[INFO] fetching crate json-generator 0.1.6...
[INFO] testing json-generator-0.1.6 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate json-generator 0.1.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate json-generator 0.1.6
[INFO] finished tweaking crates.io crate json-generator 0.1.6
[INFO] tweaked toml for crates.io crate json-generator 0.1.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json-generator 0.1.6 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 60 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding structopt v0.2.18 (available: v0.3.26)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e0e9601757d189d3a78e318e9c19eb2f1b3ede9374621147c103e0c0b740475
[INFO] running `Command { std: "docker" "start" "-a" "4e0e9601757d189d3a78e318e9c19eb2f1b3ede9374621147c103e0c0b740475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e0e9601757d189d3a78e318e9c19eb2f1b3ede9374621147c103e0c0b740475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e0e9601757d189d3a78e318e9c19eb2f1b3ede9374621147c103e0c0b740475", kill_on_drop: false }`
[INFO] [stdout] 4e0e9601757d189d3a78e318e9c19eb2f1b3ede9374621147c103e0c0b740475
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29c47929f2019e53819fa1dd035e6cd0f5f6b16fffd18540646c01d21e8abcf0
[INFO] running `Command { std: "docker" "start" "-a" "29c47929f2019e53819fa1dd035e6cd0f5f6b16fffd18540646c01d21e8abcf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pest v2.8.6
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling pest_meta v2.8.6
[INFO] [stderr]    Compiling pest_generator v2.8.6
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling pest_derive v2.8.6
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling json-generator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.57s
[INFO] running `Command { std: "docker" "inspect" "29c47929f2019e53819fa1dd035e6cd0f5f6b16fffd18540646c01d21e8abcf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c47929f2019e53819fa1dd035e6cd0f5f6b16fffd18540646c01d21e8abcf0", kill_on_drop: false }`
[INFO] [stdout] 29c47929f2019e53819fa1dd035e6cd0f5f6b16fffd18540646c01d21e8abcf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ab0cf07d2b2770cbecef98a80277fed0721a18de8be50109569bbdbdd979972
[INFO] running `Command { std: "docker" "start" "-a" "0ab0cf07d2b2770cbecef98a80277fed0721a18de8be50109569bbdbdd979972", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-generator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "0ab0cf07d2b2770cbecef98a80277fed0721a18de8be50109569bbdbdd979972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab0cf07d2b2770cbecef98a80277fed0721a18de8be50109569bbdbdd979972", kill_on_drop: false }`
[INFO] [stdout] 0ab0cf07d2b2770cbecef98a80277fed0721a18de8be50109569bbdbdd979972
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e2c89fe6f449f902a1e6eeb6bf306a870fc8fe5d8759d074c7a1ae97affbd4e
[INFO] running `Command { std: "docker" "start" "-a" "7e2c89fe6f449f902a1e6eeb6bf306a870fc8fe5d8759d074c7a1ae97affbd4e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/jg-ea938ebd5c91f5f2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e2c89fe6f449f902a1e6eeb6bf306a870fc8fe5d8759d074c7a1ae97affbd4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e2c89fe6f449f902a1e6eeb6bf306a870fc8fe5d8759d074c7a1ae97affbd4e", kill_on_drop: false }`
[INFO] [stdout] 7e2c89fe6f449f902a1e6eeb6bf306a870fc8fe5d8759d074c7a1ae97affbd4e