[INFO] cloning repository https://github.com/mpycroft/raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mpycroft/raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpycroft%2Fraytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpycroft%2Fraytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dca65f72cb5702907e4ebd2d2787bdc1470f79f4
[INFO] checking mpycroft/raytracer against try#b1375b2484512d46eeace16657e5b4a5450c610b for pr-112743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpycroft%2Fraytracer" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mpycroft/raytracer on toolchain b1375b2484512d46eeace16657e5b4a5450c610b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mpycroft/raytracer
[INFO] finished tweaking git repo https://github.com/mpycroft/raytracer
[INFO] tweaked toml for git repo https://github.com/mpycroft/raytracer written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mpycroft/raytracer 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" "+b1375b2484512d46eeace16657e5b4a5450c610b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 575f2f0a39694ede674b4a7cb261bfbaa37eac9b23dca62bbe8725c69d8bc5a5
[INFO] running `Command { std: "docker" "start" "-a" "575f2f0a39694ede674b4a7cb261bfbaa37eac9b23dca62bbe8725c69d8bc5a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "575f2f0a39694ede674b4a7cb261bfbaa37eac9b23dca62bbe8725c69d8bc5a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575f2f0a39694ede674b4a7cb261bfbaa37eac9b23dca62bbe8725c69d8bc5a5", kill_on_drop: false }`
[INFO] [stdout] 575f2f0a39694ede674b4a7cb261bfbaa37eac9b23dca62bbe8725c69d8bc5a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+b1375b2484512d46eeace16657e5b4a5450c610b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89ff4b8b29a7d86fbb60a5fe5b964ce5a32a979d2a9ec4505c1f2514bda6efd4
[INFO] running `Command { std: "docker" "start" "-a" "89ff4b8b29a7d86fbb60a5fe5b964ce5a32a979d2a9ec4505c1f2514bda6efd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr] thread 'rustc' panicked at 'assertion failed: pos.get() <= self.position()', compiler/rustc_metadata/src/rmeta/encoder.rs:448:9
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] running `Command { std: "docker" "inspect" "89ff4b8b29a7d86fbb60a5fe5b964ce5a32a979d2a9ec4505c1f2514bda6efd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ff4b8b29a7d86fbb60a5fe5b964ce5a32a979d2a9ec4505c1f2514bda6efd4", kill_on_drop: false }`
[INFO] [stdout] 89ff4b8b29a7d86fbb60a5fe5b964ce5a32a979d2a9ec4505c1f2514bda6efd4