[INFO] cloning repository https://github.com/babalolajnr/heap-simulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/babalolajnr/heap-simulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2Fheap-simulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2Fheap-simulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eee971de8221dd9dddda2400088b348fa2d8f8e7
[INFO] checking babalolajnr/heap-simulation against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2Fheap-simulation" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/babalolajnr/heap-simulation
[INFO] finished tweaking git repo https://github.com/babalolajnr/heap-simulation
[INFO] tweaked toml for git repo https://github.com/babalolajnr/heap-simulation written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/babalolajnr/heap-simulation on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/babalolajnr/heap-simulation 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36498756b2b34ab5c2314bbe8b15849375882074ca1120506d7afe4c3c9b64b0
[INFO] running `Command { std: "docker" "start" "-a" "36498756b2b34ab5c2314bbe8b15849375882074ca1120506d7afe4c3c9b64b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36498756b2b34ab5c2314bbe8b15849375882074ca1120506d7afe4c3c9b64b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36498756b2b34ab5c2314bbe8b15849375882074ca1120506d7afe4c3c9b64b0", kill_on_drop: false }`
[INFO] [stdout] 36498756b2b34ab5c2314bbe8b15849375882074ca1120506d7afe4c3c9b64b0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65ae37876d8906a45496e0183dc83eadf9dc33e58441873e0fc3550e941cac04
[INFO] running `Command { std: "docker" "start" "-a" "65ae37876d8906a45496e0183dc83eadf9dc33e58441873e0fc3550e941cac04", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking piston-float v1.0.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.7
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling x11-dl v2.20.0
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.1
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking piston-viewport v1.0.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking shader_version v0.7.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.44/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking piston2d-graphics v0.39.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[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" "65ae37876d8906a45496e0183dc83eadf9dc33e58441873e0fc3550e941cac04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ae37876d8906a45496e0183dc83eadf9dc33e58441873e0fc3550e941cac04", kill_on_drop: false }`
[INFO] [stdout] 65ae37876d8906a45496e0183dc83eadf9dc33e58441873e0fc3550e941cac04
