[INFO] cloning repository https://github.com/jmpesp/async_io_packet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmpesp/async_io_packet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmpesp%2Fasync_io_packet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmpesp%2Fasync_io_packet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47ea5914abfa89c7131da850802b15f897dd9ef3
[INFO] checking jmpesp/async_io_packet against master#023084804e5e8ea42877451c2b3030e7050281cc for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmpesp%2Fasync_io_packet" "/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/jmpesp/async_io_packet on toolchain 023084804e5e8ea42877451c2b3030e7050281cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+023084804e5e8ea42877451c2b3030e7050281cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmpesp/async_io_packet
[INFO] finished tweaking git repo https://github.com/jmpesp/async_io_packet
[INFO] tweaked toml for git repo https://github.com/jmpesp/async_io_packet written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jmpesp/async_io_packet 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" "+023084804e5e8ea42877451c2b3030e7050281cc" "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 jmpesp/async_io_packet against try#3b6ef522ec6da5b39fa0cf004b820c15884319db for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmpesp%2Fasync_io_packet" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmpesp/async_io_packet on toolchain 3b6ef522ec6da5b39fa0cf004b820c15884319db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmpesp/async_io_packet
[INFO] finished tweaking git repo https://github.com/jmpesp/async_io_packet
[INFO] tweaked toml for git repo https://github.com/jmpesp/async_io_packet written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jmpesp/async_io_packet 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" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "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 proc-macro2 v1.0.45
[INFO] [stderr]   Downloaded curve25519-dalek v4.0.0-pre.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4c59c57e4ece719653ac45507e58485207acc9fc305b938486b71cc59c5e20b
[INFO] running `Command { std: "docker" "start" "-a" "f4c59c57e4ece719653ac45507e58485207acc9fc305b938486b71cc59c5e20b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4c59c57e4ece719653ac45507e58485207acc9fc305b938486b71cc59c5e20b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c59c57e4ece719653ac45507e58485207acc9fc305b938486b71cc59c5e20b", kill_on_drop: false }`
[INFO] [stdout] f4c59c57e4ece719653ac45507e58485207acc9fc305b938486b71cc59c5e20b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47fd0a31c3e1e9b815d9d6d18f7c9da2ff500f631b16512db2b3025b52c26b6a
[INFO] running `Command { std: "docker" "start" "-a" "47fd0a31c3e1e9b815d9d6d18f7c9da2ff500f631b16512db2b3025b52c26b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.45
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.45/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 rustc_version v0.4.0
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "47fd0a31c3e1e9b815d9d6d18f7c9da2ff500f631b16512db2b3025b52c26b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fd0a31c3e1e9b815d9d6d18f7c9da2ff500f631b16512db2b3025b52c26b6a", kill_on_drop: false }`
[INFO] [stdout] 47fd0a31c3e1e9b815d9d6d18f7c9da2ff500f631b16512db2b3025b52c26b6a