[INFO] updating cached repository deckarep/rust-lifetimes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/deckarep/rust-lifetimes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/deckarep/rust-lifetimes" "work/ex/beta-1.38-1/sources/1.37.0/gh/deckarep/rust-lifetimes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/deckarep/rust-lifetimes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/deckarep/rust-lifetimes" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/deckarep/rust-lifetimes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/deckarep/rust-lifetimes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 72604f015ff215a30aaa8ac66fe7808ae7b88ea3
[INFO] sha for GitHub repo deckarep/rust-lifetimes: 72604f015ff215a30aaa8ac66fe7808ae7b88ea3
[INFO] validating manifest of deckarep/rust-lifetimes 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 deckarep/rust-lifetimes 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 deckarep/rust-lifetimes
[INFO] finished frobbing deckarep/rust-lifetimes
[INFO] frobbed toml for deckarep/rust-lifetimes written to work/ex/beta-1.38-1/sources/1.37.0/gh/deckarep/rust-lifetimes/Cargo.toml
[INFO] started frobbing deckarep/rust-lifetimes
[INFO] finished frobbing deckarep/rust-lifetimes
[INFO] frobbed toml for deckarep/rust-lifetimes written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/deckarep/rust-lifetimes/Cargo.toml
[INFO] crate deckarep/rust-lifetimes 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 deckarep/rust-lifetimes 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/deckarep/rust-lifetimes:/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] e90f429c144061bc2c5179418ba9463a34814143534d3e41317c2dd2d89b41da
[INFO] running `"docker" "start" "-a" "e90f429c144061bc2c5179418ba9463a34814143534d3e41317c2dd2d89b41da"`
[INFO] [stderr]    Compiling lifetime_fun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/employee.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "e90f429c144061bc2c5179418ba9463a34814143534d3e41317c2dd2d89b41da"`
[INFO] running `"docker" "rm" "-f" "e90f429c144061bc2c5179418ba9463a34814143534d3e41317c2dd2d89b41da"`
[INFO] [stdout] e90f429c144061bc2c5179418ba9463a34814143534d3e41317c2dd2d89b41da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/deckarep/rust-lifetimes:/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] 07c2caa97ba4d368d9eace239c824c7ac14abcec54aad9b69546d5e2a94216be
[INFO] running `"docker" "start" "-a" "07c2caa97ba4d368d9eace239c824c7ac14abcec54aad9b69546d5e2a94216be"`
[INFO] [stderr]    Compiling lifetime_fun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/employee.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "07c2caa97ba4d368d9eace239c824c7ac14abcec54aad9b69546d5e2a94216be"`
[INFO] running `"docker" "rm" "-f" "07c2caa97ba4d368d9eace239c824c7ac14abcec54aad9b69546d5e2a94216be"`
[INFO] [stdout] 07c2caa97ba4d368d9eace239c824c7ac14abcec54aad9b69546d5e2a94216be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/deckarep/rust-lifetimes:/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] 66966446e56b654e4bfa6eb3083dded9c8d61b2926eb006bd523f3eb17e6d155
[INFO] running `"docker" "start" "-a" "66966446e56b654e4bfa6eb3083dded9c8d61b2926eb006bd523f3eb17e6d155"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lifetime_fun-acf2cbfc2bb5479b
[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" "66966446e56b654e4bfa6eb3083dded9c8d61b2926eb006bd523f3eb17e6d155"`
[INFO] running `"docker" "rm" "-f" "66966446e56b654e4bfa6eb3083dded9c8d61b2926eb006bd523f3eb17e6d155"`
[INFO] [stdout] 66966446e56b654e4bfa6eb3083dded9c8d61b2926eb006bd523f3eb17e6d155