[INFO] cloning repository https://github.com/amilajack/simplex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amilajack/simplex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Familajack%2Fsimplex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Familajack%2Fsimplex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 150bb73de9c710ca1a6209fbd61fdcdcd31472b0
[INFO] checking amilajack/simplex against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Familajack%2Fsimplex" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amilajack/simplex on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amilajack/simplex
[INFO] finished tweaking git repo https://github.com/amilajack/simplex
[INFO] tweaked toml for git repo https://github.com/amilajack/simplex written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/amilajack/simplex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77927e528f93622f25600563c988738d0237c243fa1080d4ee89f2a0dcc6dd4f
[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" "77927e528f93622f25600563c988738d0237c243fa1080d4ee89f2a0dcc6dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77927e528f93622f25600563c988738d0237c243fa1080d4ee89f2a0dcc6dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77927e528f93622f25600563c988738d0237c243fa1080d4ee89f2a0dcc6dd4f", kill_on_drop: false }`
[INFO] [stdout] 77927e528f93622f25600563c988738d0237c243fa1080d4ee89f2a0dcc6dd4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 953ba0ef282d2aa6aa1c110ff39c197ebbfc79fbffe294e5974bab9e5c247659
[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" "953ba0ef282d2aa6aa1c110ff39c197ebbfc79fbffe294e5974bab9e5c247659", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking simplex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `order`
[INFO] [stdout]    --> src/lib.rs:523:5
[INFO] [stdout]     |
[INFO] [stdout] 523 |     order: OrderRel,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cst`
[INFO] [stdout]    --> src/lib.rs:524:5
[INFO] [stdout]     |
[INFO] [stdout] 524 |     cst: F,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `obj_kind`
[INFO] [stdout]    --> src/lib.rs:536:5
[INFO] [stdout]     |
[INFO] [stdout] 536 |     obj_kind: ObjectiveKind,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         write!(f, r"$$ \begin{{array}}{{ccccccccccccccc}}");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `order`
[INFO] [stdout]    --> src/lib.rs:523:5
[INFO] [stdout]     |
[INFO] [stdout] 523 |     order: OrderRel,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cst`
[INFO] [stdout]    --> src/lib.rs:524:5
[INFO] [stdout]     |
[INFO] [stdout] 524 |     cst: F,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `obj_kind`
[INFO] [stdout]    --> src/lib.rs:536:5
[INFO] [stdout]     |
[INFO] [stdout] 536 |     obj_kind: ObjectiveKind,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:474:9
[INFO] [stdout]     |
[INFO] [stdout] 474 |         write!(f, r"$$ \begin{{array}}{{ccccccccccccccc}}");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.94s
[INFO] running `Command { std: "docker" "inspect" "953ba0ef282d2aa6aa1c110ff39c197ebbfc79fbffe294e5974bab9e5c247659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "953ba0ef282d2aa6aa1c110ff39c197ebbfc79fbffe294e5974bab9e5c247659", kill_on_drop: false }`
[INFO] [stdout] 953ba0ef282d2aa6aa1c110ff39c197ebbfc79fbffe294e5974bab9e5c247659