[INFO] fetching crate json2cbor 1.0.0...
[INFO] testing json2cbor-1.0.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate json2cbor 1.0.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate json2cbor 1.0.0 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 json2cbor 1.0.0
[INFO] finished tweaking crates.io crate json2cbor 1.0.0
[INFO] tweaked toml for crates.io crate json2cbor 1.0.0 written to /workspace/builds/worker-104/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] [stderr]     Blocking waiting for file lock on package cache
[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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] d6b745f66f1e540ab11a80fafcf8fbc572e71c41e60080d75154e02ab5ab00cb
[INFO] running `Command { std: "docker" "start" "-a" "d6b745f66f1e540ab11a80fafcf8fbc572e71c41e60080d75154e02ab5ab00cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6b745f66f1e540ab11a80fafcf8fbc572e71c41e60080d75154e02ab5ab00cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6b745f66f1e540ab11a80fafcf8fbc572e71c41e60080d75154e02ab5ab00cb", kill_on_drop: false }`
[INFO] [stdout] d6b745f66f1e540ab11a80fafcf8fbc572e71c41e60080d75154e02ab5ab00cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 1f32ee4f66068141f05f8b996e38e77a3e703eec51bc61bebefb649874b7c627
[INFO] running `Command { std: "docker" "start" "-a" "1f32ee4f66068141f05f8b996e38e77a3e703eec51bc61bebefb649874b7c627", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde-transcode v1.1.1
[INFO] [stderr]    Compiling serde_cbor v0.10.2
[INFO] [stderr]    Compiling json2cbor v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.49s
[INFO] running `Command { std: "docker" "inspect" "1f32ee4f66068141f05f8b996e38e77a3e703eec51bc61bebefb649874b7c627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f32ee4f66068141f05f8b996e38e77a3e703eec51bc61bebefb649874b7c627", kill_on_drop: false }`
[INFO] [stdout] 1f32ee4f66068141f05f8b996e38e77a3e703eec51bc61bebefb649874b7c627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 75fbe5307cc1ee6a28ff8bea7372077c78298d71dca18f39ffeff2903bf92fb3
[INFO] running `Command { std: "docker" "start" "-a" "75fbe5307cc1ee6a28ff8bea7372077c78298d71dca18f39ffeff2903bf92fb3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling json2cbor v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "75fbe5307cc1ee6a28ff8bea7372077c78298d71dca18f39ffeff2903bf92fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75fbe5307cc1ee6a28ff8bea7372077c78298d71dca18f39ffeff2903bf92fb3", kill_on_drop: false }`
[INFO] [stdout] 75fbe5307cc1ee6a28ff8bea7372077c78298d71dca18f39ffeff2903bf92fb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 660ecb13d067c5e3c67f26cd9be21b17ae42ace94d08bbc3bfe274c0d1c828f5
[INFO] running `Command { std: "docker" "start" "-a" "660ecb13d067c5e3c67f26cd9be21b17ae42ace94d08bbc3bfe274c0d1c828f5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json2cbor-5e028ea992951903)
[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" "660ecb13d067c5e3c67f26cd9be21b17ae42ace94d08bbc3bfe274c0d1c828f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660ecb13d067c5e3c67f26cd9be21b17ae42ace94d08bbc3bfe274c0d1c828f5", kill_on_drop: false }`
[INFO] [stdout] 660ecb13d067c5e3c67f26cd9be21b17ae42ace94d08bbc3bfe274c0d1c828f5