[INFO] fetching crate gstuff 0.5.3...
[INFO] extracting crate gstuff 0.5.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/gstuff/0.5.3
[INFO] extracting crate gstuff 0.5.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gstuff/0.5.3
[INFO] validating manifest of gstuff-0.5.3 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 gstuff-0.5.3 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 gstuff-0.5.3
[INFO] finished frobbing gstuff-0.5.3
[INFO] frobbed toml for gstuff-0.5.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/gstuff/0.5.3/Cargo.toml
[INFO] started frobbing gstuff-0.5.3
[INFO] finished frobbing gstuff-0.5.3
[INFO] frobbed toml for gstuff-0.5.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gstuff/0.5.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 gstuff-0.5.3 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-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gstuff/0.5.3:/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] ed09abd389822b70469cb8d1bcbc0d802c925b8a71b589b0b8d3c422140b62f4
[INFO] running `"docker" "start" "-a" "ed09abd389822b70469cb8d1bcbc0d802c925b8a71b589b0b8d3c422140b62f4"`
[INFO] [stderr]    Compiling gstuff v0.5.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> gstuff.rs:229:37
[INFO] [stderr]     |
[INFO] [stderr] 229 | pub fn with_hostname (visitor: &mut FnMut (&[u8])) -> Result<(), std::io::Error> {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut (&[u8])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `io` is imported redundantly
[INFO] [stderr]    --> gstuff.rs:232:7
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io;
[INFO] [stderr]     |     ------- the item `io` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 232 |   use std::io;
[INFO] [stderr]     |       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "ed09abd389822b70469cb8d1bcbc0d802c925b8a71b589b0b8d3c422140b62f4"`
[INFO] running `"docker" "rm" "-f" "ed09abd389822b70469cb8d1bcbc0d802c925b8a71b589b0b8d3c422140b62f4"`
[INFO] [stdout] ed09abd389822b70469cb8d1bcbc0d802c925b8a71b589b0b8d3c422140b62f4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gstuff/0.5.3:/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] 2fb5f0bab3a8848f430c9c343de7f165c0d315b833231c736395e7ccbcf648f4
[INFO] running `"docker" "start" "-a" "2fb5f0bab3a8848f430c9c343de7f165c0d315b833231c736395e7ccbcf648f4"`
[INFO] [stderr]    Compiling gstuff v0.5.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> gstuff.rs:229:37
[INFO] [stderr]     |
[INFO] [stderr] 229 | pub fn with_hostname (visitor: &mut FnMut (&[u8])) -> Result<(), std::io::Error> {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut (&[u8])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `io` is imported redundantly
[INFO] [stderr]    --> gstuff.rs:232:7
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io;
[INFO] [stderr]     |     ------- the item `io` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 232 |   use std::io;
[INFO] [stderr]     |       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "2fb5f0bab3a8848f430c9c343de7f165c0d315b833231c736395e7ccbcf648f4"`
[INFO] running `"docker" "rm" "-f" "2fb5f0bab3a8848f430c9c343de7f165c0d315b833231c736395e7ccbcf648f4"`
[INFO] [stdout] 2fb5f0bab3a8848f430c9c343de7f165c0d315b833231c736395e7ccbcf648f4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gstuff/0.5.3:/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] 5993cdde976726f22827adf2250dac6f407f4efdc9508097738cd39ff8d16a1d
[INFO] running `"docker" "start" "-a" "5993cdde976726f22827adf2250dac6f407f4efdc9508097738cd39ff8d16a1d"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gstuff-e006400c9c7f48c7
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_hostname ... ok
[INFO] [stdout] test test_oneshot ... ok
[INFO] [stdout] test test_status_line ... ok
[INFO] [stdout] test test_slurp_prog ... ok
[INFO] [stdout] test test_now_float ... ok
[INFO] [stdout] test test_now_ms ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5993cdde976726f22827adf2250dac6f407f4efdc9508097738cd39ff8d16a1d"`
[INFO] running `"docker" "rm" "-f" "5993cdde976726f22827adf2250dac6f407f4efdc9508097738cd39ff8d16a1d"`
[INFO] [stdout] 5993cdde976726f22827adf2250dac6f407f4efdc9508097738cd39ff8d16a1d