[INFO] cloning repository https://github.com/Claireecf/quic-tcp-compare
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Claireecf/quic-tcp-compare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClaireecf%2Fquic-tcp-compare", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClaireecf%2Fquic-tcp-compare'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84390e5eb4db869f98e2025493943a16c35b960d
[INFO] checking Claireecf/quic-tcp-compare against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClaireecf%2Fquic-tcp-compare" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Claireecf/quic-tcp-compare on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Claireecf/quic-tcp-compare
[INFO] finished tweaking git repo https://github.com/Claireecf/quic-tcp-compare
[INFO] tweaked toml for git repo https://github.com/Claireecf/quic-tcp-compare written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Claireecf/quic-tcp-compare 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polyval v0.4.5
[INFO] [stderr]   Downloaded rocket v0.4.11
[INFO] [stderr]   Downloaded cpuid-bool v0.2.0
[INFO] [stderr]   Downloaded fsevent-sys v2.0.1
[INFO] [stderr]   Downloaded aead v0.3.2
[INFO] [stderr]   Downloaded inotify v0.7.1
[INFO] [stderr]   Downloaded aes-gcm v0.8.0
[INFO] [stderr]   Downloaded aes-soft v0.6.4
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded aes v0.6.0
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded aesni v0.10.0
[INFO] [stderr]   Downloaded rocket_codegen v0.4.11
[INFO] [stderr]   Downloaded rocket_contrib v0.4.11
[INFO] [stderr]   Downloaded state v0.4.2
[INFO] [stderr]   Downloaded ctr v0.6.0
[INFO] [stderr]   Downloaded handlebars v1.1.0
[INFO] [stderr]   Downloaded rocket_http v0.4.11
[INFO] [stderr]   Downloaded notify v4.0.17
[INFO] [stderr]   Downloaded toml v0.4.10
[INFO] [stderr]   Downloaded hkdf v0.10.0
[INFO] [stderr]   Downloaded ghash v0.3.1
[INFO] [stderr]   Downloaded pear v0.1.5
[INFO] [stderr]   Downloaded devise_core v0.2.1
[INFO] [stderr]   Downloaded lazycell v1.3.0
[INFO] [stderr]   Downloaded mio-extras v2.0.6
[INFO] [stderr]   Downloaded cookie v0.11.5
[INFO] [stderr]   Downloaded filetime v0.2.17
[INFO] [stderr]   Downloaded devise_codegen v0.2.1
[INFO] [stderr]   Downloaded cipher v0.2.5
[INFO] [stderr]   Downloaded devise v0.2.1
[INFO] [stderr]   Downloaded fsevent v0.4.0
[INFO] [stderr]   Downloaded pear_codegen v0.1.5
[INFO] [stderr]   Downloaded universal-hash v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b60653b194335deba37192e1bc3c68b30e188f78e9889336ed722e12e95aba6
[INFO] running `Command { std: "docker" "start" "-a" "8b60653b194335deba37192e1bc3c68b30e188f78e9889336ed722e12e95aba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b60653b194335deba37192e1bc3c68b30e188f78e9889336ed722e12e95aba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b60653b194335deba37192e1bc3c68b30e188f78e9889336ed722e12e95aba6", kill_on_drop: false }`
[INFO] [stdout] 8b60653b194335deba37192e1bc3c68b30e188f78e9889336ed722e12e95aba6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b6e6c638258786468111a9ad9f77f0021ab71776d5d18aa19c99ccee7bee88c
[INFO] running `Command { std: "docker" "start" "-a" "1b6e6c638258786468111a9ad9f77f0021ab71776d5d18aa19c99ccee7bee88c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1b6e6c638258786468111a9ad9f77f0021ab71776d5d18aa19c99ccee7bee88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b6e6c638258786468111a9ad9f77f0021ab71776d5d18aa19c99ccee7bee88c", kill_on_drop: false }`
[INFO] [stdout] 1b6e6c638258786468111a9ad9f77f0021ab71776d5d18aa19c99ccee7bee88c