[INFO] updating cached repository item4net/holiday_gen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/item4net/holiday_gen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/item4net/holiday_gen" "work/ex/beta-1.38-1/sources/1.37.0/gh/item4net/holiday_gen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/item4net/holiday_gen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/item4net/holiday_gen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/item4net/holiday_gen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/item4net/holiday_gen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d8ce8e7bb05333fed8e6afcf07e83eeebbec9a79
[INFO] sha for GitHub repo item4net/holiday_gen: d8ce8e7bb05333fed8e6afcf07e83eeebbec9a79
[INFO] validating manifest of item4net/holiday_gen 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 item4net/holiday_gen 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 item4net/holiday_gen
[INFO] finished frobbing item4net/holiday_gen
[INFO] frobbed toml for item4net/holiday_gen written to work/ex/beta-1.38-1/sources/1.37.0/gh/item4net/holiday_gen/Cargo.toml
[INFO] started frobbing item4net/holiday_gen
[INFO] finished frobbing item4net/holiday_gen
[INFO] frobbed toml for item4net/holiday_gen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/item4net/holiday_gen/Cargo.toml
[INFO] crate item4net/holiday_gen 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 item4net/holiday_gen 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/item4net/holiday_gen:/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] cede9c4b0031a08cc380b1b9daa2796b2e0786fab4eb062cb882e9250d209a54
[INFO] running `"docker" "start" "-a" "cede9c4b0031a08cc380b1b9daa2796b2e0786fab4eb062cb882e9250d209a54"`
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling serde v1.0.86
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.86
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.38
[INFO] [stderr]    Compiling holiday_gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.08s
[INFO] running `"docker" "inspect" "cede9c4b0031a08cc380b1b9daa2796b2e0786fab4eb062cb882e9250d209a54"`
[INFO] running `"docker" "rm" "-f" "cede9c4b0031a08cc380b1b9daa2796b2e0786fab4eb062cb882e9250d209a54"`
[INFO] [stdout] cede9c4b0031a08cc380b1b9daa2796b2e0786fab4eb062cb882e9250d209a54
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/item4net/holiday_gen:/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] 89040c08e2a6e06dcc7c714e91f4560e0a2901c1425d199584de57ebe404df55
[INFO] running `"docker" "start" "-a" "89040c08e2a6e06dcc7c714e91f4560e0a2901c1425d199584de57ebe404df55"`
[INFO] [stderr]    Compiling holiday_gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "89040c08e2a6e06dcc7c714e91f4560e0a2901c1425d199584de57ebe404df55"`
[INFO] running `"docker" "rm" "-f" "89040c08e2a6e06dcc7c714e91f4560e0a2901c1425d199584de57ebe404df55"`
[INFO] [stdout] 89040c08e2a6e06dcc7c714e91f4560e0a2901c1425d199584de57ebe404df55
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/item4net/holiday_gen:/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] 363c0d31809c5f9c2d3f1e242617fb9f147636a484b44f91b0823352db256238
[INFO] running `"docker" "start" "-a" "363c0d31809c5f9c2d3f1e242617fb9f147636a484b44f91b0823352db256238"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/holiday_gen-50b6ea72ed51bfd1
[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" "363c0d31809c5f9c2d3f1e242617fb9f147636a484b44f91b0823352db256238"`
[INFO] running `"docker" "rm" "-f" "363c0d31809c5f9c2d3f1e242617fb9f147636a484b44f91b0823352db256238"`
[INFO] [stdout] 363c0d31809c5f9c2d3f1e242617fb9f147636a484b44f91b0823352db256238