[INFO] fetching crate tracing-serde 0.1.2...
[INFO] checking tracing-serde-0.1.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate tracing-serde 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tracing-serde 0.1.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-serde 0.1.2
[INFO] finished tweaking crates.io crate tracing-serde 0.1.2
[INFO] tweaked toml for crates.io crate tracing-serde 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19bc5f88d56e040d8325338f8c59d7c2f524f1b836fcbe0c1a0a9ad32958cb15
[INFO] running `Command { std: "docker" "start" "-a" "19bc5f88d56e040d8325338f8c59d7c2f524f1b836fcbe0c1a0a9ad32958cb15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19bc5f88d56e040d8325338f8c59d7c2f524f1b836fcbe0c1a0a9ad32958cb15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19bc5f88d56e040d8325338f8c59d7c2f524f1b836fcbe0c1a0a9ad32958cb15", kill_on_drop: false }`
[INFO] [stdout] 19bc5f88d56e040d8325338f8c59d7c2f524f1b836fcbe0c1a0a9ad32958cb15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d27cb6bf0f3fff99dbd80b9dba3d97aa6aa9953fd52706605b8041c4af2a4a36
[INFO] running `Command { std: "docker" "start" "-a" "d27cb6bf0f3fff99dbd80b9dba3d97aa6aa9953fd52706605b8041c4af2a4a36", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking tracing-serde v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.87s
[INFO] running `Command { std: "docker" "inspect" "d27cb6bf0f3fff99dbd80b9dba3d97aa6aa9953fd52706605b8041c4af2a4a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d27cb6bf0f3fff99dbd80b9dba3d97aa6aa9953fd52706605b8041c4af2a4a36", kill_on_drop: false }`
[INFO] [stdout] d27cb6bf0f3fff99dbd80b9dba3d97aa6aa9953fd52706605b8041c4af2a4a36