[INFO] fetching crate preserves-schema 2.0.0-rc.3...
[INFO] checking preserves-schema-2.0.0-rc.3 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate preserves-schema 2.0.0-rc.3 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate preserves-schema 2.0.0-rc.3 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preserves-schema 2.0.0-rc.3
[INFO] finished tweaking crates.io crate preserves-schema 2.0.0-rc.3
[INFO] tweaked toml for crates.io crate preserves-schema 2.0.0-rc.3 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate preserves-schema 2.0.0-rc.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da3b65757b8b7e4a2ecdc0d32c3dabc2189049caf96fe166ee50b2af4d001a48
[INFO] running `Command { std: "docker" "start" "-a" "da3b65757b8b7e4a2ecdc0d32c3dabc2189049caf96fe166ee50b2af4d001a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da3b65757b8b7e4a2ecdc0d32c3dabc2189049caf96fe166ee50b2af4d001a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3b65757b8b7e4a2ecdc0d32c3dabc2189049caf96fe166ee50b2af4d001a48", kill_on_drop: false }`
[INFO] [stdout] da3b65757b8b7e4a2ecdc0d32c3dabc2189049caf96fe166ee50b2af4d001a48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c515d84c4c700a4c151c45623f5daddc25d06753a8f81909db674e2f4e50799d
[INFO] running `Command { std: "docker" "start" "-a" "c515d84c4c700a4c151c45623f5daddc25d06753a8f81909db674e2f4e50799d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking preserves v2.0.0-rc.2
[INFO] [stderr]     Checking preserves-schema v2.0.0-rc.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.67s
[INFO] running `Command { std: "docker" "inspect" "c515d84c4c700a4c151c45623f5daddc25d06753a8f81909db674e2f4e50799d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c515d84c4c700a4c151c45623f5daddc25d06753a8f81909db674e2f4e50799d", kill_on_drop: false }`
[INFO] [stdout] c515d84c4c700a4c151c45623f5daddc25d06753a8f81909db674e2f4e50799d