[INFO] updating cached repository chills42/duplicatecheck
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chills42/duplicatecheck
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chills42/duplicatecheck" "work/ex/beta-1.38-1/sources/1.37.0/gh/chills42/duplicatecheck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/chills42/duplicatecheck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chills42/duplicatecheck" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chills42/duplicatecheck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chills42/duplicatecheck'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec7e78eb6b4b5bd730ffb9eefdb427c2452a2773
[INFO] sha for GitHub repo chills42/duplicatecheck: ec7e78eb6b4b5bd730ffb9eefdb427c2452a2773
[INFO] validating manifest of chills42/duplicatecheck on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chills42/duplicatecheck on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chills42/duplicatecheck
[INFO] finished frobbing chills42/duplicatecheck
[INFO] frobbed toml for chills42/duplicatecheck written to work/ex/beta-1.38-1/sources/1.37.0/gh/chills42/duplicatecheck/Cargo.toml
[INFO] started frobbing chills42/duplicatecheck
[INFO] finished frobbing chills42/duplicatecheck
[INFO] frobbed toml for chills42/duplicatecheck written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chills42/duplicatecheck/Cargo.toml
[INFO] crate chills42/duplicatecheck already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chills42/duplicatecheck against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chills42/duplicatecheck:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 2ef3839ab1079cb787b2179c918de9017df9d17ee4d8ce675b67135f2b1ece81
[INFO] running `"docker" "start" "-a" "2ef3839ab1079cb787b2179c918de9017df9d17ee4d8ce675b67135f2b1ece81"`
[INFO] [stderr]    Compiling duplicatecheck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:52:32
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn visit_dirs(dir: &Path, cb: &Fn(&DirEntry)) -> io::Result<()> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DirEntry)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "2ef3839ab1079cb787b2179c918de9017df9d17ee4d8ce675b67135f2b1ece81"`
[INFO] running `"docker" "rm" "-f" "2ef3839ab1079cb787b2179c918de9017df9d17ee4d8ce675b67135f2b1ece81"`
[INFO] [stdout] 2ef3839ab1079cb787b2179c918de9017df9d17ee4d8ce675b67135f2b1ece81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chills42/duplicatecheck:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8d8a6d75e52d55897dc5d3be225ab5a5d1ef0cab44b34cccf8d7b511b33c13e6
[INFO] running `"docker" "start" "-a" "8d8a6d75e52d55897dc5d3be225ab5a5d1ef0cab44b34cccf8d7b511b33c13e6"`
[INFO] [stderr]    Compiling duplicatecheck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:52:32
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn visit_dirs(dir: &Path, cb: &Fn(&DirEntry)) -> io::Result<()> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DirEntry)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "8d8a6d75e52d55897dc5d3be225ab5a5d1ef0cab44b34cccf8d7b511b33c13e6"`
[INFO] running `"docker" "rm" "-f" "8d8a6d75e52d55897dc5d3be225ab5a5d1ef0cab44b34cccf8d7b511b33c13e6"`
[INFO] [stdout] 8d8a6d75e52d55897dc5d3be225ab5a5d1ef0cab44b34cccf8d7b511b33c13e6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chills42/duplicatecheck:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ffb7066209b7d40b67b149d7a3089f0eaf368fc9c2c35ea68f1492139cf74a32
[INFO] running `"docker" "start" "-a" "ffb7066209b7d40b67b149d7a3089f0eaf368fc9c2c35ea68f1492139cf74a32"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/duplicatecheck-e78c16e04d781533
[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" "ffb7066209b7d40b67b149d7a3089f0eaf368fc9c2c35ea68f1492139cf74a32"`
[INFO] running `"docker" "rm" "-f" "ffb7066209b7d40b67b149d7a3089f0eaf368fc9c2c35ea68f1492139cf74a32"`
[INFO] [stdout] ffb7066209b7d40b67b149d7a3089f0eaf368fc9c2c35ea68f1492139cf74a32