[INFO] fetching crate json-ext 0.3.0...
[INFO] testing json-ext-0.3.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate json-ext 0.3.0 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate json-ext 0.3.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json-ext 0.3.0
[INFO] finished tweaking crates.io crate json-ext 0.3.0
[INFO] tweaked toml for crates.io crate json-ext 0.3.0 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 734211365c025e03069fd68474cdfaea83a98cf5e79fe82491c95108ecdcab1a
[INFO] running `Command { std: "docker" "start" "-a" "734211365c025e03069fd68474cdfaea83a98cf5e79fe82491c95108ecdcab1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "734211365c025e03069fd68474cdfaea83a98cf5e79fe82491c95108ecdcab1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734211365c025e03069fd68474cdfaea83a98cf5e79fe82491c95108ecdcab1a", kill_on_drop: false }`
[INFO] [stdout] 734211365c025e03069fd68474cdfaea83a98cf5e79fe82491c95108ecdcab1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efbab46f3c1596ab04037f17a4f8f5e30599f387af5142045521717a21da5086
[INFO] running `Command { std: "docker" "start" "-a" "efbab46f3c1596ab04037f17a4f8f5e30599f387af5142045521717a21da5086", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling json-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.29s
[INFO] running `Command { std: "docker" "inspect" "efbab46f3c1596ab04037f17a4f8f5e30599f387af5142045521717a21da5086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efbab46f3c1596ab04037f17a4f8f5e30599f387af5142045521717a21da5086", kill_on_drop: false }`
[INFO] [stdout] efbab46f3c1596ab04037f17a4f8f5e30599f387af5142045521717a21da5086
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19b5b199a5a9b44c24de5052205f19dcf90fb0423529b0c58b6c5de9dd85d9c2
[INFO] running `Command { std: "docker" "start" "-a" "19b5b199a5a9b44c24de5052205f19dcf90fb0423529b0c58b6c5de9dd85d9c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "19b5b199a5a9b44c24de5052205f19dcf90fb0423529b0c58b6c5de9dd85d9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b5b199a5a9b44c24de5052205f19dcf90fb0423529b0c58b6c5de9dd85d9c2", kill_on_drop: false }`
[INFO] [stdout] 19b5b199a5a9b44c24de5052205f19dcf90fb0423529b0c58b6c5de9dd85d9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3d699f381f0f3b53474cbcfff640a8aa402f3edfe822ea5cea574991cf26fcc
[INFO] running `Command { std: "docker" "start" "-a" "e3d699f381f0f3b53474cbcfff640a8aa402f3edfe822ea5cea574991cf26fcc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_ext-bfa4ca39af9f09cc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test object::test::try_from_and_try_into ... ok
[INFO] [stdout] test object::test::json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests json-ext
[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" "e3d699f381f0f3b53474cbcfff640a8aa402f3edfe822ea5cea574991cf26fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3d699f381f0f3b53474cbcfff640a8aa402f3edfe822ea5cea574991cf26fcc", kill_on_drop: false }`
[INFO] [stdout] e3d699f381f0f3b53474cbcfff640a8aa402f3edfe822ea5cea574991cf26fcc