[INFO] cloning repository https://github.com/lolpro11/kvserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lolpro11/kvserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolpro11%2Fkvserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolpro11%2Fkvserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7e8f91c192bac9da0fbd7c1186c5e7608381e79
[INFO] checking lolpro11/kvserver against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolpro11%2Fkvserver" "/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/lolpro11/kvserver 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/lolpro11/kvserver
[INFO] finished tweaking git repo https://github.com/lolpro11/kvserver
[INFO] tweaked toml for git repo https://github.com/lolpro11/kvserver written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lolpro11/kvserver 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-serde v0.9.0
[INFO] [stderr]   Downloaded tarpc-plugins v0.12.0
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.18.0
[INFO] [stderr]   Downloaded tarpc v0.33.0
[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] 6cc662e42150925ef56f090f64ee4e791bfa6225443910d4a553158f1c330100
[INFO] running `Command { std: "docker" "start" "-a" "6cc662e42150925ef56f090f64ee4e791bfa6225443910d4a553158f1c330100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cc662e42150925ef56f090f64ee4e791bfa6225443910d4a553158f1c330100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc662e42150925ef56f090f64ee4e791bfa6225443910d4a553158f1c330100", kill_on_drop: false }`
[INFO] [stdout] 6cc662e42150925ef56f090f64ee4e791bfa6225443910d4a553158f1c330100
[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] 15920585c13263bb440572b9f4c707ff8466a76cdce711952ff2d5e47eea09d4
[INFO] running `Command { std: "docker" "start" "-a" "15920585c13263bb440572b9f4c707ff8466a76cdce711952ff2d5e47eea09d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.11
[INFO] [stderr]    Compiling tarpc-plugins v0.12.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling pin-project-internal v1.1.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling educe v0.4.23
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking pin-project v1.1.4
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking tokio-serde v0.9.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking opentelemetry_api v0.18.0
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking opentelemetry_sdk v0.18.0
[INFO] [stderr]     Checking opentelemetry v0.18.0
[INFO] [stderr]     Checking tracing-opentelemetry v0.18.0
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking tokio-serde v0.8.0
[INFO] [stderr]     Checking tarpc v0.33.0
[INFO] [stderr]     Checking kvserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `future` is imported redundantly
[INFO] [stdout]  --> src/server.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::{future, prelude::*};
[INFO] [stdout]   |               ^^^^^^  ---------- the item `future` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `future` is imported redundantly
[INFO] [stdout]  --> src/server.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::{future, prelude::*};
[INFO] [stdout]   |               ^^^^^^  ---------- the item `future` 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.11s
[INFO] running `Command { std: "docker" "inspect" "15920585c13263bb440572b9f4c707ff8466a76cdce711952ff2d5e47eea09d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15920585c13263bb440572b9f4c707ff8466a76cdce711952ff2d5e47eea09d4", kill_on_drop: false }`
[INFO] [stdout] 15920585c13263bb440572b9f4c707ff8466a76cdce711952ff2d5e47eea09d4
[INFO] checking lolpro11/kvserver against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolpro11%2Fkvserver" "/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/lolpro11/kvserver 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/lolpro11/kvserver
[INFO] finished tweaking git repo https://github.com/lolpro11/kvserver
[INFO] tweaked toml for git repo https://github.com/lolpro11/kvserver written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lolpro11/kvserver 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] 5a2f96b7430d2d8f97dfb22c033fd58e5bf1241d354b2cf1858c2becc0a644d5
[INFO] running `Command { std: "docker" "start" "-a" "5a2f96b7430d2d8f97dfb22c033fd58e5bf1241d354b2cf1858c2becc0a644d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a2f96b7430d2d8f97dfb22c033fd58e5bf1241d354b2cf1858c2becc0a644d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2f96b7430d2d8f97dfb22c033fd58e5bf1241d354b2cf1858c2becc0a644d5", kill_on_drop: false }`
[INFO] [stdout] 5a2f96b7430d2d8f97dfb22c033fd58e5bf1241d354b2cf1858c2becc0a644d5
[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] 5f15cfb9c46def128075cbf8bb826b4a4244c043bd85f94bef8087acd6b811af
[INFO] running `Command { std: "docker" "start" "-a" "5f15cfb9c46def128075cbf8bb826b4a4244c043bd85f94bef8087acd6b811af", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.11
[INFO] [stderr]    Compiling tarpc-plugins v0.12.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.4
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling educe v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking pin-project v1.1.4
[INFO] [stderr]     Checking tokio-serde v0.9.0
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking opentelemetry_api v0.18.0
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking opentelemetry_sdk v0.18.0
[INFO] [stderr]     Checking opentelemetry v0.18.0
[INFO] [stderr]     Checking tracing-opentelemetry v0.18.0
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking tokio-serde v0.8.0
[INFO] [stderr]     Checking tarpc v0.33.0
[INFO] [stderr]     Checking kvserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `future` is imported redundantly
[INFO] [stdout]  --> src/server.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::{future, prelude::*};
[INFO] [stdout]   |               ^^^^^^  ---------- the item `future` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `future` is imported redundantly
[INFO] [stdout]  --> src/server.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::{future, prelude::*};
[INFO] [stdout]   |               ^^^^^^  ---------- the item `future` 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.82s
[INFO] running `Command { std: "docker" "inspect" "5f15cfb9c46def128075cbf8bb826b4a4244c043bd85f94bef8087acd6b811af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f15cfb9c46def128075cbf8bb826b4a4244c043bd85f94bef8087acd6b811af", kill_on_drop: false }`
[INFO] [stdout] 5f15cfb9c46def128075cbf8bb826b4a4244c043bd85f94bef8087acd6b811af