[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#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Familajack%2Fsimplex" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amilajack/simplex on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-68/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--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-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b57bd9e26b5838b27b4f3c9b519895723b267b9cfd624ca191b7e322056e3f08
[INFO] running `Command { std: "docker" "start" "-a" "b57bd9e26b5838b27b4f3c9b519895723b267b9cfd624ca191b7e322056e3f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b57bd9e26b5838b27b4f3c9b519895723b267b9cfd624ca191b7e322056e3f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57bd9e26b5838b27b4f3c9b519895723b267b9cfd624ca191b7e322056e3f08", kill_on_drop: false }`
[INFO] [stdout] b57bd9e26b5838b27b4f3c9b519895723b267b9cfd624ca191b7e322056e3f08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6200f8ed566d23d3c7fef1fba69f29f4b52263db74e95c15cb6098b5df118e67
[INFO] running `Command { std: "docker" "start" "-a" "6200f8ed566d23d3c7fef1fba69f29f4b52263db74e95c15cb6098b5df118e67", 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-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling getopts v0.2.18
[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 16.04s
[INFO] running `Command { std: "docker" "inspect" "6200f8ed566d23d3c7fef1fba69f29f4b52263db74e95c15cb6098b5df118e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6200f8ed566d23d3c7fef1fba69f29f4b52263db74e95c15cb6098b5df118e67", kill_on_drop: false }`
[INFO] [stdout] 6200f8ed566d23d3c7fef1fba69f29f4b52263db74e95c15cb6098b5df118e67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ed7e6a292306fdb951bd84b6e89a0b8afd87f9f41b6ebfec7d65e45f8d196a5
[INFO] running `Command { std: "docker" "start" "-a" "8ed7e6a292306fdb951bd84b6e89a0b8afd87f9f41b6ebfec7d65e45f8d196a5", kill_on_drop: false }`
[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 0.84s
[INFO] running `Command { std: "docker" "inspect" "8ed7e6a292306fdb951bd84b6e89a0b8afd87f9f41b6ebfec7d65e45f8d196a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ed7e6a292306fdb951bd84b6e89a0b8afd87f9f41b6ebfec7d65e45f8d196a5", kill_on_drop: false }`
[INFO] [stdout] 8ed7e6a292306fdb951bd84b6e89a0b8afd87f9f41b6ebfec7d65e45f8d196a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15f574c8edb9e7cc7c2e2e67ecc622a4dcaa3041db0ecf450654a499a096ed22
[INFO] running `Command { std: "docker" "start" "-a" "15f574c8edb9e7cc7c2e2e67ecc622a4dcaa3041db0ecf450654a499a096ed22", 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: `simplex` (lib) generated 4 warnings
[INFO] [stderr] warning: `simplex` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simplex-ca509151b2576430)
[INFO] [stdout] 
[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 0.01s
[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" "15f574c8edb9e7cc7c2e2e67ecc622a4dcaa3041db0ecf450654a499a096ed22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f574c8edb9e7cc7c2e2e67ecc622a4dcaa3041db0ecf450654a499a096ed22", kill_on_drop: false }`
[INFO] [stdout] 15f574c8edb9e7cc7c2e2e67ecc622a4dcaa3041db0ecf450654a499a096ed22