[INFO] crate fre 0.2.0 is already in cache
[INFO] extracting crate fre 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/fre/0.2.0
[INFO] extracting crate fre 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fre/0.2.0
[INFO] validating manifest of fre-0.2.0 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 fre-0.2.0 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 fre-0.2.0
[INFO] finished frobbing fre-0.2.0
[INFO] frobbed toml for fre-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fre/0.2.0/Cargo.toml
[INFO] started frobbing fre-0.2.0
[INFO] finished frobbing fre-0.2.0
[INFO] frobbed toml for fre-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fre/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing fre-0.2.0 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fre/0.2.0:/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] c8fda1e1e1bbc42d6e109ebafb348d9e05a5b6ce25a841df5e9ef2851ec1a145
[INFO] running `"docker" "start" "-a" "c8fda1e1e1bbc42d6e109ebafb348d9e05a5b6ce25a841df5e9ef2851ec1a145"`
[INFO] [stderr]    Compiling escargot v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling assert_cmd v0.10.2
[INFO] [stderr]    Compiling fre v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/store/mod.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.71s
[INFO] running `"docker" "inspect" "c8fda1e1e1bbc42d6e109ebafb348d9e05a5b6ce25a841df5e9ef2851ec1a145"`
[INFO] running `"docker" "rm" "-f" "c8fda1e1e1bbc42d6e109ebafb348d9e05a5b6ce25a841df5e9ef2851ec1a145"`
[INFO] [stdout] c8fda1e1e1bbc42d6e109ebafb348d9e05a5b6ce25a841df5e9ef2851ec1a145
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fre/0.2.0:/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] 919eb78a7eb94647b8acbe97f68684317129624b26cbec4b8371a5c0aa8d0b5c
[INFO] running `"docker" "start" "-a" "919eb78a7eb94647b8acbe97f68684317129624b26cbec4b8371a5c0aa8d0b5c"`
[INFO] [stderr]    Compiling fre v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/store/mod.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::common`
[INFO] [stderr]  --> tests/integration/flags.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::common;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `"docker" "inspect" "919eb78a7eb94647b8acbe97f68684317129624b26cbec4b8371a5c0aa8d0b5c"`
[INFO] running `"docker" "rm" "-f" "919eb78a7eb94647b8acbe97f68684317129624b26cbec4b8371a5c0aa8d0b5c"`
[INFO] [stdout] 919eb78a7eb94647b8acbe97f68684317129624b26cbec4b8371a5c0aa8d0b5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fre/0.2.0:/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] a7061efccd9a11ed59ab61230f11f436e80d71cb6fac788bab1d4a1d1b0a69c2
[INFO] running `"docker" "start" "-a" "a7061efccd9a11ed59ab61230f11f436e80d71cb6fac788bab1d4a1d1b0a69c2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fre-1a05935d2c0b2aec
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test stats::tests::compare_with_func ... ok
[INFO] [stdout] test stats::tests::compare_with_enum ... ok
[INFO] [stdout] test stats::tests::get_frecency_one_half_life ... ok
[INFO] [stdout] test stats::tests::secs_elapsed_one_second ... ok
[INFO] [stdout] test stats::tests::secs_since_access ... ok
[INFO] [stdout] test stats::tests::get_frecency_two_half_lives ... ok
[INFO] [stdout] test stats::tests::reset_time ... ok
[INFO] [stdout] test stats::tests::new_item_stats ... ok
[INFO] [stdout] test args::tests::get_store_path_file ... ok
[INFO] [stdout] test stats::tests::update_num_accesses ... ok
[INFO] [stdout] test stats::tests::update_last_access ... ok
[INFO] [stdout] test stats::tests::to_string_no_stats ... ok
[INFO] [stdout] test store::tests::add_existing ... ok
[INFO] [stdout] test store::tests::add_new ... ok
[INFO] [stdout] test stats::tests::update_score ... ok
[INFO] [stdout] test stats::tests::to_string_stats ... ok
