[INFO] fetching crate serde 1.0.126...
[INFO] building serde-1.0.126 against master#e9a387d6cf5961a7f2dcb671da3147bd413355c4 for pr-87066-2
[INFO] extracting crate serde 1.0.126 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate serde 1.0.126 on toolchain e9a387d6cf5961a7f2dcb671da3147bd413355c4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e9a387d6cf5961a7f2dcb671da3147bd413355c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde 1.0.126
[INFO] finished tweaking crates.io crate serde 1.0.126
[INFO] tweaked toml for crates.io crate serde 1.0.126 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e9a387d6cf5961a7f2dcb671da3147bd413355c4" "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" "+e9a387d6cf5961a7f2dcb671da3147bd413355c4" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+e9a387d6cf5961a7f2dcb671da3147bd413355c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dec5e153b3202a43962486e5dbb32ae999d6f63ef68626b6160e0581fff5360
[INFO] running `Command { std: "docker" "start" "-a" "8dec5e153b3202a43962486e5dbb32ae999d6f63ef68626b6160e0581fff5360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dec5e153b3202a43962486e5dbb32ae999d6f63ef68626b6160e0581fff5360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dec5e153b3202a43962486e5dbb32ae999d6f63ef68626b6160e0581fff5360", kill_on_drop: false }`
[INFO] [stdout] 8dec5e153b3202a43962486e5dbb32ae999d6f63ef68626b6160e0581fff5360
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+e9a387d6cf5961a7f2dcb671da3147bd413355c4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f96abe1c2d7826778d00533aff326923c8de49243ab1e30a7515548c507a3da
[INFO] running `Command { std: "docker" "start" "-a" "9f96abe1c2d7826778d00533aff326923c8de49243ab1e30a7515548c507a3da", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "9f96abe1c2d7826778d00533aff326923c8de49243ab1e30a7515548c507a3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f96abe1c2d7826778d00533aff326923c8de49243ab1e30a7515548c507a3da", kill_on_drop: false }`
[INFO] [stdout] 9f96abe1c2d7826778d00533aff326923c8de49243ab1e30a7515548c507a3da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+e9a387d6cf5961a7f2dcb671da3147bd413355c4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c18733334cc05922bb6e1976510267dc58ef315e19e743c3ed96c8a7622bafa8
[INFO] running `Command { std: "docker" "start" "-a" "c18733334cc05922bb6e1976510267dc58ef315e19e743c3ed96c8a7622bafa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde v1.0.126 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.31s
[INFO] running `Command { std: "docker" "inspect" "c18733334cc05922bb6e1976510267dc58ef315e19e743c3ed96c8a7622bafa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18733334cc05922bb6e1976510267dc58ef315e19e743c3ed96c8a7622bafa8", kill_on_drop: false }`
[INFO] [stdout] c18733334cc05922bb6e1976510267dc58ef315e19e743c3ed96c8a7622bafa8