[INFO] fetching crate v_jsonescape 0.5.1...
[INFO] testing v_jsonescape-0.5.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate v_jsonescape 0.5.1 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate v_jsonescape 0.5.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate v_jsonescape 0.5.1
[INFO] finished tweaking crates.io crate v_jsonescape 0.5.1
[INFO] tweaked toml for crates.io crate v_jsonescape 0.5.1 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 561152f2d5bef32c69cde04dd315c567e9c74a5648be1747ff6e60fe03b40b82
[INFO] running `Command { std: "docker" "start" "-a" "561152f2d5bef32c69cde04dd315c567e9c74a5648be1747ff6e60fe03b40b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "561152f2d5bef32c69cde04dd315c567e9c74a5648be1747ff6e60fe03b40b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561152f2d5bef32c69cde04dd315c567e9c74a5648be1747ff6e60fe03b40b82", kill_on_drop: false }`
[INFO] [stdout] 561152f2d5bef32c69cde04dd315c567e9c74a5648be1747ff6e60fe03b40b82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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=warn" "-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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb1b49271058739c8638ecac9927dbc3d6cc92935a76040f3c386d8e7445717c
[INFO] running `Command { std: "docker" "start" "-a" "cb1b49271058739c8638ecac9927dbc3d6cc92935a76040f3c386d8e7445717c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling v_escape v0.16.1
[INFO] [stderr]    Compiling v_jsonescape v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling buf-min v0.6.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling v_escape_derive v0.8.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.76s
[INFO] running `Command { std: "docker" "inspect" "cb1b49271058739c8638ecac9927dbc3d6cc92935a76040f3c386d8e7445717c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1b49271058739c8638ecac9927dbc3d6cc92935a76040f3c386d8e7445717c", kill_on_drop: false }`
[INFO] [stdout] cb1b49271058739c8638ecac9927dbc3d6cc92935a76040f3c386d8e7445717c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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=warn" "-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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c66ce2545286ae4c087e00dd00a20295ddd97900cf29471bfeda959b0f7c0a73
[INFO] running `Command { std: "docker" "start" "-a" "c66ce2545286ae4c087e00dd00a20295ddd97900cf29471bfeda959b0f7c0a73", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling v_jsonescape v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "c66ce2545286ae4c087e00dd00a20295ddd97900cf29471bfeda959b0f7c0a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c66ce2545286ae4c087e00dd00a20295ddd97900cf29471bfeda959b0f7c0a73", kill_on_drop: false }`
[INFO] [stdout] c66ce2545286ae4c087e00dd00a20295ddd97900cf29471bfeda959b0f7c0a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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=warn" "-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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a3c98dc98099b1cfd12fbcd863d6e7b6d3932bd1cc880ac997fa2b421bfd7ab4
[INFO] running `Command { std: "docker" "start" "-a" "a3c98dc98099b1cfd12fbcd863d6e7b6d3932bd1cc880ac997fa2b421bfd7ab4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/v_jsonescape-013e09eb1f4238f0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_escape ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests v_jsonescape
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a3c98dc98099b1cfd12fbcd863d6e7b6d3932bd1cc880ac997fa2b421bfd7ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c98dc98099b1cfd12fbcd863d6e7b6d3932bd1cc880ac997fa2b421bfd7ab4", kill_on_drop: false }`
[INFO] [stdout] a3c98dc98099b1cfd12fbcd863d6e7b6d3932bd1cc880ac997fa2b421bfd7ab4