[INFO] cloning repository https://github.com/Tredici/rust-tcp-vpn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tredici/rust-tcp-vpn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTredici%2Frust-tcp-vpn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTredici%2Frust-tcp-vpn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3800afc5757e75e44cb2259e26b765f3546e72d8
[INFO] checking Tredici/rust-tcp-vpn against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTredici%2Frust-tcp-vpn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tredici/rust-tcp-vpn on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tredici/rust-tcp-vpn
[INFO] finished tweaking git repo https://github.com/Tredici/rust-tcp-vpn
[INFO] tweaked toml for git repo https://github.com/Tredici/rust-tcp-vpn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tredici/rust-tcp-vpn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a8f1f0fd35e19162c4a5e1d58a8d96d0714a619e15151fe59e7e13931729f2b
[INFO] running `Command { std: "docker" "start" "-a" "2a8f1f0fd35e19162c4a5e1d58a8d96d0714a619e15151fe59e7e13931729f2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a8f1f0fd35e19162c4a5e1d58a8d96d0714a619e15151fe59e7e13931729f2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8f1f0fd35e19162c4a5e1d58a8d96d0714a619e15151fe59e7e13931729f2b", kill_on_drop: false }`
[INFO] [stdout] 2a8f1f0fd35e19162c4a5e1d58a8d96d0714a619e15151fe59e7e13931729f2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e02cdb58394b09984e9acbdf0330d4c38f9f30bd478df5778777d66ff80fbbe
[INFO] running `Command { std: "docker" "start" "-a" "2e02cdb58394b09984e9acbdf0330d4c38f9f30bd478df5778777d66ff80fbbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling rust-tcp-vpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking anstream v0.6.12
[INFO] [stderr]     Checking clap_builder v4.5.1
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking ctrlc v3.4.2
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]     Checking clap v4.5.1
[INFO] [stdout] warning: the item `ctrlc` is imported redundantly
[INFO] [stdout]  --> src/signals.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ctrlc;
[INFO] [stdout]   |     ^^^^^ the item `ctrlc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ctrlc` is imported redundantly
[INFO] [stdout]  --> src/signals.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ctrlc;
[INFO] [stdout]   |     ^^^^^ the item `ctrlc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "2e02cdb58394b09984e9acbdf0330d4c38f9f30bd478df5778777d66ff80fbbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e02cdb58394b09984e9acbdf0330d4c38f9f30bd478df5778777d66ff80fbbe", kill_on_drop: false }`
[INFO] [stdout] 2e02cdb58394b09984e9acbdf0330d4c38f9f30bd478df5778777d66ff80fbbe
[INFO] checking Tredici/rust-tcp-vpn against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTredici%2Frust-tcp-vpn" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tredici/rust-tcp-vpn on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tredici/rust-tcp-vpn
[INFO] finished tweaking git repo https://github.com/Tredici/rust-tcp-vpn
[INFO] tweaked toml for git repo https://github.com/Tredici/rust-tcp-vpn written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tredici/rust-tcp-vpn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 283029df8cd470f4106f525c88ba915ac9b88d384e80ab6ec49b06d0d47b0de2
[INFO] running `Command { std: "docker" "start" "-a" "283029df8cd470f4106f525c88ba915ac9b88d384e80ab6ec49b06d0d47b0de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "283029df8cd470f4106f525c88ba915ac9b88d384e80ab6ec49b06d0d47b0de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "283029df8cd470f4106f525c88ba915ac9b88d384e80ab6ec49b06d0d47b0de2", kill_on_drop: false }`
[INFO] [stdout] 283029df8cd470f4106f525c88ba915ac9b88d384e80ab6ec49b06d0d47b0de2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 035b0801ea481829508d826960659bc20e0d89ff74fdd65356aac9b6bba2709b
[INFO] running `Command { std: "docker" "start" "-a" "035b0801ea481829508d826960659bc20e0d89ff74fdd65356aac9b6bba2709b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]    Compiling rust-tcp-vpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking anstream v0.6.12
[INFO] [stderr]     Checking clap_builder v4.5.1
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]     Checking ctrlc v3.4.2
[INFO] [stderr]     Checking clap v4.5.1
[INFO] [stdout] warning: the item `ctrlc` is imported redundantly
[INFO] [stdout]  --> src/signals.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ctrlc;
[INFO] [stdout]   |     ^^^^^ the item `ctrlc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ctrlc` is imported redundantly
[INFO] [stdout]  --> src/signals.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ctrlc;
[INFO] [stdout]   |     ^^^^^ the item `ctrlc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.11s
[INFO] running `Command { std: "docker" "inspect" "035b0801ea481829508d826960659bc20e0d89ff74fdd65356aac9b6bba2709b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "035b0801ea481829508d826960659bc20e0d89ff74fdd65356aac9b6bba2709b", kill_on_drop: false }`
[INFO] [stdout] 035b0801ea481829508d826960659bc20e0d89ff74fdd65356aac9b6bba2709b