[INFO] fetching crate preexplorer 0.5.2...
[INFO] checking preexplorer-0.5.2 against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] extracting crate preexplorer 0.5.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate preexplorer 0.5.2 on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preexplorer 0.5.2
[INFO] finished tweaking crates.io crate preexplorer 0.5.2
[INFO] tweaked toml for crates.io crate preexplorer 0.5.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate preexplorer 0.5.2 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded average v0.10.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2fed4edb22b98db312a59245b626e0ddfee12cc2b4a5d72ac01c7b62f1c2a8c
[INFO] running `Command { std: "docker" "start" "-a" "a2fed4edb22b98db312a59245b626e0ddfee12cc2b4a5d72ac01c7b62f1c2a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2fed4edb22b98db312a59245b626e0ddfee12cc2b4a5d72ac01c7b62f1c2a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2fed4edb22b98db312a59245b626e0ddfee12cc2b4a5d72ac01c7b62f1c2a8c", kill_on_drop: false }`
[INFO] [stdout] a2fed4edb22b98db312a59245b626e0ddfee12cc2b4a5d72ac01c7b62f1c2a8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1905a45f4d31caa84f107f5a9bd690d7643b321232e6dd762e03253ae1b72ef
[INFO] running `Command { std: "docker" "start" "-a" "c1905a45f4d31caa84f107f5a9bd690d7643b321232e6dd762e03253ae1b72ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking average v0.10.6
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking preexplorer v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ron v0.6.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.45s
[INFO] running `Command { std: "docker" "inspect" "c1905a45f4d31caa84f107f5a9bd690d7643b321232e6dd762e03253ae1b72ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1905a45f4d31caa84f107f5a9bd690d7643b321232e6dd762e03253ae1b72ef", kill_on_drop: false }`
[INFO] [stdout] c1905a45f4d31caa84f107f5a9bd690d7643b321232e6dd762e03253ae1b72ef