[INFO] cloning repository https://github.com/KrakenOverlord/dynamic_programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KrakenOverlord/dynamic_programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrakenOverlord%2Fdynamic_programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrakenOverlord%2Fdynamic_programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f4c640da47c2fbea62588913cdeda8f1e14fd3f
[INFO] checking KrakenOverlord/dynamic_programming against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrakenOverlord%2Fdynamic_programming" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KrakenOverlord/dynamic_programming on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KrakenOverlord/dynamic_programming
[INFO] finished tweaking git repo https://github.com/KrakenOverlord/dynamic_programming
[INFO] tweaked toml for git repo https://github.com/KrakenOverlord/dynamic_programming written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KrakenOverlord/dynamic_programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8473024d7349e1e62bdea3877232edeefa3cb16a9e1662168d6c1253ca31849
[INFO] running `Command { std: "docker" "start" "-a" "e8473024d7349e1e62bdea3877232edeefa3cb16a9e1662168d6c1253ca31849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8473024d7349e1e62bdea3877232edeefa3cb16a9e1662168d6c1253ca31849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8473024d7349e1e62bdea3877232edeefa3cb16a9e1662168d6c1253ca31849", kill_on_drop: false }`
[INFO] [stdout] e8473024d7349e1e62bdea3877232edeefa3cb16a9e1662168d6c1253ca31849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a531713237420d9f6d7291a6a152988d9291c5c59a9e6ae61cb035d4b2c6b15
[INFO] running `Command { std: "docker" "start" "-a" "9a531713237420d9f6d7291a6a152988d9291c5c59a9e6ae61cb035d4b2c6b15", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
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[INFO] [stderr]     Checking miniz_oxide v0.5.1
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[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking speedy2d v1.7.0
[INFO] [stderr]     Checking universe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `IterationInPlace` is never constructed
[INFO] [stdout]  --> src/environment.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Policy {
[INFO] [stdout]   |          ------ variant in this enum
[INFO] [stdout] 5 |     Iteration,
[INFO] [stdout] 6 |     IterationInPlace,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `IterationInPlace` is never constructed
[INFO] [stdout]  --> src/environment.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Policy {
[INFO] [stdout]   |          ------ variant in this enum
[INFO] [stdout] 5 |     Iteration,
[INFO] [stdout] 6 |     IterationInPlace,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "9a531713237420d9f6d7291a6a152988d9291c5c59a9e6ae61cb035d4b2c6b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a531713237420d9f6d7291a6a152988d9291c5c59a9e6ae61cb035d4b2c6b15", kill_on_drop: false }`
[INFO] [stdout] 9a531713237420d9f6d7291a6a152988d9291c5c59a9e6ae61cb035d4b2c6b15
[INFO] checking KrakenOverlord/dynamic_programming against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrakenOverlord%2Fdynamic_programming" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KrakenOverlord/dynamic_programming on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KrakenOverlord/dynamic_programming
[INFO] finished tweaking git repo https://github.com/KrakenOverlord/dynamic_programming
[INFO] tweaked toml for git repo https://github.com/KrakenOverlord/dynamic_programming written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KrakenOverlord/dynamic_programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9ad6318c34808bb3c55af247824d5b24f30b8cf25541a124e5c075f303d9dc0
[INFO] running `Command { std: "docker" "start" "-a" "a9ad6318c34808bb3c55af247824d5b24f30b8cf25541a124e5c075f303d9dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9ad6318c34808bb3c55af247824d5b24f30b8cf25541a124e5c075f303d9dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9ad6318c34808bb3c55af247824d5b24f30b8cf25541a124e5c075f303d9dc0", kill_on_drop: false }`
[INFO] [stdout] a9ad6318c34808bb3c55af247824d5b24f30b8cf25541a124e5c075f303d9dc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d429e802c59e56b901703678242fb9ab6ea9cdcd156b7f8d0e31e58edd25c1a5
[INFO] running `Command { std: "docker" "start" "-a" "d429e802c59e56b901703678242fb9ab6ea9cdcd156b7f8d0e31e58edd25c1a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.5
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[INFO] [stdout] warning: variant `IterationInPlace` is never constructed
[INFO] [stdout]  --> src/environment.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Policy {
[INFO] [stdout]   |          ------ variant in this enum
[INFO] [stdout] 5 |     Iteration,
[INFO] [stdout] 6 |     IterationInPlace,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `IterationInPlace` is never constructed
[INFO] [stdout]  --> src/environment.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Policy {
[INFO] [stdout]   |          ------ variant in this enum
[INFO] [stdout] 5 |     Iteration,
[INFO] [stdout] 6 |     IterationInPlace,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.89s
[INFO] running `Command { std: "docker" "inspect" "d429e802c59e56b901703678242fb9ab6ea9cdcd156b7f8d0e31e58edd25c1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d429e802c59e56b901703678242fb9ab6ea9cdcd156b7f8d0e31e58edd25c1a5", kill_on_drop: false }`
[INFO] [stdout] d429e802c59e56b901703678242fb9ab6ea9cdcd156b7f8d0e31e58edd25c1a5