[INFO] fetching crate renetcode 0.0.10...
[INFO] checking renetcode-0.0.10 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate renetcode 0.0.10 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate renetcode 0.0.10 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 crates.io crate renetcode 0.0.10
[INFO] finished tweaking crates.io crate renetcode 0.0.10
[INFO] tweaked toml for crates.io crate renetcode 0.0.10 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate renetcode 0.0.10 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] a3e387eaa368f4428c87d2cd8ceac5cf4eacdfff357ea1924ec164e51b096063
[INFO] running `Command { std: "docker" "start" "-a" "a3e387eaa368f4428c87d2cd8ceac5cf4eacdfff357ea1924ec164e51b096063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3e387eaa368f4428c87d2cd8ceac5cf4eacdfff357ea1924ec164e51b096063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3e387eaa368f4428c87d2cd8ceac5cf4eacdfff357ea1924ec164e51b096063", kill_on_drop: false }`
[INFO] [stdout] a3e387eaa368f4428c87d2cd8ceac5cf4eacdfff357ea1924ec164e51b096063
[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] 6d678fe7c1540491ce985a177778a5d01f16f5678e19208f38815b0fd9de9728
[INFO] running `Command { std: "docker" "start" "-a" "6d678fe7c1540491ce985a177778a5d01f16f5678e19208f38815b0fd9de9728", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking renetcode v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `NETCODE_MAX_PACKET_BYTES` is imported redundantly
[INFO] [stdout]    --> src/client.rs:377:48
[INFO] [stdout]     |
[INFO] [stdout] 377 |     use crate::{crypto::generate_random_bytes, NETCODE_MAX_PACKET_BYTES};
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 378 |
[INFO] [stdout] 379 |     use super::*;
[INFO] [stdout]     |         -------- the item `NETCODE_MAX_PACKET_BYTES` is already imported here
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "6d678fe7c1540491ce985a177778a5d01f16f5678e19208f38815b0fd9de9728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d678fe7c1540491ce985a177778a5d01f16f5678e19208f38815b0fd9de9728", kill_on_drop: false }`
[INFO] [stdout] 6d678fe7c1540491ce985a177778a5d01f16f5678e19208f38815b0fd9de9728
[INFO] checking renetcode-0.0.10 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate renetcode 0.0.10 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate renetcode 0.0.10 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 crates.io crate renetcode 0.0.10
[INFO] finished tweaking crates.io crate renetcode 0.0.10
[INFO] tweaked toml for crates.io crate renetcode 0.0.10 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate renetcode 0.0.10 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] bd8d054e68b865dd04817a4a8645b635960b8a6edd9ec42a918ec882b43d7ff5
[INFO] running `Command { std: "docker" "start" "-a" "bd8d054e68b865dd04817a4a8645b635960b8a6edd9ec42a918ec882b43d7ff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd8d054e68b865dd04817a4a8645b635960b8a6edd9ec42a918ec882b43d7ff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8d054e68b865dd04817a4a8645b635960b8a6edd9ec42a918ec882b43d7ff5", kill_on_drop: false }`
[INFO] [stdout] bd8d054e68b865dd04817a4a8645b635960b8a6edd9ec42a918ec882b43d7ff5
[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] 87c94e7148cd682a0adeeb9d6000ce36a4f303ca907d97d19bacebbe168a083a
[INFO] running `Command { std: "docker" "start" "-a" "87c94e7148cd682a0adeeb9d6000ce36a4f303ca907d97d19bacebbe168a083a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking renetcode v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `NETCODE_MAX_PACKET_BYTES` is imported redundantly
[INFO] [stdout]    --> src/client.rs:377:48
[INFO] [stdout]     |
[INFO] [stdout] 377 |     use crate::{crypto::generate_random_bytes, NETCODE_MAX_PACKET_BYTES};
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 378 |
[INFO] [stdout] 379 |     use super::*;
[INFO] [stdout]     |         -------- the item `NETCODE_MAX_PACKET_BYTES` is already imported here
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.03s
[INFO] running `Command { std: "docker" "inspect" "87c94e7148cd682a0adeeb9d6000ce36a4f303ca907d97d19bacebbe168a083a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87c94e7148cd682a0adeeb9d6000ce36a4f303ca907d97d19bacebbe168a083a", kill_on_drop: false }`
[INFO] [stdout] 87c94e7148cd682a0adeeb9d6000ce36a4f303ca907d97d19bacebbe168a083a