[INFO] cloning repository https://github.com/cssivision/shadowsocks-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cssivision/shadowsocks-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcssivision%2Fshadowsocks-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcssivision%2Fshadowsocks-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76e95f70dc48b9a8ad7d82d9d9fefd9b331a7ce6
[INFO] checking cssivision/shadowsocks-rs/76e95f70dc48b9a8ad7d82d9d9fefd9b331a7ce6 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcssivision%2Fshadowsocks-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cssivision/shadowsocks-rs on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cssivision/shadowsocks-rs
[INFO] finished tweaking git repo https://github.com/cssivision/shadowsocks-rs
[INFO] tweaked toml for git repo https://github.com/cssivision/shadowsocks-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cssivision/shadowsocks-rs 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_filter v0.1.0
[INFO] [stderr]   Downloaded toml_edit v0.21.0
[INFO] [stderr]   Downloaded ctr v0.7.0
[INFO] [stderr]   Downloaded chacha20 v0.7.3
[INFO] [stderr]   Downloaded time v0.3.26
[INFO] [stderr]   Downloaded socket2 v0.5.1
[INFO] [stderr]   Downloaded winnow v0.5.26
[INFO] [stderr]   Downloaded toml v0.8.8
[INFO] [stderr]   Downloaded awak v0.2.36
[INFO] [stderr]   Downloaded deranged v0.3.10
[INFO] [stderr]   Downloaded lru_time_cache v0.11.11
[INFO] [stderr]   Downloaded octseq v0.3.1
[INFO] [stderr]   Downloaded smallvec v1.11.2
[INFO] [stderr]   Downloaded dns-resolver v0.2.14
[INFO] [stderr]   Downloaded anstream v0.6.12
[INFO] [stderr]   Downloaded env_logger v0.11.2
[INFO] [stderr]   Downloaded serde_spanned v0.6.4
[INFO] [stderr]   Downloaded cfb-mode v0.7.1
[INFO] [stderr]   Downloaded domain v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da88220c07f817903f9ae43b3c31d69038e97fc9e5a7ad3feaceea0be6a04e40
[INFO] running `Command { std: "docker" "start" "-a" "da88220c07f817903f9ae43b3c31d69038e97fc9e5a7ad3feaceea0be6a04e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da88220c07f817903f9ae43b3c31d69038e97fc9e5a7ad3feaceea0be6a04e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da88220c07f817903f9ae43b3c31d69038e97fc9e5a7ad3feaceea0be6a04e40", kill_on_drop: false }`
[INFO] [stdout] da88220c07f817903f9ae43b3c31d69038e97fc9e5a7ad3feaceea0be6a04e40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ef860243aa7b8d715a4fcd43619acf5be366872af02fef748dc621a01eabaec
[INFO] running `Command { std: "docker" "start" "-a" "5ef860243aa7b8d715a4fcd43619acf5be366872af02fef748dc621a01eabaec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking deranged v0.3.10
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking winnow v0.5.26
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]     Checking octseq v0.3.1
[INFO] [stderr]     Checking lru_time_cache v0.11.11
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking anstream v0.6.12
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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]     Checking indexmap v2.1.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking cipher v0.3.0
[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" "5ef860243aa7b8d715a4fcd43619acf5be366872af02fef748dc621a01eabaec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ef860243aa7b8d715a4fcd43619acf5be366872af02fef748dc621a01eabaec", kill_on_drop: false }`
[INFO] [stdout] 5ef860243aa7b8d715a4fcd43619acf5be366872af02fef748dc621a01eabaec