[INFO] fetching crate test-sampler 0.1.0...
[INFO] building test-sampler-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate test-sampler 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate test-sampler 0.1.0
[INFO] finished tweaking crates.io crate test-sampler 0.1.0
[INFO] tweaked toml for crates.io crate test-sampler 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate test-sampler 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 88 packages to latest compatible versions
[INFO] [stderr]       Adding argmin v0.8.1 (available: v0.11.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 013f4e5422ae396c2d36e20062587d91b25471207a3d809543ed99383ebdce48
[INFO] running `Command { std: "docker" "start" "-a" "013f4e5422ae396c2d36e20062587d91b25471207a3d809543ed99383ebdce48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "013f4e5422ae396c2d36e20062587d91b25471207a3d809543ed99383ebdce48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013f4e5422ae396c2d36e20062587d91b25471207a3d809543ed99383ebdce48", kill_on_drop: false }`
[INFO] [stdout] 013f4e5422ae396c2d36e20062587d91b25471207a3d809543ed99383ebdce48
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6f54f15cdae788cbfa5be8a20237436cd78a9768348645fd13e74955441e94b
[INFO] running `Command { std: "docker" "start" "-a" "e6f54f15cdae788cbfa5be8a20237436cd78a9768348645fd13e74955441e94b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling slog-async v2.8.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling term v1.2.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling is_sorted v0.1.1
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling slog-term v2.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling slog-json v2.6.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling argmin-math v0.3.0
[INFO] [stderr]    Compiling argmin v0.8.1
[INFO] [stderr]    Compiling test-sampler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.34s
[INFO] running `Command { std: "docker" "inspect" "e6f54f15cdae788cbfa5be8a20237436cd78a9768348645fd13e74955441e94b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f54f15cdae788cbfa5be8a20237436cd78a9768348645fd13e74955441e94b", kill_on_drop: false }`
[INFO] [stdout] e6f54f15cdae788cbfa5be8a20237436cd78a9768348645fd13e74955441e94b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1c66d8a68948f6dcff22d7135f1ca36e76ba0b054f71b4d22ed80a6f175ed99
[INFO] running `Command { std: "docker" "start" "-a" "e1c66d8a68948f6dcff22d7135f1ca36e76ba0b054f71b4d22ed80a6f175ed99", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-sampler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "e1c66d8a68948f6dcff22d7135f1ca36e76ba0b054f71b4d22ed80a6f175ed99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c66d8a68948f6dcff22d7135f1ca36e76ba0b054f71b4d22ed80a6f175ed99", kill_on_drop: false }`
[INFO] [stdout] e1c66d8a68948f6dcff22d7135f1ca36e76ba0b054f71b4d22ed80a6f175ed99