[INFO] updating cached repository carlosgaldino/emacs-error
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/carlosgaldino/emacs-error
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/carlosgaldino/emacs-error" "work/ex/beta-1.38-1/sources/1.37.0/gh/carlosgaldino/emacs-error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/carlosgaldino/emacs-error'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/carlosgaldino/emacs-error" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/carlosgaldino/emacs-error"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/carlosgaldino/emacs-error'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d3676e90e4822c8912967d9c73e34b730595d1de
[INFO] sha for GitHub repo carlosgaldino/emacs-error: d3676e90e4822c8912967d9c73e34b730595d1de
[INFO] validating manifest of carlosgaldino/emacs-error 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 carlosgaldino/emacs-error 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 carlosgaldino/emacs-error
[INFO] finished frobbing carlosgaldino/emacs-error
[INFO] frobbed toml for carlosgaldino/emacs-error written to work/ex/beta-1.38-1/sources/1.37.0/gh/carlosgaldino/emacs-error/Cargo.toml
[INFO] started frobbing carlosgaldino/emacs-error
[INFO] finished frobbing carlosgaldino/emacs-error
[INFO] frobbed toml for carlosgaldino/emacs-error written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/carlosgaldino/emacs-error/Cargo.toml
[INFO] crate carlosgaldino/emacs-error 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] [stderr]     Blocking waiting for file lock on package cache
[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 carlosgaldino/emacs-error 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/carlosgaldino/emacs-error:/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] 3167573f1bc01d2d88649b9a9c13542866d8dd819f7820641f41b7b39c1d6751
[INFO] running `"docker" "start" "-a" "3167573f1bc01d2d88649b9a9c13542866d8dd819f7820641f41b7b39c1d6751"`
[INFO] [stderr]    Compiling emacs-error v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/utils.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "3167573f1bc01d2d88649b9a9c13542866d8dd819f7820641f41b7b39c1d6751"`
[INFO] running `"docker" "rm" "-f" "3167573f1bc01d2d88649b9a9c13542866d8dd819f7820641f41b7b39c1d6751"`
[INFO] [stdout] 3167573f1bc01d2d88649b9a9c13542866d8dd819f7820641f41b7b39c1d6751
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/carlosgaldino/emacs-error:/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] f1457460a68d41ab8b616812ac6801c2f40617cc8ea6ca99a1f9db0642d61f8a
[INFO] running `"docker" "start" "-a" "f1457460a68d41ab8b616812ac6801c2f40617cc8ea6ca99a1f9db0642d61f8a"`
[INFO] [stderr]    Compiling emacs-error v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/utils.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "f1457460a68d41ab8b616812ac6801c2f40617cc8ea6ca99a1f9db0642d61f8a"`
[INFO] running `"docker" "rm" "-f" "f1457460a68d41ab8b616812ac6801c2f40617cc8ea6ca99a1f9db0642d61f8a"`
[INFO] [stdout] f1457460a68d41ab8b616812ac6801c2f40617cc8ea6ca99a1f9db0642d61f8a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/carlosgaldino/emacs-error:/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] 48e95f89a010e791a0b677e6668e3c6a46955acea91c96aa77e8d18109fb0f8e
[INFO] running `"docker" "start" "-a" "48e95f89a010e791a0b677e6668e3c6a46955acea91c96aa77e8d18109fb0f8e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/emacs_error-537dd208f06dcf66
[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/emacs_error-fb1153641a0690e3
[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]    Doc-tests emacs-error
[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" "48e95f89a010e791a0b677e6668e3c6a46955acea91c96aa77e8d18109fb0f8e"`
[INFO] running `"docker" "rm" "-f" "48e95f89a010e791a0b677e6668e3c6a46955acea91c96aa77e8d18109fb0f8e"`
[INFO] [stdout] 48e95f89a010e791a0b677e6668e3c6a46955acea91c96aa77e8d18109fb0f8e