[INFO] updating cached repository kbknapp/cargo-outdated
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kbknapp/cargo-outdated
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kbknapp/cargo-outdated" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kbknapp/cargo-outdated"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kbknapp/cargo-outdated'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kbknapp/cargo-outdated" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/kbknapp/cargo-outdated"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/kbknapp/cargo-outdated'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6b0c61de1273aaf020ab088cddc9653262b8b32
[INFO] sha for GitHub repo kbknapp/cargo-outdated: c6b0c61de1273aaf020ab088cddc9653262b8b32
[INFO] validating manifest of kbknapp/cargo-outdated on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kbknapp/cargo-outdated on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kbknapp/cargo-outdated
[INFO] finished frobbing kbknapp/cargo-outdated
[INFO] frobbed toml for kbknapp/cargo-outdated written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kbknapp/cargo-outdated/Cargo.toml
[INFO] started frobbing kbknapp/cargo-outdated
[INFO] finished frobbing kbknapp/cargo-outdated
[INFO] frobbed toml for kbknapp/cargo-outdated written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/kbknapp/cargo-outdated/Cargo.toml
[INFO] crate kbknapp/cargo-outdated already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kbknapp/cargo-outdated against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-7/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/kbknapp/cargo-outdated:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8fc2be4c3f8eb51824cbd9572584d84546b0c776e025b4383fda36ec25c4a05a
[INFO] running `"docker" "start" "-a" "8fc2be4c3f8eb51824cbd9572584d84546b0c776e025b4383fda36ec25c4a05a"`
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking home v0.3.4
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.1
[INFO] [stderr]    Compiling curl-sys v0.4.18
[INFO] [stderr]     Checking tabwriter v1.1.0
[INFO] [stderr]     Checking jobserver v0.1.13
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking crypto-hash v0.3.3
[INFO] [stderr]     Checking globset v0.4.3
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking serde_ignored v0.0.4
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking ignore v0.4.7
[INFO] [stderr]     Checking opener v0.3.2
[INFO] [stderr]     Checking rustfix v0.4.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling im-rc v12.3.4
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]     Checking crates-io v0.24.0
[INFO] [stderr]     Checking git2 v0.8.0
[INFO] [stderr]     Checking git2-curl v0.9.0
[INFO] [stderr]     Checking cargo v0.36.0
[INFO] [stderr]     Checking cargo-outdated v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cargo_ops/temp_project.rs:438:25
[INFO] [stderr]     |
[INFO] [stderr] 438 |                     let mut summary;
[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/cargo_ops/temp_project.rs:438:25
[INFO] [stderr]     |
[INFO] [stderr] 438 |                     let mut summary;
[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 1m 33s
[INFO] running `"docker" "inspect" "8fc2be4c3f8eb51824cbd9572584d84546b0c776e025b4383fda36ec25c4a05a"`
[INFO] running `"docker" "rm" "-f" "8fc2be4c3f8eb51824cbd9572584d84546b0c776e025b4383fda36ec25c4a05a"`
[INFO] [stdout] 8fc2be4c3f8eb51824cbd9572584d84546b0c776e025b4383fda36ec25c4a05a