v0.12.1
[INFO] [stderr]   Downloaded elf-utilities v0.2.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0c986aa91cc17b6ba54ad6644c7bd21a41ff94273097536d515e4a3ddd5dc46
[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" "d0c986aa91cc17b6ba54ad6644c7bd21a41ff94273097536d515e4a3ddd5dc46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0c986aa91cc17b6ba54ad6644c7bd21a41ff94273097536d515e4a3ddd5dc46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c986aa91cc17b6ba54ad6644c7bd21a41ff94273097536d515e4a3ddd5dc46", kill_on_drop: false }`
[INFO] [stdout] d0c986aa91cc17b6ba54ad6644c7bd21a41ff94273097536d515e4a3ddd5dc46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20eb094bcf76e97b6ec1dda911a51d1d72453a1ae5ba30506017473f2b42930c
[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" "20eb094bcf76e97b6ec1dda911a51d1d72453a1ae5ba30506017473f2b42930c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling elf-utilities v0.2.8
[INFO] [stderr]    Compiling pwntools v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]   --> src/process.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     child: Child,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.77s
[INFO] running `Command { std: "docker" "inspect" "20eb094bcf76e97b6ec1dda911a51d1d72453a1ae5ba30506017473f2b42930c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eb094bcf76e97b6ec1dda911a51d1d72453a1ae5ba30506017473f2b42930c", kill_on_drop: false }`
[INFO] [stdout] 20eb094bcf76e97b6ec1dda911a51d1d72453a1ae5ba30506017473f2b42930c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", 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] 370597e117aca3b311804c7006ddcd05b0de6c70381b0951ce65a48b65de314f
[INFO] running `Command { std: "docker" "start" "-a" "370597e117aca3b311804c7006ddcd05b0de6c70381b0951ce65a48b65de314f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]   --> src/process.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     child: Child,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling pwntools v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]   --> src/process.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     child: Child,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.52s
[INFO] running `Command { std: "docker" "inspect" "370597e117aca3b311804c7006ddcd05b0de6c70381b0951ce65a48b65de314f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "370597e117aca3b311804c7006ddcd05b0de6c70381b0951ce65a48b65de314f", kill_on_drop: false }`
[INFO] [stdout] 370597e117aca3b311804c7006ddcd05b0de6c70381b0951ce65a48b65de314f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] 03d476b5d4225197be3b4333cb9a1690a6ccbb64153ea2d6611f3cfaf49514d3
[INFO] running `Command { std: "docker" "start" "-a" "03d476b5d4225197be3b4333cb9a1690a6ccbb64153ea2d6611f3cfaf49514d3", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `child`
[INFO] [stderr]   --> src/process.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     child: Child,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `pwntools` (lib) generated 1 warning
[INFO] [stderr] warning: `pwntools` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pwntools-ff9253d093800d03)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pwntools
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - pwn (line 10) - compile ... ok
[INFO] [stdout] test src/lib.rs - process (line 7) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03d476b5d4225197be3b4333cb9a1690a6ccbb64153ea2d6611f3cfaf49514d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d476b5d4225197be3b4333cb9a1690a6ccbb64153ea2d6611f3cfaf49514d3", kill_on_drop: false }`
[INFO] [stdout] 03d476b5d4225197be3b4333cb9a1690a6ccbb64153ea2d6611f3cfaf49514d3