[INFO] cloning repository https://github.com/tembolo1284/json_flattener_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tembolo1284/json_flattener_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftembolo1284%2Fjson_flattener_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftembolo1284%2Fjson_flattener_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eac0f1ba0a24a9641ce822b9733e2fe6bb230a0d
[INFO] checking tembolo1284/json_flattener_rust against master#be181dd75c83d72fcc95538e235768bc367b76b9 for pr-140208
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftembolo1284%2Fjson_flattener_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tembolo1284/json_flattener_rust on toolchain be181dd75c83d72fcc95538e235768bc367b76b9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tembolo1284/json_flattener_rust
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/tembolo1284/json_flattener_rust
[INFO] tweaked toml for git repo https://github.com/tembolo1284/json_flattener_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tembolo1284/json_flattener_rust 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" "+be181dd75c83d72fcc95538e235768bc367b76b9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-build-config v0.20.3
[INFO] [stderr]   Downloaded pyo3-macros v0.20.3
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.20.3
[INFO] [stderr]   Downloaded pyo3-ffi v0.20.3
[INFO] [stderr]   Downloaded pyo3 v0.20.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0452e3dc35a8d73892569e9e18a0e0a6a73c227c2368fb5575875cb98a1246d
[INFO] running `Command { std: "docker" "start" "-a" "b0452e3dc35a8d73892569e9e18a0e0a6a73c227c2368fb5575875cb98a1246d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0452e3dc35a8d73892569e9e18a0e0a6a73c227c2368fb5575875cb98a1246d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0452e3dc35a8d73892569e9e18a0e0a6a73c227c2368fb5575875cb98a1246d", kill_on_drop: false }`
[INFO] [stdout] b0452e3dc35a8d73892569e9e18a0e0a6a73c227c2368fb5575875cb98a1246d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62d4d0acfef17e9aaf6f129e88e287296c322a7635662c898609db79ad39fea9
[INFO] running `Command { std: "docker" "start" "-a" "62d4d0acfef17e9aaf6f129e88e287296c322a7635662c898609db79ad39fea9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
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[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]    Compiling portable-atomic v1.11.0
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[INFO] [stderr]    Compiling indoc v2.0.6
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[INFO] [stderr]    Compiling lock_api v0.4.12
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[INFO] [stderr]     Checking linux-raw-sys v0.9.3
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[INFO] [stderr]     Checking tempfile v3.19.0
[INFO] [stderr]    Compiling pyo3-ffi v0.20.3
[INFO] [stderr]    Compiling pyo3 v0.20.3
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]    Compiling pyo3-macros-backend v0.20.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling pyo3-macros v0.20.3
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking json-flattener v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.01s
[INFO] running `Command { std: "docker" "inspect" "62d4d0acfef17e9aaf6f129e88e287296c322a7635662c898609db79ad39fea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d4d0acfef17e9aaf6f129e88e287296c322a7635662c898609db79ad39fea9", kill_on_drop: false }`
[INFO] [stdout] 62d4d0acfef17e9aaf6f129e88e287296c322a7635662c898609db79ad39fea9