[INFO] fetching crate vc-holder 0.1.0-alpha...
[INFO] testing vc-holder-0.1.0-alpha against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate vc-holder 0.1.0-alpha
[INFO] finished tweaking crates.io crate vc-holder 0.1.0-alpha
[INFO] tweaked toml for crates.io crate vc-holder 0.1.0-alpha written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vc-holder 0.1.0-alpha on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vc-holder 0.1.0-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8caa4a12dadf11b1136514e9406594ad83bbcef0a8aaca1b5d89ae79784199b2
[INFO] running `Command { std: "docker" "start" "-a" "8caa4a12dadf11b1136514e9406594ad83bbcef0a8aaca1b5d89ae79784199b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8caa4a12dadf11b1136514e9406594ad83bbcef0a8aaca1b5d89ae79784199b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8caa4a12dadf11b1136514e9406594ad83bbcef0a8aaca1b5d89ae79784199b2", kill_on_drop: false }`
[INFO] [stdout] 8caa4a12dadf11b1136514e9406594ad83bbcef0a8aaca1b5d89ae79784199b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3889015f61ee666b35c312e618a81b440454a58b8cc4da37250f5a9f2b2c9db
[INFO] running `Command { std: "docker" "start" "-a" "e3889015f61ee666b35c312e618a81b440454a58b8cc4da37250f5a9f2b2c9db", kill_on_drop: false }`
[INFO] [stderr]    Compiling vc-holder v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "e3889015f61ee666b35c312e618a81b440454a58b8cc4da37250f5a9f2b2c9db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3889015f61ee666b35c312e618a81b440454a58b8cc4da37250f5a9f2b2c9db", kill_on_drop: false }`
[INFO] [stdout] e3889015f61ee666b35c312e618a81b440454a58b8cc4da37250f5a9f2b2c9db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0634839eeffe6788388c080aa7972f994641345062898413a240b9cb8c6febc3
[INFO] running `Command { std: "docker" "start" "-a" "0634839eeffe6788388c080aa7972f994641345062898413a240b9cb8c6febc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling vc-holder v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "0634839eeffe6788388c080aa7972f994641345062898413a240b9cb8c6febc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0634839eeffe6788388c080aa7972f994641345062898413a240b9cb8c6febc3", kill_on_drop: false }`
[INFO] [stdout] 0634839eeffe6788388c080aa7972f994641345062898413a240b9cb8c6febc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0a5074e9b46368514b0f8d35c647a6b20582b30d9802cb3e612872ff02b1acb
[INFO] running `Command { std: "docker" "start" "-a" "a0a5074e9b46368514b0f8d35c647a6b20582b30d9802cb3e612872ff02b1acb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vc_holder-f2846579d2510073)
[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] [stderr]    Doc-tests vc_holder
[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" "a0a5074e9b46368514b0f8d35c647a6b20582b30d9802cb3e612872ff02b1acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a5074e9b46368514b0f8d35c647a6b20582b30d9802cb3e612872ff02b1acb", kill_on_drop: false }`
[INFO] [stdout] a0a5074e9b46368514b0f8d35c647a6b20582b30d9802cb3e612872ff02b1acb