[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] testing amilajack/simplex against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Familajack%2Fsimplex" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amilajack/simplex on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 062adc3a6df9ff359c02a33bdc83ef7d50abd272c657dbd4f8ddd017c7e2ca63
[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" "062adc3a6df9ff359c02a33bdc83ef7d50abd272c657dbd4f8ddd017c7e2ca63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "062adc3a6df9ff359c02a33bdc83ef7d50abd272c657dbd4f8ddd017c7e2ca63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "062adc3a6df9ff359c02a33bdc83ef7d50abd272c657dbd4f8ddd017c7e2ca63", kill_on_drop: false }`
[INFO] [stdout] 062adc3a6df9ff359c02a33bdc83ef7d50abd272c657dbd4f8ddd017c7e2ca63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a81da08095bbac53f6c9d05aa687a584af888db4f2a8936c932336f43864898
[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" "2a81da08095bbac53f6c9d05aa687a584af888db4f2a8936c932336f43864898", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling 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 the macro `write` (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 10.64s
[INFO] running `Command { std: "docker" "inspect" "2a81da08095bbac53f6c9d05aa687a584af888db4f2a8936c932336f43864898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a81da08095bbac53f6c9d05aa687a584af888db4f2a8936c932336f43864898", kill_on_drop: false }`
[INFO] [stdout] 2a81da08095bbac53f6c9d05aa687a584af888db4f2a8936c932336f43864898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98b3124fbbe8a7798c2292117456fffd05c62f7b535f961643246cf6e14cfa35
[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" "98b3124fbbe8a7798c2292117456fffd05c62f7b535f961643246cf6e14cfa35", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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 the macro `write` (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 the macro `write` (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 test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "98b3124fbbe8a7798c2292117456fffd05c62f7b535f961643246cf6e14cfa35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b3124fbbe8a7798c2292117456fffd05c62f7b535f961643246cf6e14cfa35", kill_on_drop: false }`
[INFO] [stdout] 98b3124fbbe8a7798c2292117456fffd05c62f7b535f961643246cf6e14cfa35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1f68a6b52b46ea0270c095ab206f426750561f71843b5a56d281d0ef5a1f56aa
[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" "1f68a6b52b46ea0270c095ab206f426750561f71843b5a56d281d0ef5a1f56aa", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `order`
[INFO] [stderr]    --> src/lib.rs:523:5
[INFO] [stderr]     |
[INFO] [stderr] 523 |     order: OrderRel,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cst`
[INFO] [stderr]    --> src/lib.rs:524:5
[INFO] [stderr]     |
[INFO] [stderr] 524 |     cst: F,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `obj_kind`
[INFO] [stderr]    --> src/lib.rs:536:5
[INFO] [stderr]     |
[INFO] [stderr] 536 |     obj_kind: ObjectiveKind,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:474:9
[INFO] [stderr]     |
[INFO] [stderr] 474 |         write!(f, r"$$ \begin{{array}}{{ccccccccccccccc}}");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `order`
[INFO] [stderr]    --> src/lib.rs:523:5
[INFO] [stderr]     |
[INFO] [stderr] 523 |     order: OrderRel,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cst`
[INFO] [stderr]    --> src/lib.rs:524:5
[INFO] [stderr]     |
[INFO] [stderr] 524 |     cst: F,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `obj_kind`
[INFO] [stderr]    --> src/lib.rs:536:5
[INFO] [stderr]     |
[INFO] [stderr] 536 |     obj_kind: ObjectiveKind,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:474:9
[INFO] [stderr]     |
[INFO] [stderr] 474 |         write!(f, r"$$ \begin{{array}}{{ccccccccccccccc}}");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simplex-80f19e9706657cf1)
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests simplex
[INFO] [stdout] test test::test_at ... ok
[INFO] [stdout] test test::test_leaving_variable ... ok
[INFO] [stdout] test test::test_print ... ok
[INFO] [stdout] test test::testcase_is_integre ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1f68a6b52b46ea0270c095ab206f426750561f71843b5a56d281d0ef5a1f56aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f68a6b52b46ea0270c095ab206f426750561f71843b5a56d281d0ef5a1f56aa", kill_on_drop: false }`
[INFO] [stdout] 1f68a6b52b46ea0270c095ab206f426750561f71843b5a56d281d0ef5a1f56aa