[INFO] cloning repository https://github.com/seanaye/doppleganger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seanaye/doppleganger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanaye%2Fdoppleganger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanaye%2Fdoppleganger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e70f40191b46ecc25e5d419fb2e1cdd2f836e7e7
[INFO] checking seanaye/doppleganger against try#e983148bd5f0f0db270bfb72149f5e892e68b67f for pr-150322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanaye%2Fdoppleganger" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/seanaye/doppleganger
[INFO] finished tweaking git repo https://github.com/seanaye/doppleganger
[INFO] tweaked toml for git repo https://github.com/seanaye/doppleganger written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/seanaye/doppleganger on toolchain e983148bd5f0f0db270bfb72149f5e892e68b67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/seanaye/doppleganger 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" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cool_asserts v2.0.3
[INFO] [stderr]   Downloaded mutants v0.0.3
[INFO] [stderr]   Downloaded indent_write v2.2.0
[INFO] [stderr]   Downloaded unsynn v0.3.0
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db46bdf75a6ea330d5d0d5ea4a2e17dbbe08a346422c6f4cb792375ad66214c4
[INFO] running `Command { std: "docker" "start" "-a" "db46bdf75a6ea330d5d0d5ea4a2e17dbbe08a346422c6f4cb792375ad66214c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db46bdf75a6ea330d5d0d5ea4a2e17dbbe08a346422c6f4cb792375ad66214c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db46bdf75a6ea330d5d0d5ea4a2e17dbbe08a346422c6f4cb792375ad66214c4", kill_on_drop: false }`
[INFO] [stdout] db46bdf75a6ea330d5d0d5ea4a2e17dbbe08a346422c6f4cb792375ad66214c4
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49bb66610cd6252fdc9841cd336e2ea11805f14d989b5aa321fe47c8fccbd595
[INFO] running `Command { std: "docker" "start" "-a" "49bb66610cd6252fdc9841cd336e2ea11805f14d989b5aa321fe47c8fccbd595", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]     Checking doppleganger-core v0.4.0 (/opt/rustwide/workdir/doppleganger-core)
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]     Checking cool_asserts v2.0.3
[INFO] [stderr]     Checking unsynn v0.3.0
[INFO] [stderr]     Checking doppleganger-macros-parse v0.4.0 (/opt/rustwide/workdir/doppleganger-macros-parse)
[INFO] [stderr]     Checking doppleganger-macros v0.4.0 (/opt/rustwide/workdir/doppleganger-macros)
[INFO] [stderr]     Checking doppleganger v0.4.0 (/opt/rustwide/workdir/doppleganger)
[INFO] [stderr]     Checking doppleganger-examples v0.4.0 (/opt/rustwide/workdir/examples)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "49bb66610cd6252fdc9841cd336e2ea11805f14d989b5aa321fe47c8fccbd595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49bb66610cd6252fdc9841cd336e2ea11805f14d989b5aa321fe47c8fccbd595", kill_on_drop: false }`
[INFO] [stdout] 49bb66610cd6252fdc9841cd336e2ea11805f14d989b5aa321fe47c8fccbd595