[INFO] updating cached repository getslash/scotty-transporter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/getslash/scotty-transporter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/getslash/scotty-transporter" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/getslash/scotty-transporter"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/getslash/scotty-transporter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/getslash/scotty-transporter" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/getslash/scotty-transporter"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/getslash/scotty-transporter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6e6b2488b76e38c6a90ce903e27c9102b6c79a8
[INFO] sha for GitHub repo getslash/scotty-transporter: f6e6b2488b76e38c6a90ce903e27c9102b6c79a8
[INFO] validating manifest of getslash/scotty-transporter on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of getslash/scotty-transporter on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing getslash/scotty-transporter
[INFO] finished frobbing getslash/scotty-transporter
[INFO] frobbed toml for getslash/scotty-transporter written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/getslash/scotty-transporter/Cargo.toml
[INFO] started frobbing getslash/scotty-transporter
[INFO] finished frobbing getslash/scotty-transporter
[INFO] frobbed toml for getslash/scotty-transporter written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/getslash/scotty-transporter/Cargo.toml
[INFO] crate getslash/scotty-transporter already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking getslash/scotty-transporter against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/getslash/scotty-transporter:/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=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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b034a418addb3e4b8cfccc85ec8928cfa4731f4ce5f8d39d18d4c81f7c56ecec
[INFO] running `"docker" "start" "-a" "b034a418addb3e4b8cfccc85ec8928cfa4731f4ce5f8d39d18d4c81f7c56ecec"`
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking fern v0.5.6
[INFO] [stderr]    Compiling im v12.1.0
[INFO] [stderr]    Compiling sentry v0.12.0
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking debugid v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.2
[INFO] [stderr]     Checking sentry-types v0.8.1
[INFO] [stderr]     Checking transporter v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/scotty.rs:154:22
[INFO] [stderr]     |
[INFO] [stderr] 154 |         err: Option<&Error>,
[INFO] [stderr]     |                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/scotty.rs:154:22
[INFO] [stderr]     |
[INFO] [stderr] 154 |         err: Option<&Error>,
[INFO] [stderr]     |                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scotty.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let mut response = self
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scotty.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let mut response = self
[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 19.78s
[INFO] running `"docker" "inspect" "b034a418addb3e4b8cfccc85ec8928cfa4731f4ce5f8d39d18d4c81f7c56ecec"`
[INFO] running `"docker" "rm" "-f" "b034a418addb3e4b8cfccc85ec8928cfa4731f4ce5f8d39d18d4c81f7c56ecec"`
[INFO] [stdout] b034a418addb3e4b8cfccc85ec8928cfa4731f4ce5f8d39d18d4c81f7c56ecec