[INFO] updating cached repository veandco/git-ez
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/veandco/git-ez
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/veandco/git-ez" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/veandco/git-ez"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/veandco/git-ez'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/veandco/git-ez" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/veandco/git-ez"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/veandco/git-ez'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 08ff4cd3007b7082e76b104ed78bcde2bfe79748
[INFO] sha for GitHub repo veandco/git-ez: 08ff4cd3007b7082e76b104ed78bcde2bfe79748
[INFO] validating manifest of veandco/git-ez on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of veandco/git-ez on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing veandco/git-ez
[INFO] finished frobbing veandco/git-ez
[INFO] frobbed toml for veandco/git-ez written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/veandco/git-ez/Cargo.toml
[INFO] started frobbing veandco/git-ez
[INFO] finished frobbing veandco/git-ez
[INFO] frobbed toml for veandco/git-ez written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/veandco/git-ez/Cargo.toml
[INFO] crate veandco/git-ez already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking veandco/git-ez against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/veandco/git-ez:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 548ccbdd92e577c571e9c8a9a9bbe7fc67076094f25beacbea3b6941d93e7aa3
[INFO] running `"docker" "start" "-a" "548ccbdd92e577c571e9c8a9a9bbe7fc67076094f25beacbea3b6941d93e7aa3"`
[INFO] [stderr]     Checking dirs v1.0.3
[INFO] [stderr]    Compiling syn v0.15.5
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking git-ez v0.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |             let mut user = matching_user_from_config(name, email, &mut config);
[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/main.rs:194:25
[INFO] [stderr]     |
[INFO] [stderr] 194 |             if let Some(mut user) = user {
[INFO] [stderr]     |                         ----^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |             let mut user = matching_user_from_config(name, email, &mut config);
[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/main.rs:194:25
[INFO] [stderr]     |
[INFO] [stderr] 194 |             if let Some(mut user) = user {
[INFO] [stderr]     |                         ----^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.54s
[INFO] running `"docker" "inspect" "548ccbdd92e577c571e9c8a9a9bbe7fc67076094f25beacbea3b6941d93e7aa3"`
[INFO] running `"docker" "rm" "-f" "548ccbdd92e577c571e9c8a9a9bbe7fc67076094f25beacbea3b6941d93e7aa3"`
[INFO] [stdout] 548ccbdd92e577c571e9c8a9a9bbe7fc67076094f25beacbea3b6941d93e7aa3