[INFO] crate polylabel 2.3.1 is already in cache
[INFO] checking polylabel-2.3.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate polylabel 2.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate polylabel 2.3.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polylabel 2.3.1
[INFO] finished tweaking crates.io crate polylabel 2.3.1
[INFO] tweaked toml for crates.io crate polylabel 2.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 646231c9c5ac0afddb080ac86124197c8f0e6e35e6a6767ba5a8cf70066d54f6
[INFO] running `Command { std: "docker" "start" "-a" "646231c9c5ac0afddb080ac86124197c8f0e6e35e6a6767ba5a8cf70066d54f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "646231c9c5ac0afddb080ac86124197c8f0e6e35e6a6767ba5a8cf70066d54f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646231c9c5ac0afddb080ac86124197c8f0e6e35e6a6767ba5a8cf70066d54f6", kill_on_drop: false }`
[INFO] [stdout] 646231c9c5ac0afddb080ac86124197c8f0e6e35e6a6767ba5a8cf70066d54f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c69aaf80981c58d2d15bcb30bd844b86b91bd010ce69694d7068e67224b4d24
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c69aaf80981c58d2d15bcb30bd844b86b91bd010ce69694d7068e67224b4d24", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking pdqselect v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking geographiclib-rs v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rstar v0.8.1
[INFO] [stderr]     Checking geo-types v0.6.0
[INFO] [stderr]     Checking geo v0.14.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking polylabel v2.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "3c69aaf80981c58d2d15bcb30bd844b86b91bd010ce69694d7068e67224b4d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c69aaf80981c58d2d15bcb30bd844b86b91bd010ce69694d7068e67224b4d24", kill_on_drop: false }`
[INFO] [stdout] 3c69aaf80981c58d2d15bcb30bd844b86b91bd010ce69694d7068e67224b4d24