[INFO] fetching crate distributed_arcade 1.0.0...
[INFO] checking distributed_arcade-1.0.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate distributed_arcade 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate distributed_arcade 1.0.0
[INFO] finished tweaking crates.io crate distributed_arcade 1.0.0
[INFO] tweaked toml for crates.io crate distributed_arcade 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate distributed_arcade 1.0.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate distributed_arcade 1.0.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.6
[INFO] [stderr]   Downloaded axum v0.6.9
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 508ada12c5d25e124a3c676289773ac8637d6e7fdb6c26825c5331365623f5d2
[INFO] running `Command { std: "docker" "start" "-a" "508ada12c5d25e124a3c676289773ac8637d6e7fdb6c26825c5331365623f5d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "508ada12c5d25e124a3c676289773ac8637d6e7fdb6c26825c5331365623f5d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508ada12c5d25e124a3c676289773ac8637d6e7fdb6c26825c5331365623f5d2", kill_on_drop: false }`
[INFO] [stdout] 508ada12c5d25e124a3c676289773ac8637d6e7fdb6c26825c5331365623f5d2
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c3aa0b5c9b943377deb6d985c6bff5d7c2900830977240dc1c33a9b664f737c
[INFO] running `Command { std: "docker" "start" "-a" "5c3aa0b5c9b943377deb6d985c6bff5d7c2900830977240dc1c33a9b664f737c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.64
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]     Checking http-range-header v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]     Checking matchit v0.7.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling axum-core v0.3.2
[INFO] [stderr]    Compiling axum v0.6.9
[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" "5c3aa0b5c9b943377deb6d985c6bff5d7c2900830977240dc1c33a9b664f737c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c3aa0b5c9b943377deb6d985c6bff5d7c2900830977240dc1c33a9b664f737c", kill_on_drop: false }`
[INFO] [stdout] 5c3aa0b5c9b943377deb6d985c6bff5d7c2900830977240dc1c33a9b664f737c