[INFO] fetching crate twang 0.7.0...
[INFO] testing twang-0.7.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate twang 0.7.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate twang 0.7.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twang 0.7.0
[INFO] finished tweaking crates.io crate twang 0.7.0
[INFO] tweaked toml for crates.io crate twang 0.7.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate twang 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19a22fcde5d6ca5368bb0bcbd50bccae1b74652589e432cfa6feae353cc058ad
[INFO] running `Command { std: "docker" "start" "-a" "19a22fcde5d6ca5368bb0bcbd50bccae1b74652589e432cfa6feae353cc058ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19a22fcde5d6ca5368bb0bcbd50bccae1b74652589e432cfa6feae353cc058ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a22fcde5d6ca5368bb0bcbd50bccae1b74652589e432cfa6feae353cc058ad", kill_on_drop: false }`
[INFO] [stdout] 19a22fcde5d6ca5368bb0bcbd50bccae1b74652589e432cfa6feae353cc058ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac4eacf2a69c1afa1e3a72c3aa8f839475bdbadffe816e54c7f8f2d0a6a60d31
[INFO] running `Command { std: "docker" "start" "-a" "ac4eacf2a69c1afa1e3a72c3aa8f839475bdbadffe816e54c7f8f2d0a6a60d31", kill_on_drop: false }`
[INFO] [stderr]    Compiling fon v0.5.0
[INFO] [stderr]    Compiling twang v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "ac4eacf2a69c1afa1e3a72c3aa8f839475bdbadffe816e54c7f8f2d0a6a60d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4eacf2a69c1afa1e3a72c3aa8f839475bdbadffe816e54c7f8f2d0a6a60d31", kill_on_drop: false }`
[INFO] [stdout] ac4eacf2a69c1afa1e3a72c3aa8f839475bdbadffe816e54c7f8f2d0a6a60d31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3e7768e1679204a5873f4f84e85c9173d24d1335d14012dc90cf16cf2e3d383
[INFO] running `Command { std: "docker" "start" "-a" "e3e7768e1679204a5873f4f84e85c9173d24d1335d14012dc90cf16cf2e3d383", kill_on_drop: false }`
[INFO] [stderr]    Compiling twang v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "e3e7768e1679204a5873f4f84e85c9173d24d1335d14012dc90cf16cf2e3d383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e7768e1679204a5873f4f84e85c9173d24d1335d14012dc90cf16cf2e3d383", kill_on_drop: false }`
[INFO] [stdout] e3e7768e1679204a5873f4f84e85c9173d24d1335d14012dc90cf16cf2e3d383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78f95ea10dbf6dfb87a2328fe25f69aede2459b0ea176093f157d89091bab459
[INFO] running `Command { std: "docker" "start" "-a" "78f95ea10dbf6dfb87a2328fe25f69aede2459b0ea176093f157d89091bab459", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/twang-9d91466e491cf29e)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twang
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 32) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "78f95ea10dbf6dfb87a2328fe25f69aede2459b0ea176093f157d89091bab459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78f95ea10dbf6dfb87a2328fe25f69aede2459b0ea176093f157d89091bab459", kill_on_drop: false }`
[INFO] [stdout] 78f95ea10dbf6dfb87a2328fe25f69aede2459b0ea176093f157d89091bab459