[INFO] cloning repository https://github.com/Gelbpunkt/zangy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gelbpunkt/zangy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGelbpunkt%2Fzangy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGelbpunkt%2Fzangy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4853c551bca782fac87797178baeb4f3138d82ff
[INFO] checking Gelbpunkt/zangy against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGelbpunkt%2Fzangy" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gelbpunkt/zangy on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Gelbpunkt/zangy
[INFO] finished tweaking git repo https://github.com/Gelbpunkt/zangy
[INFO] tweaked toml for git repo https://github.com/Gelbpunkt/zangy written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Gelbpunkt/zangy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e161345659c61323cee6cc6d1055f7da34eec1979eae7ee743d44f2f3203484
[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" "5e161345659c61323cee6cc6d1055f7da34eec1979eae7ee743d44f2f3203484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e161345659c61323cee6cc6d1055f7da34eec1979eae7ee743d44f2f3203484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e161345659c61323cee6cc6d1055f7da34eec1979eae7ee743d44f2f3203484", kill_on_drop: false }`
[INFO] [stdout] 5e161345659c61323cee6cc6d1055f7da34eec1979eae7ee743d44f2f3203484
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] bc4f7dffe79d5e747a3263b878dfe632e469fa2dd7229a2588adc43add954f76
[INFO] running `Command { std: "docker" "start" "-a" "bc4f7dffe79d5e747a3263b878dfe632e469fa2dd7229a2588adc43add954f76", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling pyo3 v0.13.2 (https://github.com/PyO3/pyo3#88d86a65)
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking combine v4.5.2
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]    Compiling pyo3-macros-backend v0.13.2 (https://github.com/PyO3/pyo3#88d86a65)
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling pyo3-macros v0.13.2 (https://github.com/PyO3/pyo3#88d86a65)
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking redis v0.20.0 (https://github.com/mitsuhiko/redis-rs#c0057354)
[INFO] [stderr]     Checking zangy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.49s
[INFO] running `Command { std: "docker" "inspect" "bc4f7dffe79d5e747a3263b878dfe632e469fa2dd7229a2588adc43add954f76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4f7dffe79d5e747a3263b878dfe632e469fa2dd7229a2588adc43add954f76", kill_on_drop: false }`
[INFO] [stdout] bc4f7dffe79d5e747a3263b878dfe632e469fa2dd7229a2588adc43add954f76