[INFO] cloning repository https://github.com/adelelopez/khovanov
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadelelopez%2Fkhovanov'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f0566d6007b183bd06e4a3176470d030c8983de
[INFO] checking adelelopez/khovanov against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadelelopez%2Fkhovanov" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adelelopez/khovanov on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-13/source/Cargo.toml
[INFO] crate git repo https://github.com/adelelopez/khovanov already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcaa49cd9c740054454ca61da771efa558be33acae78ec1607cad515f4d9e17d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dcaa49cd9c740054454ca61da771efa558be33acae78ec1607cad515f4d9e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcaa49cd9c740054454ca61da771efa558be33acae78ec1607cad515f4d9e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcaa49cd9c740054454ca61da771efa558be33acae78ec1607cad515f4d9e17d", kill_on_drop: false }`
[INFO] [stdout] dcaa49cd9c740054454ca61da771efa558be33acae78ec1607cad515f4d9e17d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 617f685d83c37cab2e488f924438ddd8d84ac2b50b9d238c20760f8db9f632b8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "617f685d83c37cab2e488f924438ddd8d84ac2b50b9d238c20760f8db9f632b8", kill_on_drop: false }`
[INFO] [stderr]     Checking khovanov v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:66:38
[INFO] [stdout]    |
[INFO] [stdout] 66 |                     (true, false) => try!(write!(f, "-")),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:67:38
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     (false, true) => try!(write!(f, " + ")),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:68:39
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     (false, false) => try!(write!(f, " - ")),
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     try!(write!(f, "{}", (*coeff).abs()))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:79:21
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     try!(write!(f, "q"))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     try!(write!(f, "q^{}", exp))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try!(write!(f, "0"))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:66:38
[INFO] [stdout]    |
[INFO] [stdout] 66 |                     (true, false) => try!(write!(f, "-")),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:67:38
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     (false, true) => try!(write!(f, " + ")),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:68:39
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     (false, false) => try!(write!(f, " - ")),
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     try!(write!(f, "{}", (*coeff).abs()))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:79:21
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     try!(write!(f, "q"))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     try!(write!(f, "q^{}", exp))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/poly.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try!(write!(f, "0"))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "617f685d83c37cab2e488f924438ddd8d84ac2b50b9d238c20760f8db9f632b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617f685d83c37cab2e488f924438ddd8d84ac2b50b9d238c20760f8db9f632b8", kill_on_drop: false }`
[INFO] [stdout] 617f685d83c37cab2e488f924438ddd8d84ac2b50b9d238c20760f8db9f632b8