[INFO] cloning repository cowang4/rusty_tree
[INFO] running `"git" "clone" "--bare" "git://github.com/cowang4/rusty_tree.git" "work/cache/sources/gh/cowang4/rusty_tree"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/cowang4/rusty_tree'...
[INFO] running `"git" "clone" "work/cache/sources/gh/cowang4/rusty_tree" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cowang4/rusty_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cowang4/rusty_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cowang4/rusty_tree" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cowang4/rusty_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cowang4/rusty_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1af153e0f8c444421590cbc83c462b3f3bb0cda
[INFO] sha for GitHub repo cowang4/rusty_tree: e1af153e0f8c444421590cbc83c462b3f3bb0cda
[INFO] validating manifest of cowang4/rusty_tree on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cowang4/rusty_tree on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cowang4/rusty_tree
[INFO] finished frobbing cowang4/rusty_tree
[INFO] frobbed toml for cowang4/rusty_tree written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cowang4/rusty_tree/Cargo.toml
[INFO] started frobbing cowang4/rusty_tree
[INFO] finished frobbing cowang4/rusty_tree
[INFO] frobbed toml for cowang4/rusty_tree written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cowang4/rusty_tree/Cargo.toml
[INFO] crate cowang4/rusty_tree already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cowang4/rusty_tree against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cowang4/rusty_tree:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] c71c95361a2b6229456bd965a3078852189029102957d984b019244c5100f888
[INFO] running `"docker" "start" "-a" "c71c95361a2b6229456bd965a3078852189029102957d984b019244c5100f888"`
[INFO] [stderr]    Compiling strsim v0.9.0
[INFO] [stderr]    Compiling lscolors v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling rusty_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.73s
[INFO] running `"docker" "inspect" "c71c95361a2b6229456bd965a3078852189029102957d984b019244c5100f888"`
[INFO] running `"docker" "rm" "-f" "c71c95361a2b6229456bd965a3078852189029102957d984b019244c5100f888"`
[INFO] [stdout] c71c95361a2b6229456bd965a3078852189029102957d984b019244c5100f888
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cowang4/rusty_tree:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2a84530611d21759a1031f2d56834a3ffbcb5651a1e441548b0bad12cf9dafa7
[INFO] running `"docker" "start" "-a" "2a84530611d21759a1031f2d56834a3ffbcb5651a1e441548b0bad12cf9dafa7"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling rusty_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "2a84530611d21759a1031f2d56834a3ffbcb5651a1e441548b0bad12cf9dafa7"`
[INFO] running `"docker" "rm" "-f" "2a84530611d21759a1031f2d56834a3ffbcb5651a1e441548b0bad12cf9dafa7"`
[INFO] [stdout] 2a84530611d21759a1031f2d56834a3ffbcb5651a1e441548b0bad12cf9dafa7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cowang4/rusty_tree:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] b63512e9bd7712b96e1a75db1db9dc164f34b856f2f567e6ee5c62b3e914501e
[INFO] running `"docker" "start" "-a" "b63512e9bd7712b96e1a75db1db9dc164f34b856f2f567e6ee5c62b3e914501e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_tree-9021a7d8a6d4069c
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b63512e9bd7712b96e1a75db1db9dc164f34b856f2f567e6ee5c62b3e914501e"`
[INFO] running `"docker" "rm" "-f" "b63512e9bd7712b96e1a75db1db9dc164f34b856f2f567e6ee5c62b3e914501e"`
[INFO] [stdout] b63512e9bd7712b96e1a75db1db9dc164f34b856f2f567e6ee5c62b3e914501e