[INFO] cloning repository https://github.com/blargg/electoral_systems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blargg/electoral_systems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblargg%2Felectoral_systems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblargg%2Felectoral_systems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37022727566ebbf88ae49641302973ce2b3059eb
[INFO] checking blargg/electoral_systems against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblargg%2Felectoral_systems" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blargg/electoral_systems on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blargg/electoral_systems
[INFO] finished tweaking git repo https://github.com/blargg/electoral_systems
[INFO] tweaked toml for git repo https://github.com/blargg/electoral_systems written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate git repo https://github.com/blargg/electoral_systems already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7a8d33356b53e82b5f2275c04e7e89df25f4211907d4efa3261c68f69a34746
[INFO] running `Command { std: "docker" "start" "-a" "a7a8d33356b53e82b5f2275c04e7e89df25f4211907d4efa3261c68f69a34746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7a8d33356b53e82b5f2275c04e7e89df25f4211907d4efa3261c68f69a34746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7a8d33356b53e82b5f2275c04e7e89df25f4211907d4efa3261c68f69a34746", kill_on_drop: false }`
[INFO] [stdout] a7a8d33356b53e82b5f2275c04e7e89df25f4211907d4efa3261c68f69a34746
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 010d76479deb67f42b4fd93f713a2ee94c3adddd4161e379e8d9aa725f5c5f75
[INFO] running `Command { std: "docker" "start" "-a" "010d76479deb67f42b4fd93f713a2ee94c3adddd4161e379e8d9aa725f5c5f75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking electoral_systems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.07s
[INFO] running `Command { std: "docker" "inspect" "010d76479deb67f42b4fd93f713a2ee94c3adddd4161e379e8d9aa725f5c5f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010d76479deb67f42b4fd93f713a2ee94c3adddd4161e379e8d9aa725f5c5f75", kill_on_drop: false }`
[INFO] [stdout] 010d76479deb67f42b4fd93f713a2ee94c3adddd4161e379e8d9aa725f5c5f75