[INFO] updating cached repository sorami/ngram
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sorami/ngram
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sorami/ngram" "work/ex/beta-1.38-1/sources/1.37.0/gh/sorami/ngram"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sorami/ngram'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sorami/ngram" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sorami/ngram"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sorami/ngram'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5de2266f69d0a6b14bab1360a6e8e6eeb89c80fd
[INFO] sha for GitHub repo sorami/ngram: 5de2266f69d0a6b14bab1360a6e8e6eeb89c80fd
[INFO] validating manifest of sorami/ngram 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 sorami/ngram 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 sorami/ngram
[INFO] finished frobbing sorami/ngram
[INFO] frobbed toml for sorami/ngram written to work/ex/beta-1.38-1/sources/1.37.0/gh/sorami/ngram/Cargo.toml
[INFO] started frobbing sorami/ngram
[INFO] finished frobbing sorami/ngram
[INFO] frobbed toml for sorami/ngram written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sorami/ngram/Cargo.toml
[INFO] crate sorami/ngram 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 sorami/ngram against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sorami/ngram:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f53ab7a335b6dea668b82767c91164ea21b8e391c806497fc7ff8f140e6bab88
[INFO] running `"docker" "start" "-a" "f53ab7a335b6dea668b82767c91164ea21b8e391c806497fc7ff8f140e6bab88"`
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling structopt v0.2.15
[INFO] [stderr]    Compiling ngram v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let reader: Box<BufRead> = match args.file {
[INFO] [stderr]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:113:23
[INFO] [stderr]     |
[INFO] [stderr] 113 |             }) as Box<Write> 
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.63s
[INFO] running `"docker" "inspect" "f53ab7a335b6dea668b82767c91164ea21b8e391c806497fc7ff8f140e6bab88"`
[INFO] running `"docker" "rm" "-f" "f53ab7a335b6dea668b82767c91164ea21b8e391c806497fc7ff8f140e6bab88"`
[INFO] [stdout] f53ab7a335b6dea668b82767c91164ea21b8e391c806497fc7ff8f140e6bab88
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sorami/ngram:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a37d9087f5a6f051b5599c61116357dde8e922259d1541e16bc611f63ae5121c
[INFO] running `"docker" "start" "-a" "a37d9087f5a6f051b5599c61116357dde8e922259d1541e16bc611f63ae5121c"`
[INFO] [stderr]    Compiling ngram v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let reader: Box<BufRead> = match args.file {
[INFO] [stderr]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:113:23
[INFO] [stderr]     |
[INFO] [stderr] 113 |             }) as Box<Write> 
[INFO] [stderr]     |                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "a37d9087f5a6f051b5599c61116357dde8e922259d1541e16bc611f63ae5121c"`
[INFO] running `"docker" "rm" "-f" "a37d9087f5a6f051b5599c61116357dde8e922259d1541e16bc611f63ae5121c"`
[INFO] [stdout] a37d9087f5a6f051b5599c61116357dde8e922259d1541e16bc611f63ae5121c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sorami/ngram:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 88fba6924069b78c20efc54e9e4c26ccf7e21b687d468b3cc8e17a6e07cb1a12
[INFO] running `"docker" "start" "-a" "88fba6924069b78c20efc54e9e4c26ccf7e21b687d468b3cc8e17a6e07cb1a12"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ngram-3f0df06d12a54a7a
[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" "88fba6924069b78c20efc54e9e4c26ccf7e21b687d468b3cc8e17a6e07cb1a12"`
[INFO] running `"docker" "rm" "-f" "88fba6924069b78c20efc54e9e4c26ccf7e21b687d468b3cc8e17a6e07cb1a12"`
[INFO] [stdout] 88fba6924069b78c20efc54e9e4c26ccf7e21b687d468b3cc8e17a6e07cb1a12