[INFO] fetching crate b2c2-flag 0.1.5...
[INFO] checking b2c2-flag-0.1.5 against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] extracting crate b2c2-flag 0.1.5 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate b2c2-flag 0.1.5
[INFO] finished tweaking crates.io crate b2c2-flag 0.1.5
[INFO] tweaked toml for crates.io crate b2c2-flag 0.1.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate b2c2-flag 0.1.5 on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded b2c2-compiler-common v0.1.4
[INFO] [stderr]   Downloaded b2c2-common v0.1.1
[INFO] [stderr]   Downloaded b2c2-parser v1.0.5
[INFO] [stderr]   Downloaded b2c2-casl2 v0.1.4
[INFO] [stderr]   Downloaded b2c2-tokenizer v1.0.1
[INFO] [stderr]   Downloaded b2c2-compiler v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e0617be5c450220e572fd458b5fc66d4ab49509213afa3ca1fb3a720ef2a18c
[INFO] running `Command { std: "docker" "start" "-a" "6e0617be5c450220e572fd458b5fc66d4ab49509213afa3ca1fb3a720ef2a18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e0617be5c450220e572fd458b5fc66d4ab49509213afa3ca1fb3a720ef2a18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e0617be5c450220e572fd458b5fc66d4ab49509213afa3ca1fb3a720ef2a18c", kill_on_drop: false }`
[INFO] [stdout] 6e0617be5c450220e572fd458b5fc66d4ab49509213afa3ca1fb3a720ef2a18c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 520f504662d0f03fbc3151e9e991cb9bf39519a5cd9485f4af654fc309c97bd7
[INFO] running `Command { std: "docker" "start" "-a" "520f504662d0f03fbc3151e9e991cb9bf39519a5cd9485f4af654fc309c97bd7", kill_on_drop: false }`
[INFO] [stderr]     Checking b2c2-common v0.1.1
[INFO] [stderr]     Checking b2c2-casl2 v0.1.4
[INFO] [stderr]     Checking b2c2-tokenizer v1.0.1
[INFO] [stderr]     Checking b2c2-compiler-common v0.1.4
[INFO] [stderr]     Checking b2c2-parser v1.0.5
[INFO] [stderr]     Checking b2c2-compiler v1.0.6
[INFO] [stderr]     Checking b2c2-flag v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `Command { std: "docker" "inspect" "520f504662d0f03fbc3151e9e991cb9bf39519a5cd9485f4af654fc309c97bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "520f504662d0f03fbc3151e9e991cb9bf39519a5cd9485f4af654fc309c97bd7", kill_on_drop: false }`
[INFO] [stdout] 520f504662d0f03fbc3151e9e991cb9bf39519a5cd9485f4af654fc309c97bd7