[INFO] fetching crate sback 0.3.0...
[INFO] checking sback-0.3.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate sback 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sback 0.3.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sback 0.3.0
[INFO] finished tweaking crates.io crate sback 0.3.0
[INFO] tweaked toml for crates.io crate sback 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate sback 0.3.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5abd9b39ad0d425b266d48b78319b9f7431c340212f536a6c238b5c039106201
[INFO] running `Command { std: "docker" "start" "-a" "5abd9b39ad0d425b266d48b78319b9f7431c340212f536a6c238b5c039106201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5abd9b39ad0d425b266d48b78319b9f7431c340212f536a6c238b5c039106201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5abd9b39ad0d425b266d48b78319b9f7431c340212f536a6c238b5c039106201", kill_on_drop: false }`
[INFO] [stdout] 5abd9b39ad0d425b266d48b78319b9f7431c340212f536a6c238b5c039106201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ce45746f5ff16d294f6b58361bba3ebb778c1024c6d5baa8a4ebb4808f9b842
[INFO] running `Command { std: "docker" "start" "-a" "4ce45746f5ff16d294f6b58361bba3ebb778c1024c6d5baa8a4ebb4808f9b842", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking xattr v0.2.3
[INFO] [stderr]     Checking filetime v0.2.19
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking tar v0.4.38
[INFO] [stderr]     Checking xdg v2.4.1
[INFO] [stderr]     Checking clap v3.2.23
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking sback v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "4ce45746f5ff16d294f6b58361bba3ebb778c1024c6d5baa8a4ebb4808f9b842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ce45746f5ff16d294f6b58361bba3ebb778c1024c6d5baa8a4ebb4808f9b842", kill_on_drop: false }`
[INFO] [stdout] 4ce45746f5ff16d294f6b58361bba3ebb778c1024c6d5baa8a4ebb4808f9b842