[INFO] cloning repository https://github.com/adelelopez/khovanov
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adelelopez/khovanov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadelelopez%2Fkhovanov"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadelelopez%2Fkhovanov'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f0566d6007b183bd06e4a3176470d030c8983de
[INFO] checking adelelopez/khovanov against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadelelopez%2Fkhovanov" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adelelopez/khovanov on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/adelelopez/khovanov
[INFO] finished tweaking git repo https://github.com/adelelopez/khovanov
[INFO] tweaked toml for git repo https://github.com/adelelopez/khovanov written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/adelelopez/khovanov already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-10/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4d5bb865be24066527e6b079ab27e91f116f664a23f19ba57e804249d61d82a6
[INFO] running `"docker" "start" "-a" "4d5bb865be24066527e6b079ab27e91f116f664a23f19ba57e804249d61d82a6"`
[INFO] [stderr]     Checking khovanov v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:66:38
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     (true, false) => try!(write!(f, "-")),
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:67:38
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     (false, true) => try!(write!(f, " + ")),
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:68:39
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     (false, false) => try!(write!(f, " - ")),
[INFO] [stderr]    |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:75:21
[INFO] [stderr]    |
[INFO] [stderr] 75 |                     try!(write!(f, "{}", (*coeff).abs()))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:79:21
[INFO] [stderr]    |
[INFO] [stderr] 79 |                     try!(write!(f, "q"))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     try!(write!(f, "q^{}", exp))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             try!(write!(f, "0"))
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:66:38
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     (true, false) => try!(write!(f, "-")),
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:67:38
[INFO] [stderr]    |
[INFO] [stderr] 67 |                     (false, true) => try!(write!(f, " + ")),
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:68:39
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     (false, false) => try!(write!(f, " - ")),
[INFO] [stderr]    |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:75:21
[INFO] [stderr]    |
[INFO] [stderr] 75 |                     try!(write!(f, "{}", (*coeff).abs()))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:79:21
[INFO] [stderr]    |
[INFO] [stderr] 79 |                     try!(write!(f, "q"))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     try!(write!(f, "q^{}", exp))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/poly.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             try!(write!(f, "0"))
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "4d5bb865be24066527e6b079ab27e91f116f664a23f19ba57e804249d61d82a6"`
[INFO] running `"docker" "rm" "-f" "4d5bb865be24066527e6b079ab27e91f116f664a23f19ba57e804249d61d82a6"`
[INFO] [stdout] 4d5bb865be24066527e6b079ab27e91f116f664a23f19ba57e804249d61d82a6