[INFO] cloning repository https://github.com/RandomNoun7/scenario1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RandomNoun7/scenario1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRandomNoun7%2Fscenario1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRandomNoun7%2Fscenario1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c226a97d8cc2cb056cf234b7e183bfb7fc849fc
[INFO] checking RandomNoun7/scenario1 against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRandomNoun7%2Fscenario1" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RandomNoun7/scenario1 on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RandomNoun7/scenario1
[INFO] finished tweaking git repo https://github.com/RandomNoun7/scenario1
[INFO] tweaked toml for git repo https://github.com/RandomNoun7/scenario1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RandomNoun7/scenario1 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" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking RandomNoun7/scenario1 against try#80d5fe37e16a0befb4128414cb6a11d544788c0a for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRandomNoun7%2Fscenario1" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RandomNoun7/scenario1 on toolchain 80d5fe37e16a0befb4128414cb6a11d544788c0a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RandomNoun7/scenario1
[INFO] finished tweaking git repo https://github.com/RandomNoun7/scenario1
[INFO] tweaked toml for git repo https://github.com/RandomNoun7/scenario1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/RandomNoun7/scenario1 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" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2276430b9dc57cdf938fe592d2bcbd6752900eacc4cb7419a1be9caa31d3693
[INFO] running `Command { std: "docker" "start" "-a" "a2276430b9dc57cdf938fe592d2bcbd6752900eacc4cb7419a1be9caa31d3693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2276430b9dc57cdf938fe592d2bcbd6752900eacc4cb7419a1be9caa31d3693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2276430b9dc57cdf938fe592d2bcbd6752900eacc4cb7419a1be9caa31d3693", kill_on_drop: false }`
[INFO] [stdout] a2276430b9dc57cdf938fe592d2bcbd6752900eacc4cb7419a1be9caa31d3693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08538a5538907dd3089cf43d91a827b4c980691717d5a6e0487468d70e57fd0b
[INFO] running `Command { std: "docker" "start" "-a" "08538a5538907dd3089cf43d91a827b4c980691717d5a6e0487468d70e57fd0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking http v0.1.0 (/opt/rustwide/workdir/http)
[INFO] [stderr]     Checking tcpclient v0.1.0 (/opt/rustwide/workdir/tcpclient)
[INFO] [stderr]     Checking scenario1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> http/src/httprequest.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tcpserver v0.1.0 (/opt/rustwide/workdir/tcpserver)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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] error: aborting due to 1 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] running `Command { std: "docker" "inspect" "08538a5538907dd3089cf43d91a827b4c980691717d5a6e0487468d70e57fd0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08538a5538907dd3089cf43d91a827b4c980691717d5a6e0487468d70e57fd0b", kill_on_drop: false }`
[INFO] [stdout] 08538a5538907dd3089cf43d91a827b4c980691717d5a6e0487468d70e57fd0b