[INFO] fetching crate tracing-serde 0.1.2...
[INFO] testing tracing-serde-0.1.2 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate tracing-serde 0.1.2 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate tracing-serde 0.1.2 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdb36f7376e67b0935457b4f0e4bb14ee8122d9d755bf28aed32acab4c7dd7ae
[INFO] running `Command { std: "docker" "start" "-a" "cdb36f7376e67b0935457b4f0e4bb14ee8122d9d755bf28aed32acab4c7dd7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb36f7376e67b0935457b4f0e4bb14ee8122d9d755bf28aed32acab4c7dd7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb36f7376e67b0935457b4f0e4bb14ee8122d9d755bf28aed32acab4c7dd7ae", kill_on_drop: false }`
[INFO] [stdout] cdb36f7376e67b0935457b4f0e4bb14ee8122d9d755bf28aed32acab4c7dd7ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4de9ab07852c5f9b033817fd18ee8809d3a401bb5ce8ecad7627e6e66b747227
[INFO] running `Command { std: "docker" "start" "-a" "4de9ab07852c5f9b033817fd18ee8809d3a401bb5ce8ecad7627e6e66b747227", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling tracing-serde v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.85s
[INFO] running `Command { std: "docker" "inspect" "4de9ab07852c5f9b033817fd18ee8809d3a401bb5ce8ecad7627e6e66b747227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de9ab07852c5f9b033817fd18ee8809d3a401bb5ce8ecad7627e6e66b747227", kill_on_drop: false }`
[INFO] [stdout] 4de9ab07852c5f9b033817fd18ee8809d3a401bb5ce8ecad7627e6e66b747227
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 785f9b823fe9f1002a8445efdae1480bb29fbc55f808deb4fe2c63851b533617
[INFO] running `Command { std: "docker" "start" "-a" "785f9b823fe9f1002a8445efdae1480bb29fbc55f808deb4fe2c63851b533617", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling tracing-serde v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "785f9b823fe9f1002a8445efdae1480bb29fbc55f808deb4fe2c63851b533617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785f9b823fe9f1002a8445efdae1480bb29fbc55f808deb4fe2c63851b533617", kill_on_drop: false }`
[INFO] [stdout] 785f9b823fe9f1002a8445efdae1480bb29fbc55f808deb4fe2c63851b533617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6dc79376c6b0927507e50aa10fbb2194af1965929322e1315672b2fc6b60a827
[INFO] running `Command { std: "docker" "start" "-a" "6dc79376c6b0927507e50aa10fbb2194af1965929322e1315672b2fc6b60a827", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracing_serde-5ba20c72a198bea9)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing-serde
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 67) ... ok
[INFO] [stdout] test src/lib.rs - (line 51) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6dc79376c6b0927507e50aa10fbb2194af1965929322e1315672b2fc6b60a827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc79376c6b0927507e50aa10fbb2194af1965929322e1315672b2fc6b60a827", kill_on_drop: false }`
[INFO] [stdout] 6dc79376c6b0927507e50aa10fbb2194af1965929322e1315672b2fc6b60a827