[INFO] fetching crate monte-carlo-tree-search 0.3.0...
[INFO] checking monte-carlo-tree-search-0.3.0 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate monte-carlo-tree-search 0.3.0 into /workspace/builds/worker-7-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate monte-carlo-tree-search 0.3.0 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "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" "+38c2997544af84fe301d600d6896397738163002" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bce2023fb875d449ec3d8d4b0890f0845d5f1efe50f676fcaa29205cb5659991
[INFO] running `Command { std: "docker" "start" "-a" "bce2023fb875d449ec3d8d4b0890f0845d5f1efe50f676fcaa29205cb5659991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bce2023fb875d449ec3d8d4b0890f0845d5f1efe50f676fcaa29205cb5659991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce2023fb875d449ec3d8d4b0890f0845d5f1efe50f676fcaa29205cb5659991", kill_on_drop: false }`
[INFO] [stdout] bce2023fb875d449ec3d8d4b0890f0845d5f1efe50f676fcaa29205cb5659991
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6083bbdb17e97e7d541f494a8742f9026e9b3824f2e4c3579a54a7b9c9f071a
[INFO] running `Command { std: "docker" "start" "-a" "c6083bbdb17e97e7d541f494a8742f9026e9b3824f2e4c3579a54a7b9c9f071a", 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 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]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking monte-carlo-tree-search v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] [FMTARGS] {"crate":"monte_carlo_tree_search","loc":"/rustc/38c2997544af84fe301d600d6896397738163002/library/core/src/panic.rs:94:23","p":2,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0}
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[INFO] [stderr] [FMTARGS] {"crate":"connect_four","loc":"tests/connect-four.rs:118:26","p":3,"ph":2,"wa":0,"pa":0,"a":2,"pos":2,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":2,"a_opt":2,"sz_no_dedup":32,"sz_old":32,"sz_opt":32}
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.41s
[INFO] running `Command { std: "docker" "inspect" "c6083bbdb17e97e7d541f494a8742f9026e9b3824f2e4c3579a54a7b9c9f071a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6083bbdb17e97e7d541f494a8742f9026e9b3824f2e4c3579a54a7b9c9f071a", kill_on_drop: false }`
[INFO] [stdout] c6083bbdb17e97e7d541f494a8742f9026e9b3824f2e4c3579a54a7b9c9f071a