[INFO] fetching crate rug-maths 0.2.5...
[INFO] checking rug-maths-0.2.5 against master#b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd for pr-155499
[INFO] extracting crate rug-maths 0.2.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rug-maths 0.2.5
[INFO] finished tweaking crates.io crate rug-maths 0.2.5
[INFO] tweaked toml for crates.io crate rug-maths 0.2.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rug-maths 0.2.5 on toolchain b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "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" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rug v1.29.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.7.0
[INFO] [stderr]   Downloaded maths-traits v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93d5b5ffaaec39311570eeea3cafa1058f3975d1ee51823df3cb7f3c3db5b8a9
[INFO] running `Command { std: "docker" "start" "-a" "93d5b5ffaaec39311570eeea3cafa1058f3975d1ee51823df3cb7f3c3db5b8a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93d5b5ffaaec39311570eeea3cafa1058f3975d1ee51823df3cb7f3c3db5b8a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d5b5ffaaec39311570eeea3cafa1058f3975d1ee51823df3cb7f3c3db5b8a9", kill_on_drop: false }`
[INFO] [stdout] 93d5b5ffaaec39311570eeea3cafa1058f3975d1ee51823df3cb7f3c3db5b8a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0df572da8a351847bbf477ea5667f32965ce3e109ad4f043e2d63a0cc80ff8c
[INFO] running `Command { std: "docker" "start" "-a" "b0df572da8a351847bbf477ea5667f32965ce3e109ad4f043e2d63a0cc80ff8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rug v1.29.0
[INFO] [stderr]     Checking az v1.3.0
[INFO] [stderr]     Checking maths-traits v0.2.1
[INFO] [stderr]     Checking rug-maths v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 01s
[INFO] running `Command { std: "docker" "inspect" "b0df572da8a351847bbf477ea5667f32965ce3e109ad4f043e2d63a0cc80ff8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0df572da8a351847bbf477ea5667f32965ce3e109ad4f043e2d63a0cc80ff8c", kill_on_drop: false }`
[INFO] [stdout] b0df572da8a351847bbf477ea5667f32965ce3e109ad4f043e2d63a0cc80ff8c