[INFO] [stdout] test args::tests::get_store_path_full ... ok
[INFO] [stdout] test stats::tests::set_half_life ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fre-71a1f2cb2f9dfe10
[INFO] [stdout] test store::tests::adjust_new ... ok
[INFO] [stdout] test store::tests::get_exists ... ok
[INFO] [stdout] test store::tests::get_not_exists ... ok
[INFO] [stdout] test store::tests::set_halflife ... ok
[INFO] [stdout] test store::tests::adjust_existing ... ok
[INFO] [stdout] test store::tests::reset_time ... ok
[INFO] [stdout] test store::tests::truncate_less ... ok
[INFO] [stdout] test store::tests::sorted_frecent2 ... ok
[INFO] [stdout] test store::tests::sorted_frecent ... ok
[INFO] [stdout] test store::tests::sorted_frequent ... ok
[INFO] [stdout] test store::tests::sorted_recent ... ok
[INFO] [stdout] test store::tests::truncate_greater ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lib-b6edb2e89342fd13
[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] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test integration::errors::non_writable ... test integration::errors::non_writable has been running for over 60 seconds
[INFO] [stdout] test integration::flags::version_long ... test integration::flags::version_long has been running for over 60 seconds
[INFO] [stdout] test integration::errors::invalid_store ... test integration::errors::invalid_store has been running for over 60 seconds
[INFO] [stdout] test integration::flags::version_short ... test integration::flags::version_short has been running for over 60 seconds
[INFO] [stdout] test integration::sort::change_half_life_maintain_frecency ... test integration::sort::change_half_life_maintain_frecency has been running for over 60 seconds
[INFO] [stdout] test integration::sort::change_half_life_new_decay ... test integration::sort::change_half_life_new_decay has been running for over 60 seconds
[INFO] [stdout] test integration::sort::limit_too_many ... test integration::sort::limit_too_many has been running for over 60 seconds
[INFO] [stdout] test integration::sort::limit ... test integration::sort::limit has been running for over 60 seconds
[INFO] [stdout] test integration::errors::invalid_store ... ok
[INFO] [stdout] test integration::flags::version_short ... ok
[INFO] [stdout] test integration::sort::change_half_life_maintain_frecency ... ok
[INFO] [stdout] test integration::sort::limit ... ok
[INFO] [stdout] test integration::flags::version_long ... ok
[INFO] [stdout] test integration::sort::sorted_invalid ... ok
[INFO] [stdout] test integration::sort::limit_too_many ... ok
[INFO] [stdout] test integration::errors::non_writable ... ok
[INFO] [stdout] test integration::sort::change_half_life_new_decay ... ok
[INFO] [stdout] test integration::sort::sorted_frecent ... ok
[INFO] [stdout] test integration::sort::sorted_frequent ... ok
[INFO] [stdout] test integration::sort::sorted_stats ... ok
[INFO] [stdout] test integration::sort::sorted_recent ... ok
[INFO] [stdout] test integration::weight::add_existing_increases ... ok
[INFO] [stdout] test integration::weight::add_create ... ok
[INFO] [stdout] test integration::sort::truncate ... ok
[INFO] [stdout] test integration::weight::add_existing_exists ... ok
[INFO] [stdout] test integration::weight::decrease_accesses ... ok
[INFO] [stdout] test integration::weight::decrease_score ... ok
[INFO] [stdout] test integration::weight::increase_accesses ... ok
[INFO] [stdout] test integration::weight::increase_score ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fre
[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" "a7061efccd9a11ed59ab61230f11f436e80d71cb6fac788bab1d4a1d1b0a69c2"`
[INFO] running `"docker" "rm" "-f" "a7061efccd9a11ed59ab61230f11f436e80d71cb6fac788bab1d4a1d1b0a69c2"`
[INFO] [stdout] a7061efccd9a11ed59ab61230f11f436e80d71cb6fac788bab1d4a1d1b0a69c2