[INFO] fetching crate rgc 0.3.4...
[INFO] testing rgc-0.3.4 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate rgc 0.3.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rgc 0.3.4 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rgc 0.3.4
[INFO] finished tweaking crates.io crate rgc 0.3.4
[INFO] tweaked toml for crates.io crate rgc 0.3.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rgc 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bunt-macros v0.1.0
[INFO] [stderr]   Downloaded bunt v0.1.0
[INFO] [stderr]   Downloaded simple_input v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e883dd5e0acd6ca205aae1c3179d412c1e444cb53334b428a96d76971edb8333
[INFO] running `Command { std: "docker" "start" "-a" "e883dd5e0acd6ca205aae1c3179d412c1e444cb53334b428a96d76971edb8333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e883dd5e0acd6ca205aae1c3179d412c1e444cb53334b428a96d76971edb8333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e883dd5e0acd6ca205aae1c3179d412c1e444cb53334b428a96d76971edb8333", kill_on_drop: false }`
[INFO] [stdout] e883dd5e0acd6ca205aae1c3179d412c1e444cb53334b428a96d76971edb8333
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9fb5b437571845b23f45033d4d17430465cea2ecec6889ca87aff2781faf831
[INFO] running `Command { std: "docker" "start" "-a" "e9fb5b437571845b23f45033d4d17430465cea2ecec6889ca87aff2781faf831", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling simple_input v0.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling bunt-macros v0.1.0
[INFO] [stderr]    Compiling bunt v0.1.0
[INFO] [stderr]    Compiling rgc v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `Command { std: "docker" "inspect" "e9fb5b437571845b23f45033d4d17430465cea2ecec6889ca87aff2781faf831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9fb5b437571845b23f45033d4d17430465cea2ecec6889ca87aff2781faf831", kill_on_drop: false }`
[INFO] [stdout] e9fb5b437571845b23f45033d4d17430465cea2ecec6889ca87aff2781faf831
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a568971fcb9e826571e97152eeaec6626c777f88ac6ddfe94a8d423f85fe4abd
[INFO] running `Command { std: "docker" "start" "-a" "a568971fcb9e826571e97152eeaec6626c777f88ac6ddfe94a8d423f85fe4abd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgc v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "a568971fcb9e826571e97152eeaec6626c777f88ac6ddfe94a8d423f85fe4abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a568971fcb9e826571e97152eeaec6626c777f88ac6ddfe94a8d423f85fe4abd", kill_on_drop: false }`
[INFO] [stdout] a568971fcb9e826571e97152eeaec6626c777f88ac6ddfe94a8d423f85fe4abd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] edb2e5c14f34c309f6aa2ef9b39c8b30e7f00e51cddc48ca5603413b68c3c3f2
[INFO] running `Command { std: "docker" "start" "-a" "edb2e5c14f34c309f6aa2ef9b39c8b30e7f00e51cddc48ca5603413b68c3c3f2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rgc-49734eec8bc2447f)
[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" "edb2e5c14f34c309f6aa2ef9b39c8b30e7f00e51cddc48ca5603413b68c3c3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edb2e5c14f34c309f6aa2ef9b39c8b30e7f00e51cddc48ca5603413b68c3c3f2", kill_on_drop: false }`
[INFO] [stdout] edb2e5c14f34c309f6aa2ef9b39c8b30e7f00e51cddc48ca5603413b68c3c3f2