[INFO] fetching crate monte-carlo-tree-search 0.3.0...
[INFO] checking monte-carlo-tree-search-0.3.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate monte-carlo-tree-search 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate monte-carlo-tree-search 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate monte-carlo-tree-search 0.3.0
[INFO] tweaked toml for crates.io crate monte-carlo-tree-search 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate monte-carlo-tree-search 0.3.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate monte-carlo-tree-search 0.3.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tic-tac-toe-board v0.2.2
[INFO] [stderr]   Downloaded getrandom v0.3.0
[INFO] [stderr]   Downloaded connect-four-solver v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be35492226afae61f5b2466cc0b7c4edbe31a0027fc44df8db64005339c1078e
[INFO] running `Command { std: "docker" "start" "-a" "be35492226afae61f5b2466cc0b7c4edbe31a0027fc44df8db64005339c1078e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be35492226afae61f5b2466cc0b7c4edbe31a0027fc44df8db64005339c1078e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be35492226afae61f5b2466cc0b7c4edbe31a0027fc44df8db64005339c1078e", kill_on_drop: false }`
[INFO] [stdout] be35492226afae61f5b2466cc0b7c4edbe31a0027fc44df8db64005339c1078e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43a677b9be12f50012b3d81c2ae402c7fd527377c49a8a4ceef3fa4db3248682
[INFO] running `Command { std: "docker" "start" "-a" "43a677b9be12f50012b3d81c2ae402c7fd527377c49a8a4ceef3fa4db3248682", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling zerocopy v0.8.14
[INFO] [stderr]    Compiling getrandom v0.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking connect-four-solver v0.2.4
[INFO] [stderr]     Checking tic-tac-toe-board v0.2.2
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking rand_core v0.9.0
[INFO] [stderr] error: could not compile `rand_core` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/8c32e313cccf7df531e2d49ffb8227bb92304aee/bin/rustc --crate-name rand_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="os_rng"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("os_rng", "serde", "std"))' -C metadata=9b8fa89642781992 -C extra-filename=-7d8f04194b93b4d5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern getrandom=/opt/rustwide/target/debug/deps/libgetrandom-cd73193e33b93ef4.rmeta --extern zerocopy=/opt/rustwide/target/debug/deps/libzerocopy-c30b5c5c52ff969a.rmeta --cap-lints allow --cap-lints=forbid` (never executed)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "43a677b9be12f50012b3d81c2ae402c7fd527377c49a8a4ceef3fa4db3248682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43a677b9be12f50012b3d81c2ae402c7fd527377c49a8a4ceef3fa4db3248682", kill_on_drop: false }`
[INFO] [stdout] 43a677b9be12f50012b3d81c2ae402c7fd527377c49a8a4ceef3fa4db3248682