[INFO] cloning repository https://github.com/gilbertw1/mpwc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gilbertw1/mpwc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilbertw1%2Fmpwc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilbertw1%2Fmpwc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f4d34eb75f0e2caeeaadc10a8ebdfc094819817
[INFO] checking gilbertw1/mpwc against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilbertw1%2Fmpwc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gilbertw1/mpwc on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gilbertw1/mpwc
[INFO] finished tweaking git repo https://github.com/gilbertw1/mpwc
[INFO] tweaked toml for git repo https://github.com/gilbertw1/mpwc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/gilbertw1/mpwc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf333223deae8d9ac230bfec51ba0999dbe10e38c919e1cdbd57feb036d7e558
[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" "bf333223deae8d9ac230bfec51ba0999dbe10e38c919e1cdbd57feb036d7e558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf333223deae8d9ac230bfec51ba0999dbe10e38c919e1cdbd57feb036d7e558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf333223deae8d9ac230bfec51ba0999dbe10e38c919e1cdbd57feb036d7e558", kill_on_drop: false }`
[INFO] [stdout] bf333223deae8d9ac230bfec51ba0999dbe10e38c919e1cdbd57feb036d7e558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a5faaa5f1a1d95cdd9e7c61805d62b749452bc1ba8b1e04703da4842e55d69d
[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" "6a5faaa5f1a1d95cdd9e7c61805d62b749452bc1ba8b1e04703da4842e55d69d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling libsodium-sys v0.0.15
[INFO] [stderr]     Checking secstr v0.3.0
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking rpassword v2.0.0
[INFO] [stderr]     Checking clap v2.26.2 (https://github.com/kbknapp/clap-rs.git#569ced1f)
[INFO] [stderr]     Checking rusterpassword v0.2.1 (https://github.com/gilbertw1/rusterpassword#3db73ece)
[INFO] [stderr]     Checking sodiumoxide v0.0.15
[INFO] [stderr]     Checking mpwc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.96s
[INFO] running `Command { std: "docker" "inspect" "6a5faaa5f1a1d95cdd9e7c61805d62b749452bc1ba8b1e04703da4842e55d69d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5faaa5f1a1d95cdd9e7c61805d62b749452bc1ba8b1e04703da4842e55d69d", kill_on_drop: false }`
[INFO] [stdout] 6a5faaa5f1a1d95cdd9e7c61805d62b749452bc1ba8b1e04703da4842e55d69d