[INFO] crate print-csv 0.1.1 is already in cache
[INFO] extracting crate print-csv 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/print-csv/0.1.1
[INFO] extracting crate print-csv 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/print-csv/0.1.1
[INFO] validating manifest of print-csv-0.1.1 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 print-csv-0.1.1 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 print-csv-0.1.1
[INFO] finished frobbing print-csv-0.1.1
[INFO] frobbed toml for print-csv-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/print-csv/0.1.1/Cargo.toml
[INFO] started frobbing print-csv-0.1.1
[INFO] finished frobbing print-csv-0.1.1
[INFO] frobbed toml for print-csv-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/print-csv/0.1.1/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 print-csv-0.1.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/print-csv/0.1.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d0018b09a35022a883b117cae1bd9497154fdea85ff069c10fee16434d2c9aa9
[INFO] running `"docker" "start" "-a" "d0018b09a35022a883b117cae1bd9497154fdea85ff069c10fee16434d2c9aa9"`
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling bstr v0.2.6
[INFO] [stderr]    Compiling pager v0.14.0
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling print-csv v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let mut stdin = 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]     Finished dev [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `"docker" "inspect" "d0018b09a35022a883b117cae1bd9497154fdea85ff069c10fee16434d2c9aa9"`
[INFO] running `"docker" "rm" "-f" "d0018b09a35022a883b117cae1bd9497154fdea85ff069c10fee16434d2c9aa9"`
[INFO] [stdout] d0018b09a35022a883b117cae1bd9497154fdea85ff069c10fee16434d2c9aa9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/print-csv/0.1.1:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5a7f01751876a960addca02f7c9f90e92e866c08ada203d58a7d29b01557870f
[INFO] running `"docker" "start" "-a" "5a7f01751876a960addca02f7c9f90e92e866c08ada203d58a7d29b01557870f"`
[INFO] [stderr]    Compiling print-csv v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let mut stdin = 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "5a7f01751876a960addca02f7c9f90e92e866c08ada203d58a7d29b01557870f"`
[INFO] running `"docker" "rm" "-f" "5a7f01751876a960addca02f7c9f90e92e866c08ada203d58a7d29b01557870f"`
[INFO] [stdout] 5a7f01751876a960addca02f7c9f90e92e866c08ada203d58a7d29b01557870f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/print-csv/0.1.1:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] d9d5f3fbd42e60b509cbf9b06d4e96598cc6df075ba51c1ee1b9f6a9bdc6b8e4
[INFO] running `"docker" "start" "-a" "d9d5f3fbd42e60b509cbf9b06d4e96598cc6df075ba51c1ee1b9f6a9bdc6b8e4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/print_csv-6010933f70973a3f
[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" "d9d5f3fbd42e60b509cbf9b06d4e96598cc6df075ba51c1ee1b9f6a9bdc6b8e4"`
[INFO] running `"docker" "rm" "-f" "d9d5f3fbd42e60b509cbf9b06d4e96598cc6df075ba51c1ee1b9f6a9bdc6b8e4"`
[INFO] [stdout] d9d5f3fbd42e60b509cbf9b06d4e96598cc6df075ba51c1ee1b9f6a9bdc6b8e4