[INFO] crate dotcopter 0.4.2 is already in cache
[INFO] extracting crate dotcopter 0.4.2 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/dotcopter/0.4.2
[INFO] extracting crate dotcopter 0.4.2 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/dotcopter/0.4.2
[INFO] validating manifest of dotcopter-0.4.2 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dotcopter-0.4.2 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dotcopter-0.4.2
[INFO] finished frobbing dotcopter-0.4.2
[INFO] frobbed toml for dotcopter-0.4.2 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/dotcopter/0.4.2/Cargo.toml
[INFO] started frobbing dotcopter-0.4.2
[INFO] finished frobbing dotcopter-0.4.2
[INFO] frobbed toml for dotcopter-0.4.2 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/dotcopter/0.4.2/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dotcopter-0.4.2 against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/dotcopter/0.4.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5176b568a17a7a8f5e6f82db1beb5f63d98d832ee4fc4fb68e9a3fbcf95d6af4
[INFO] running `"docker" "start" "-a" "5176b568a17a7a8f5e6f82db1beb5f63d98d832ee4fc4fb68e9a3fbcf95d6af4"`
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking dotcopter v0.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `slog_term` is imported redundantly
[INFO] [stderr]    --> src/config.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |     use slog_term;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:17:1
[INFO] [stderr]     |
[INFO] [stderr] 17  | extern crate slog_term;
[INFO] [stderr]     | ----------------------- the item `slog_term` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `std` is imported redundantly
[INFO] [stderr]    --> src/config.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     use std;
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `slog_term` is imported redundantly
[INFO] [stderr]   --> src/mutate.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     use slog_term;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | extern crate slog_term;
[INFO] [stderr]    | ----------------------- the item `slog_term` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `std` is imported redundantly
[INFO] [stderr]   --> src/mutate.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     use std;
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.05s
[INFO] running `"docker" "inspect" "5176b568a17a7a8f5e6f82db1beb5f63d98d832ee4fc4fb68e9a3fbcf95d6af4"`
[INFO] running `"docker" "rm" "-f" "5176b568a17a7a8f5e6f82db1beb5f63d98d832ee4fc4fb68e9a3fbcf95d6af4"`
[INFO] [stdout] 5176b568a17a7a8f5e6f82db1beb5f63d98d832ee4fc4fb68e9a3fbcf95d6af4