[INFO] cloning repository timglabisch/rust_read_stdin_benchmark [INFO] running `"git" "clone" "--bare" "git://github.com/timglabisch/rust_read_stdin_benchmark.git" "work/cache/sources/gh/timglabisch/rust_read_stdin_benchmark"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/timglabisch/rust_read_stdin_benchmark'... [INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/rust_read_stdin_benchmark" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/rust_read_stdin_benchmark" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/timglabisch/rust_read_stdin_benchmark"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/timglabisch/rust_read_stdin_benchmark'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 0413bf50024e73fe466034dc1b8aebd31698d54e [INFO] sha for GitHub repo timglabisch/rust_read_stdin_benchmark: 0413bf50024e73fe466034dc1b8aebd31698d54e [INFO] validating manifest of timglabisch/rust_read_stdin_benchmark 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 timglabisch/rust_read_stdin_benchmark 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 timglabisch/rust_read_stdin_benchmark [INFO] finished frobbing timglabisch/rust_read_stdin_benchmark [INFO] frobbed toml for timglabisch/rust_read_stdin_benchmark written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark/Cargo.toml [INFO] started frobbing timglabisch/rust_read_stdin_benchmark [INFO] finished frobbing timglabisch/rust_read_stdin_benchmark [INFO] frobbed toml for timglabisch/rust_read_stdin_benchmark written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/timglabisch/rust_read_stdin_benchmark/Cargo.toml [INFO] crate timglabisch/rust_read_stdin_benchmark 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] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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 timglabisch/rust_read_stdin_benchmark against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark:/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] 33fe8ebdc05a41b87eba8febed2626acc887a9cb373b22ea303fda05f25bf0c8 [INFO] running `"docker" "start" "-a" "33fe8ebdc05a41b87eba8febed2626acc887a9cb373b22ea303fda05f25bf0c8"` [INFO] [stderr] Compiling nom v1.2.4 [INFO] [stderr] Compiling bytereader v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/bin/consumer.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/bin/consumer.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `row` [INFO] [stderr] --> src/bin/slow_consumer.rs:49:13 [INFO] [stderr] | [INFO] [stderr] 49 | let row = Row { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_row` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/consumer.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | let mut a = std::io::stdin(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Row` [INFO] [stderr] --> src/bin/consumer.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | struct Row <'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.74s [INFO] running `"docker" "inspect" "33fe8ebdc05a41b87eba8febed2626acc887a9cb373b22ea303fda05f25bf0c8"` [INFO] running `"docker" "rm" "-f" "33fe8ebdc05a41b87eba8febed2626acc887a9cb373b22ea303fda05f25bf0c8"` [INFO] [stdout] 33fe8ebdc05a41b87eba8febed2626acc887a9cb373b22ea303fda05f25bf0c8 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark:/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] 1a8af821329dabedf546d676eabacc4a64fc8276609bb3825bcdb3abdd0e4182 [INFO] running `"docker" "start" "-a" "1a8af821329dabedf546d676eabacc4a64fc8276609bb3825bcdb3abdd0e4182"` [INFO] [stderr] Compiling bytereader v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `row` [INFO] [stderr] --> src/bin/slow_consumer.rs:49:13 [INFO] [stderr] | [INFO] [stderr] 49 | let row = Row { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_row` [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/bin/consumer.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/bin/consumer.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/consumer.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | let mut a = std::io::stdin(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Row` [INFO] [stderr] --> src/bin/consumer.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | struct Row <'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.71s [INFO] running `"docker" "inspect" "1a8af821329dabedf546d676eabacc4a64fc8276609bb3825bcdb3abdd0e4182"` [INFO] running `"docker" "rm" "-f" "1a8af821329dabedf546d676eabacc4a64fc8276609bb3825bcdb3abdd0e4182"` [INFO] [stdout] 1a8af821329dabedf546d676eabacc4a64fc8276609bb3825bcdb3abdd0e4182 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/timglabisch/rust_read_stdin_benchmark:/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] 651583588dea5265571f1beb2a28345d41c7cb39e0fd0cf83b33a0dd19967b9f [INFO] running `"docker" "start" "-a" "651583588dea5265571f1beb2a28345d41c7cb39e0fd0cf83b33a0dd19967b9f"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/consumer-d285b7aedf56627d [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] [stderr] Running /opt/crater/target/debug/deps/producer-b6319ac1ae494b8b [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] [stderr] Running /opt/crater/target/debug/deps/slow_consumer-3cf92d7de3d0f1e6 [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" "651583588dea5265571f1beb2a28345d41c7cb39e0fd0cf83b33a0dd19967b9f"` [INFO] running `"docker" "rm" "-f" "651583588dea5265571f1beb2a28345d41c7cb39e0fd0cf83b33a0dd19967b9f"` [INFO] [stdout] 651583588dea5265571f1beb2a28345d41c7cb39e0fd0cf83b33a0dd19967b9f