[INFO] fetching crate serde07 0.7.0...
[INFO] checking serde07-0.7.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate serde07 0.7.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate serde07 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 serde07 0.7.0
[INFO] finished tweaking crates.io crate serde07 0.7.0
[INFO] tweaked toml for crates.io crate serde07 0.7.0 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7341cdd7b0f3d8b574b3ff69aca7035ed58e9a41b41cf96c6f20104bbcaa9b2d
[INFO] running `Command { std: "docker" "start" "-a" "7341cdd7b0f3d8b574b3ff69aca7035ed58e9a41b41cf96c6f20104bbcaa9b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7341cdd7b0f3d8b574b3ff69aca7035ed58e9a41b41cf96c6f20104bbcaa9b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7341cdd7b0f3d8b574b3ff69aca7035ed58e9a41b41cf96c6f20104bbcaa9b2d", kill_on_drop: false }`
[INFO] [stdout] 7341cdd7b0f3d8b574b3ff69aca7035ed58e9a41b41cf96c6f20104bbcaa9b2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 61aae255562d47c98087b7fe14060c909c3e85252de0838b4cb14d5a18b4c0c7
[INFO] running `Command { std: "docker" "start" "-a" "61aae255562d47c98087b7fe14060c909c3e85252de0838b4cb14d5a18b4c0c7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking serde07 v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "61aae255562d47c98087b7fe14060c909c3e85252de0838b4cb14d5a18b4c0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61aae255562d47c98087b7fe14060c909c3e85252de0838b4cb14d5a18b4c0c7", kill_on_drop: false }`
[INFO] [stdout] 61aae255562d47c98087b7fe14060c909c3e85252de0838b4cb14d5a18b4c0c7