[INFO] fetching crate serde_builder 0.2.0...
[INFO] testing serde_builder-0.2.0 against master#d933cf483edf1605142ac6899ff32536c0ad8b22 for pr-150933
[INFO] extracting crate serde_builder 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate serde_builder 0.2.0
[INFO] finished tweaking crates.io crate serde_builder 0.2.0
[INFO] tweaked toml for crates.io crate serde_builder 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_builder 0.2.0 on toolchain d933cf483edf1605142ac6899ff32536c0ad8b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde_builder 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.64
[INFO] [stderr]   Downloaded itoa v1.0.8
[INFO] [stderr]   Downloaded concat-arrays v0.1.2
[INFO] [stderr]   Downloaded thiserror v1.0.43
[INFO] [stderr]   Downloaded ryu v1.0.14
[INFO] [stderr]   Downloaded quote v1.0.29
[INFO] [stderr]   Downloaded serde_json v1.0.100
[INFO] [stderr]   Downloaded unicode-ident v1.0.10
[INFO] [stderr]   Downloaded thiserror-impl v1.0.43
[INFO] [stderr]   Downloaded serde v1.0.171
[INFO] [stderr]   Downloaded syn v2.0.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0d5f39b5f3d5e3e06c5076b3693a12364bec7e9e90793f624b9dba70407d5b4
[INFO] running `Command { std: "docker" "start" "-a" "e0d5f39b5f3d5e3e06c5076b3693a12364bec7e9e90793f624b9dba70407d5b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0d5f39b5f3d5e3e06c5076b3693a12364bec7e9e90793f624b9dba70407d5b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d5f39b5f3d5e3e06c5076b3693a12364bec7e9e90793f624b9dba70407d5b4", kill_on_drop: false }`
[INFO] [stdout] e0d5f39b5f3d5e3e06c5076b3693a12364bec7e9e90793f624b9dba70407d5b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c48ba8f007d133fe55a69c8a6990349b806064c27428a3fe05b5abd400c2abc
[INFO] running `Command { std: "docker" "start" "-a" "4c48ba8f007d133fe55a69c8a6990349b806064c27428a3fe05b5abd400c2abc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]    Compiling concat-arrays v0.1.2
[INFO] [stderr]    Compiling serde_builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "4c48ba8f007d133fe55a69c8a6990349b806064c27428a3fe05b5abd400c2abc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c48ba8f007d133fe55a69c8a6990349b806064c27428a3fe05b5abd400c2abc", kill_on_drop: false }`
[INFO] [stdout] 4c48ba8f007d133fe55a69c8a6990349b806064c27428a3fe05b5abd400c2abc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dd25dbc94eeca965caf096ff72590e68e16107d1a78eaae06e19f29eddb9fb3
[INFO] running `Command { std: "docker" "start" "-a" "5dd25dbc94eeca965caf096ff72590e68e16107d1a78eaae06e19f29eddb9fb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]    Compiling itoa v1.0.8
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling serde_builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `Command { std: "docker" "inspect" "5dd25dbc94eeca965caf096ff72590e68e16107d1a78eaae06e19f29eddb9fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dd25dbc94eeca965caf096ff72590e68e16107d1a78eaae06e19f29eddb9fb3", kill_on_drop: false }`
[INFO] [stdout] 5dd25dbc94eeca965caf096ff72590e68e16107d1a78eaae06e19f29eddb9fb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dc3c185fd6e9e9ddd34e1e85410db731b0b8fd035fdab234f5a1a54003d15c6
[INFO] running `Command { std: "docker" "start" "-a" "2dc3c185fd6e9e9ddd34e1e85410db731b0b8fd035fdab234f5a1a54003d15c6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_builder-f08a2c53f99d82c9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_builder
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dc3c185fd6e9e9ddd34e1e85410db731b0b8fd035fdab234f5a1a54003d15c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc3c185fd6e9e9ddd34e1e85410db731b0b8fd035fdab234f5a1a54003d15c6", kill_on_drop: false }`
[INFO] [stdout] 2dc3c185fd6e9e9ddd34e1e85410db731b0b8fd035fdab234f5a1a54003d15c6