[INFO] cloning repository https://github.com/Akanoa/KV-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akanoa/KV-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkanoa%2FKV-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkanoa%2FKV-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2141d5f04bad36d307426949ed0fdc463ae22e1f
[INFO] checking Akanoa/KV-lab against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkanoa%2FKV-lab" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Akanoa/KV-lab
[INFO] finished tweaking git repo https://github.com/Akanoa/KV-lab
[INFO] tweaked toml for git repo https://github.com/Akanoa/KV-lab written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Akanoa/KV-lab on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Akanoa/KV-lab 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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.79
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.79
[INFO] [stderr]   Downloaded iana-time-zone v0.1.51
[INFO] [stderr]   Downloaded actix-web-codegen v4.1.0
[INFO] [stderr]   Downloaded actix-files v0.6.2
[INFO] [stderr]   Downloaded paste v1.0.9
[INFO] [stderr]   Downloaded actix-session v0.7.2
[INFO] [stderr]   Downloaded time v0.3.15
[INFO] [stderr]   Downloaded cxx-build v1.0.79
[INFO] [stderr]   Downloaded aes v0.8.1
[INFO] [stderr]   Downloaded serde v1.0.146
[INFO] [stderr]   Downloaded aead v0.5.1
[INFO] [stderr]   Downloaded actix-web v4.2.1
[INFO] [stderr]   Downloaded cxx v1.0.79
[INFO] [stderr]   Downloaded cookie v0.16.1
[INFO] [stderr]   Downloaded actix-http v3.2.2
[INFO] [stderr]   Downloaded serde_derive v1.0.146
[INFO] [stderr]   Downloaded bytestring v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8da6fdf25f6d9ebde35fe6ec423ca33b292735b1970e8347a1b4269c1b19d8e3
[INFO] running `Command { std: "docker" "start" "-a" "8da6fdf25f6d9ebde35fe6ec423ca33b292735b1970e8347a1b4269c1b19d8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8da6fdf25f6d9ebde35fe6ec423ca33b292735b1970e8347a1b4269c1b19d8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da6fdf25f6d9ebde35fe6ec423ca33b292735b1970e8347a1b4269c1b19d8e3", kill_on_drop: false }`
[INFO] [stdout] 8da6fdf25f6d9ebde35fe6ec423ca33b292735b1970e8347a1b4269c1b19d8e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2f7acb60bdb134f8bc5983302ac41c26f42b6ac1bf88e69d7392579a9f6577f
[INFO] running `Command { std: "docker" "start" "-a" "b2f7acb60bdb134f8bc5983302ac41c26f42b6ac1bf88e69d7392579a9f6577f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.146
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling serde v1.0.146
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling rustls v0.20.7
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b2f7acb60bdb134f8bc5983302ac41c26f42b6ac1bf88e69d7392579a9f6577f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2f7acb60bdb134f8bc5983302ac41c26f42b6ac1bf88e69d7392579a9f6577f", kill_on_drop: false }`
[INFO] [stdout] b2f7acb60bdb134f8bc5983302ac41c26f42b6ac1bf88e69d7392579a9f6577f
