[INFO] cloning repository https://github.com/Sxmon17/sniffrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sxmon17/sniffrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSxmon17%2Fsniffrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSxmon17%2Fsniffrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d13db30592e46d9eecdebb632e8d7cb5faa5af6b
[INFO] checking Sxmon17/sniffrs against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSxmon17%2Fsniffrs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sxmon17/sniffrs on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sxmon17/sniffrs
[INFO] finished tweaking git repo https://github.com/Sxmon17/sniffrs
[INFO] tweaked toml for git repo https://github.com/Sxmon17/sniffrs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Sxmon17/sniffrs 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" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Sxmon17/sniffrs against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSxmon17%2Fsniffrs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sxmon17/sniffrs on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sxmon17/sniffrs
[INFO] finished tweaking git repo https://github.com/Sxmon17/sniffrs
[INFO] tweaked toml for git repo https://github.com/Sxmon17/sniffrs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Sxmon17/sniffrs 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" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_sys v0.33.0
[INFO] [stderr]   Downloaded pnet v0.33.0
[INFO] [stderr]   Downloaded pnet_datalink v0.33.0
[INFO] [stderr]   Downloaded pnet_transport v0.33.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c8bd3d3a8ace9b6dc41a540b8a844ec7742b47866cfdc69f96168ec34fe8c2b
[INFO] running `Command { std: "docker" "start" "-a" "2c8bd3d3a8ace9b6dc41a540b8a844ec7742b47866cfdc69f96168ec34fe8c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c8bd3d3a8ace9b6dc41a540b8a844ec7742b47866cfdc69f96168ec34fe8c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8bd3d3a8ace9b6dc41a540b8a844ec7742b47866cfdc69f96168ec34fe8c2b", kill_on_drop: false }`
[INFO] [stdout] 2c8bd3d3a8ace9b6dc41a540b8a844ec7742b47866cfdc69f96168ec34fe8c2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 573b8adb4114f16f50595bf8d54490dcd5e3f440943150afc57eb9b50ff70154
[INFO] running `Command { std: "docker" "start" "-a" "573b8adb4114f16f50595bf8d54490dcd5e3f440943150afc57eb9b50ff70154", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling pnet v0.33.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pnet_base v0.33.0
[INFO] [stderr]     Checking pnet_macros_support v0.33.0
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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] [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" "573b8adb4114f16f50595bf8d54490dcd5e3f440943150afc57eb9b50ff70154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "573b8adb4114f16f50595bf8d54490dcd5e3f440943150afc57eb9b50ff70154", kill_on_drop: false }`
[INFO] [stdout] 573b8adb4114f16f50595bf8d54490dcd5e3f440943150afc57eb9b50ff70154