[INFO] cloning repository https://github.com/calkas/r_tank_battle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/calkas/r_tank_battle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalkas%2Fr_tank_battle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalkas%2Fr_tank_battle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e18aac2352450886d1d0cd82092ee812bbf6334
[INFO] checking calkas/r_tank_battle against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalkas%2Fr_tank_battle" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/calkas/r_tank_battle
[INFO] finished tweaking git repo https://github.com/calkas/r_tank_battle
[INFO] tweaked toml for git repo https://github.com/calkas/r_tank_battle written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/calkas/r_tank_battle on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/calkas/r_tank_battle 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11a201faa90ceb6a0020476a10862a078e0d378ea2346a7795c669173f277be5
[INFO] running `Command { std: "docker" "start" "-a" "11a201faa90ceb6a0020476a10862a078e0d378ea2346a7795c669173f277be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11a201faa90ceb6a0020476a10862a078e0d378ea2346a7795c669173f277be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a201faa90ceb6a0020476a10862a078e0d378ea2346a7795c669173f277be5", kill_on_drop: false }`
[INFO] [stdout] 11a201faa90ceb6a0020476a10862a078e0d378ea2346a7795c669173f277be5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85d5a6739a5d0f91ee197f481a35b4bd9ec1337c23288972ed5477e7bfcb8897
[INFO] running `Command { std: "docker" "start" "-a" "85d5a6739a5d0f91ee197f481a35b4bd9ec1337c23288972ed5477e7bfcb8897", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling syn v1.0.108
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking piston-float v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking piston-viewport v1.0.2
[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]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking spin v0.9.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking libloading v0.6.7
[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" "85d5a6739a5d0f91ee197f481a35b4bd9ec1337c23288972ed5477e7bfcb8897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d5a6739a5d0f91ee197f481a35b4bd9ec1337c23288972ed5477e7bfcb8897", kill_on_drop: false }`
[INFO] [stdout] 85d5a6739a5d0f91ee197f481a35b4bd9ec1337c23288972ed5477e7bfcb8897