[INFO] cloning repository cdown/mack
[INFO] running `"git" "clone" "--bare" "git://github.com/cdown/mack.git" "work/cache/sources/gh/cdown/mack"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/cdown/mack'...
[INFO] running `"git" "clone" "work/cache/sources/gh/cdown/mack" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/cdown/mack"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/cdown/mack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cdown/mack" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/cdown/mack"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/cdown/mack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a4d33a3d6b077789fe1a80b2244cc952ed1fe77
[INFO] sha for GitHub repo cdown/mack: 8a4d33a3d6b077789fe1a80b2244cc952ed1fe77
[INFO] validating manifest of cdown/mack on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cdown/mack on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cdown/mack
[INFO] finished frobbing cdown/mack
[INFO] frobbed toml for cdown/mack written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/cdown/mack/Cargo.toml
[INFO] started frobbing cdown/mack
[INFO] finished frobbing cdown/mack
[INFO] frobbed toml for cdown/mack written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/cdown/mack/Cargo.toml
[INFO] crate cdown/mack already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded taglib v1.0.0
[INFO] [stderr]   Downloaded taglib-sys v1.0.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cdown/mack against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-1/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/cdown/mack:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 492e1a809df7f9b442c88a713d26762c7529a08b7c716d1fb36b6813d09e5c96
[INFO] running `"docker" "start" "-a" "492e1a809df7f9b442c88a713d26762c7529a08b7c716d1fb36b6813d09e5c96"`
[INFO] [stderr]    Compiling taglib-sys v1.0.0
[INFO] [stderr]     Checking taglib v1.0.0
[INFO] [stderr]     Checking mack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "492e1a809df7f9b442c88a713d26762c7529a08b7c716d1fb36b6813d09e5c96"`
[INFO] running `"docker" "rm" "-f" "492e1a809df7f9b442c88a713d26762c7529a08b7c716d1fb36b6813d09e5c96"`
[INFO] [stdout] 492e1a809df7f9b442c88a713d26762c7529a08b7c716d1fb36b6813d09e5c96