[INFO] fetching crate reverse_differentiable 0.1.2...
[INFO] checking reverse_differentiable-0.1.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate reverse_differentiable 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate reverse_differentiable 0.1.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reverse_differentiable 0.1.2
[INFO] finished tweaking crates.io crate reverse_differentiable 0.1.2
[INFO] tweaked toml for crates.io crate reverse_differentiable 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87591fb4b1dcbdcaa0f7a4e66a5b535e6463f353855c24592f2dfdd7b6786fd7
[INFO] running `Command { std: "docker" "start" "-a" "87591fb4b1dcbdcaa0f7a4e66a5b535e6463f353855c24592f2dfdd7b6786fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87591fb4b1dcbdcaa0f7a4e66a5b535e6463f353855c24592f2dfdd7b6786fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87591fb4b1dcbdcaa0f7a4e66a5b535e6463f353855c24592f2dfdd7b6786fd7", kill_on_drop: false }`
[INFO] [stdout] 87591fb4b1dcbdcaa0f7a4e66a5b535e6463f353855c24592f2dfdd7b6786fd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ec82c75dc01ca5be80f6f2d3c59427928e0b37e45edf95927296c4a68c7263e
[INFO] running `Command { std: "docker" "start" "-a" "1ec82c75dc01ca5be80f6f2d3c59427928e0b37e45edf95927296c4a68c7263e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking reverse_differentiable v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "1ec82c75dc01ca5be80f6f2d3c59427928e0b37e45edf95927296c4a68c7263e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec82c75dc01ca5be80f6f2d3c59427928e0b37e45edf95927296c4a68c7263e", kill_on_drop: false }`
[INFO] [stdout] 1ec82c75dc01ca5be80f6f2d3c59427928e0b37e45edf95927296c4a68c7263e