[INFO] cloning repository https://github.com/josephg/bp-to-png
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/josephg/bp-to-png" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosephg%2Fbp-to-png", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosephg%2Fbp-to-png'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ca7462528a901aea08bd712050fb994b6f9b222
[INFO] checking josephg/bp-to-png against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosephg%2Fbp-to-png" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/josephg/bp-to-png on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/josephg/bp-to-png
[INFO] finished tweaking git repo https://github.com/josephg/bp-to-png
[INFO] tweaked toml for git repo https://github.com/josephg/bp-to-png written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/josephg/bp-to-png already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 621b547999a8525dd4e58acc3be42afdfcb891ed2f8be0398dad9bd237ab730c
[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" "621b547999a8525dd4e58acc3be42afdfcb891ed2f8be0398dad9bd237ab730c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "621b547999a8525dd4e58acc3be42afdfcb891ed2f8be0398dad9bd237ab730c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "621b547999a8525dd4e58acc3be42afdfcb891ed2f8be0398dad9bd237ab730c", kill_on_drop: false }`
[INFO] [stdout] 621b547999a8525dd4e58acc3be42afdfcb891ed2f8be0398dad9bd237ab730c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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] f38ad0f66c814645292679427af61b7536d7bb2217cf9497a78ae9b72e43f0de
[INFO] running `Command { std: "docker" "start" "-a" "f38ad0f66c814645292679427af61b7536d7bb2217cf9497a78ae9b72e43f0de", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking inflate v0.4.2
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking serde_json v1.0.20
[INFO] [stderr]     Checking rustpng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.12s
[INFO] running `Command { std: "docker" "inspect" "f38ad0f66c814645292679427af61b7536d7bb2217cf9497a78ae9b72e43f0de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f38ad0f66c814645292679427af61b7536d7bb2217cf9497a78ae9b72e43f0de", kill_on_drop: false }`
[INFO] [stdout] f38ad0f66c814645292679427af61b7536d7bb2217cf9497a78ae9b72e43f0de