[INFO] updating cached repository frol/rust-benchmark-option-replace_with-rfc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/frol/rust-benchmark-option-replace_with-rfc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/frol/rust-benchmark-option-replace_with-rfc" "work/ex/beta-1.37-6/sources/1.36.0/gh/frol/rust-benchmark-option-replace_with-rfc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/frol/rust-benchmark-option-replace_with-rfc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/frol/rust-benchmark-option-replace_with-rfc" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frol/rust-benchmark-option-replace_with-rfc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frol/rust-benchmark-option-replace_with-rfc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a79f0a3c095e82cb31849a723bc96b064ef944dc
[INFO] sha for GitHub repo frol/rust-benchmark-option-replace_with-rfc: a79f0a3c095e82cb31849a723bc96b064ef944dc
[INFO] validating manifest of frol/rust-benchmark-option-replace_with-rfc on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of frol/rust-benchmark-option-replace_with-rfc on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing frol/rust-benchmark-option-replace_with-rfc
[INFO] finished frobbing frol/rust-benchmark-option-replace_with-rfc
[INFO] frobbed toml for frol/rust-benchmark-option-replace_with-rfc written to work/ex/beta-1.37-6/sources/1.36.0/gh/frol/rust-benchmark-option-replace_with-rfc/Cargo.toml
[INFO] started frobbing frol/rust-benchmark-option-replace_with-rfc
[INFO] finished frobbing frol/rust-benchmark-option-replace_with-rfc
[INFO] frobbed toml for frol/rust-benchmark-option-replace_with-rfc written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frol/rust-benchmark-option-replace_with-rfc/Cargo.toml
[INFO] crate frol/rust-benchmark-option-replace_with-rfc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing frol/rust-benchmark-option-replace_with-rfc against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frol/rust-benchmark-option-replace_with-rfc:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 1039c3cf0e51b68e12ef616097fc2fedd0b43e616a7a63af256fab69de690854
[INFO] running `"docker" "start" "-a" "1039c3cf0e51b68e12ef616097fc2fedd0b43e616a7a63af256fab69de690854"`
[INFO] [stderr]    Compiling serde v1.0.68
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling criterion-stats v0.2.3
[INFO] [stderr]    Compiling itertools-num v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.68
[INFO] [stderr]    Compiling chrono v0.4.4
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling simplelog v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling handlebars v0.31.0
[INFO] [stderr]    Compiling criterion v0.2.3
[INFO] [stderr]    Compiling benchmark_replace_with v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.18s
[INFO] running `"docker" "inspect" "1039c3cf0e51b68e12ef616097fc2fedd0b43e616a7a63af256fab69de690854"`
[INFO] running `"docker" "rm" "-f" "1039c3cf0e51b68e12ef616097fc2fedd0b43e616a7a63af256fab69de690854"`
[INFO] [stdout] 1039c3cf0e51b68e12ef616097fc2fedd0b43e616a7a63af256fab69de690854
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frol/rust-benchmark-option-replace_with-rfc:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] adce40f97176360ced4c602cabf3b1ccdee16434621cd97e5d4323babf8f5c8d
[INFO] running `"docker" "start" "-a" "adce40f97176360ced4c602cabf3b1ccdee16434621cd97e5d4323babf8f5c8d"`
[INFO] [stderr]    Compiling benchmark_replace_with v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "adce40f97176360ced4c602cabf3b1ccdee16434621cd97e5d4323babf8f5c8d"`
[INFO] running `"docker" "rm" "-f" "adce40f97176360ced4c602cabf3b1ccdee16434621cd97e5d4323babf8f5c8d"`
[INFO] [stdout] adce40f97176360ced4c602cabf3b1ccdee16434621cd97e5d4323babf8f5c8d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frol/rust-benchmark-option-replace_with-rfc:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5ca6fbf92b098fa95f16491a23b0a4b32937febfe8b73290439780e0d02fd83f
[INFO] running `"docker" "start" "-a" "5ca6fbf92b098fa95f16491a23b0a4b32937febfe8b73290439780e0d02fd83f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/benchmark_replace_with-bc1b128f3f44c549
[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" "5ca6fbf92b098fa95f16491a23b0a4b32937febfe8b73290439780e0d02fd83f"`
[INFO] running `"docker" "rm" "-f" "5ca6fbf92b098fa95f16491a23b0a4b32937febfe8b73290439780e0d02fd83f"`
[INFO] [stdout] 5ca6fbf92b098fa95f16491a23b0a4b32937febfe8b73290439780e0d02fd83f