[INFO] fetching crate tracing_json_span_fields 0.1.1...
[INFO] checking tracing_json_span_fields-0.1.1 against master#8a703520e80d87d4423c01f9d4fbc9e5f6533a02 for pr-154205-1
[INFO] extracting crate tracing_json_span_fields 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tracing_json_span_fields 0.1.1
[INFO] finished tweaking crates.io crate tracing_json_span_fields 0.1.1
[INFO] tweaked toml for crates.io crate tracing_json_span_fields 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing_json_span_fields 0.1.1 on toolchain 8a703520e80d87d4423c01f9d4fbc9e5f6533a02
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d04d6c59945a59923e1f0dd1ae020bfb5fd7860c52067176cf1bdbba6df2d48
[INFO] running `Command { std: "docker" "start" "-a" "3d04d6c59945a59923e1f0dd1ae020bfb5fd7860c52067176cf1bdbba6df2d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d04d6c59945a59923e1f0dd1ae020bfb5fd7860c52067176cf1bdbba6df2d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d04d6c59945a59923e1f0dd1ae020bfb5fd7860c52067176cf1bdbba6df2d48", kill_on_drop: false }`
[INFO] [stdout] 3d04d6c59945a59923e1f0dd1ae020bfb5fd7860c52067176cf1bdbba6df2d48
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5b41396749812d93a825b7e22d1ae89cac8185c2aaa40bf7d3bdfe1fca9760b
[INFO] running `Command { std: "docker" "start" "-a" "e5b41396749812d93a825b7e22d1ae89cac8185c2aaa40bf7d3bdfe1fca9760b", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling num-conv v0.2.1
[INFO] [stderr]    Compiling time-core v0.1.8
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]     Checking deranged v0.5.8
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking tracing_json_span_fields v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.74s
[INFO] running `Command { std: "docker" "inspect" "e5b41396749812d93a825b7e22d1ae89cac8185c2aaa40bf7d3bdfe1fca9760b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b41396749812d93a825b7e22d1ae89cac8185c2aaa40bf7d3bdfe1fca9760b", kill_on_drop: false }`
[INFO] [stdout] e5b41396749812d93a825b7e22d1ae89cac8185c2aaa40bf7d3bdfe1fca9760b