[INFO] cloning repository https://github.com/drsmile1001/actix-gcd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drsmile1001/actix-gcd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrsmile1001%2Factix-gcd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrsmile1001%2Factix-gcd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f1fcb7ad8b2e94614d24448a37772c7ff9442b7
[INFO] checking drsmile1001/actix-gcd/0f1fcb7ad8b2e94614d24448a37772c7ff9442b7 against master#e9182f195b8505c87c4bd055b9f6e114ccda0981 for pr-144098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrsmile1001%2Factix-gcd" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/drsmile1001/actix-gcd
[INFO] finished tweaking git repo https://github.com/drsmile1001/actix-gcd
[INFO] tweaked toml for git repo https://github.com/drsmile1001/actix-gcd written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/drsmile1001/actix-gcd on toolchain e9182f195b8505c87c4bd055b9f6e114ccda0981
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/drsmile1001/actix-gcd 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" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-utils v0.4.7
[INFO] [stderr]   Downloaded actix-web-codegen v0.1.3
[INFO] [stderr]   Downloaded actix-web v1.0.9
[INFO] [stderr]   Downloaded tokio-signal v0.2.9
[INFO] [stderr]   Downloaded awc v0.2.8
[INFO] [stderr]   Downloaded serde_derive v1.0.156
[INFO] [stderr]   Downloaded serde v1.0.156
[INFO] [stderr]   Downloaded actix-rt v0.2.6
[INFO] [stderr]   Downloaded ahash v0.2.19
[INFO] [stderr]   Downloaded actix-http v0.2.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e55519a9e2b863299d0b001a40f73ce7501281008c0c6dee7a6a6c6dfae9ea86
[INFO] running `Command { std: "docker" "start" "-a" "e55519a9e2b863299d0b001a40f73ce7501281008c0c6dee7a6a6c6dfae9ea86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e55519a9e2b863299d0b001a40f73ce7501281008c0c6dee7a6a6c6dfae9ea86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e55519a9e2b863299d0b001a40f73ce7501281008c0c6dee7a6a6c6dfae9ea86", kill_on_drop: false }`
[INFO] [stdout] e55519a9e2b863299d0b001a40f73ce7501281008c0c6dee7a6a6c6dfae9ea86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 060c5ab14bebcb666070fe8ad32e1ffa393b834daa8b1c6286a687dbd6b2bdb2
[INFO] running `Command { std: "docker" "start" "-a" "060c5ab14bebcb666070fe8ad32e1ffa393b834daa8b1c6286a687dbd6b2bdb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking rand_core v0.3.1
[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" "060c5ab14bebcb666070fe8ad32e1ffa393b834daa8b1c6286a687dbd6b2bdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060c5ab14bebcb666070fe8ad32e1ffa393b834daa8b1c6286a687dbd6b2bdb2", kill_on_drop: false }`
[INFO] [stdout] 060c5ab14bebcb666070fe8ad32e1ffa393b834daa8b1c6286a687dbd6b2bdb2