[INFO] fetching crate arrayvec 0.7.0...
[INFO] checking arrayvec-0.7.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate arrayvec 0.7.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate arrayvec 0.7.0 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arrayvec 0.7.0
[INFO] finished tweaking crates.io crate arrayvec 0.7.0
[INFO] tweaked toml for crates.io crate arrayvec 0.7.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75447991661c75e128dd2e328985aa57f88c44f6262abca86308b5944eec9e5f
[INFO] running `Command { std: "docker" "start" "-a" "75447991661c75e128dd2e328985aa57f88c44f6262abca86308b5944eec9e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75447991661c75e128dd2e328985aa57f88c44f6262abca86308b5944eec9e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75447991661c75e128dd2e328985aa57f88c44f6262abca86308b5944eec9e5f", kill_on_drop: false }`
[INFO] [stdout] 75447991661c75e128dd2e328985aa57f88c44f6262abca86308b5944eec9e5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ac2a15459eb3b77edb24f4191db58a00baa3e46c95bea40eafbee2a58adb050
[INFO] running `Command { std: "docker" "start" "-a" "2ac2a15459eb3b77edb24f4191db58a00baa3e46c95bea40eafbee2a58adb050", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking arrayvec v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_test v1.0.126
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "2ac2a15459eb3b77edb24f4191db58a00baa3e46c95bea40eafbee2a58adb050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac2a15459eb3b77edb24f4191db58a00baa3e46c95bea40eafbee2a58adb050", kill_on_drop: false }`
[INFO] [stdout] 2ac2a15459eb3b77edb24f4191db58a00baa3e46c95bea40eafbee2a58adb050