[INFO] fetching crate serde_var_export 0.1.0...
[INFO] checking serde_var_export-0.1.0 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate serde_var_export 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate serde_var_export 0.1.0 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_var_export 0.1.0
[INFO] finished tweaking crates.io crate serde_var_export 0.1.0
[INFO] tweaked toml for crates.io crate serde_var_export 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate serde_var_export 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.8
[INFO] [stderr]   Downloaded syn v1.0.14
[INFO] [stderr]   Downloaded thiserror-impl v1.0.9
[INFO] [stderr]   Downloaded thiserror v1.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc508dc55a6e66cb13c5c5dc208bfa6306c00b09ed1b2ff2aa0e86fd8db0b2ea
[INFO] running `Command { std: "docker" "start" "-a" "fc508dc55a6e66cb13c5c5dc208bfa6306c00b09ed1b2ff2aa0e86fd8db0b2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc508dc55a6e66cb13c5c5dc208bfa6306c00b09ed1b2ff2aa0e86fd8db0b2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc508dc55a6e66cb13c5c5dc208bfa6306c00b09ed1b2ff2aa0e86fd8db0b2ea", kill_on_drop: false }`
[INFO] [stdout] fc508dc55a6e66cb13c5c5dc208bfa6306c00b09ed1b2ff2aa0e86fd8db0b2ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9a58d16079a866954adcab8bee3bd4a5c8f3f6a7b58c74917ec71ba4154acb7
[INFO] running `Command { std: "docker" "start" "-a" "a9a58d16079a866954adcab8bee3bd4a5c8f3f6a7b58c74917ec71ba4154acb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking serde_var_export v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.08s
[INFO] running `Command { std: "docker" "inspect" "a9a58d16079a866954adcab8bee3bd4a5c8f3f6a7b58c74917ec71ba4154acb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a58d16079a866954adcab8bee3bd4a5c8f3f6a7b58c74917ec71ba4154acb7", kill_on_drop: false }`
[INFO] [stdout] a9a58d16079a866954adcab8bee3bd4a5c8f3f6a7b58c74917ec71ba4154acb7