[INFO] cloning repository https://github.com/richardjs/lineage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/richardjs/lineage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardjs%2Flineage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardjs%2Flineage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36a7bfff85f622ebe4844b4fa27a1790e09092b0
[INFO] checking richardjs/lineage against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardjs%2Flineage" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richardjs/lineage 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/richardjs/lineage
[INFO] finished tweaking git repo https://github.com/richardjs/lineage
[INFO] tweaked toml for git repo https://github.com/richardjs/lineage written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/richardjs/lineage 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 }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.51
[INFO] [stderr]   Downloaded bs58 v0.2.2
[INFO] [stderr]   Downloaded chess v3.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9cdf3642e5d6554febc5fc49c4c91aa9e58f19ae76bf11f9844dfb0c89eb21ff
[INFO] running `Command { std: "docker" "start" "-a" "9cdf3642e5d6554febc5fc49c4c91aa9e58f19ae76bf11f9844dfb0c89eb21ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cdf3642e5d6554febc5fc49c4c91aa9e58f19ae76bf11f9844dfb0c89eb21ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cdf3642e5d6554febc5fc49c4c91aa9e58f19ae76bf11f9844dfb0c89eb21ff", kill_on_drop: false }`
[INFO] [stdout] 9cdf3642e5d6554febc5fc49c4c91aa9e58f19ae76bf11f9844dfb0c89eb21ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 819ec76575864bc497cd526a898366b1c894b0a689bf10c17fca08f2853e1d66
[INFO] running `Command { std: "docker" "start" "-a" "819ec76575864bc497cd526a898366b1c894b0a689bf10c17fca08f2853e1d66", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking bs58 v0.2.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling chess v3.0.1
[INFO] [stderr]     Checking lineage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `crypto` is imported redundantly
[INFO] [stdout]    --> src/block.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |     use super::*;
[INFO] [stdout]     |         -------- the item `crypto` is already imported here
[INFO] [stdout] 337 |     use crate::crypto;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `KeyPair` is imported redundantly
[INFO] [stdout]    --> src/block.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |     use super::*;
[INFO] [stdout]     |         -------- the item `KeyPair` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 339 |     use ring::signature::KeyPair;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.07s
[INFO] running `Command { std: "docker" "inspect" "819ec76575864bc497cd526a898366b1c894b0a689bf10c17fca08f2853e1d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819ec76575864bc497cd526a898366b1c894b0a689bf10c17fca08f2853e1d66", kill_on_drop: false }`
[INFO] [stdout] 819ec76575864bc497cd526a898366b1c894b0a689bf10c17fca08f2853e1d66
[INFO] checking richardjs/lineage against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardjs%2Flineage" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richardjs/lineage 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/richardjs/lineage
[INFO] finished tweaking git repo https://github.com/richardjs/lineage
[INFO] tweaked toml for git repo https://github.com/richardjs/lineage written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/richardjs/lineage 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 699c1c044dcb9a4e5e30f60d9fb9c6772605d229156712bac18c2c53891d0dd1
[INFO] running `Command { std: "docker" "start" "-a" "699c1c044dcb9a4e5e30f60d9fb9c6772605d229156712bac18c2c53891d0dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "699c1c044dcb9a4e5e30f60d9fb9c6772605d229156712bac18c2c53891d0dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699c1c044dcb9a4e5e30f60d9fb9c6772605d229156712bac18c2c53891d0dd1", kill_on_drop: false }`
[INFO] [stdout] 699c1c044dcb9a4e5e30f60d9fb9c6772605d229156712bac18c2c53891d0dd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] fa96281ff8109ae329ead9486a9f75d73845c897cb52ac2813bd15a51b96d768
[INFO] running `Command { std: "docker" "start" "-a" "fa96281ff8109ae329ead9486a9f75d73845c897cb52ac2813bd15a51b96d768", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking bs58 v0.2.2
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling chess v3.0.1
[INFO] [stderr]     Checking lineage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `crypto` is imported redundantly
[INFO] [stdout]    --> src/block.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |     use super::*;
[INFO] [stdout]     |         -------- the item `crypto` is already imported here
[INFO] [stdout] 337 |     use crate::crypto;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `KeyPair` is imported redundantly
[INFO] [stdout]    --> src/block.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |     use super::*;
[INFO] [stdout]     |         -------- the item `KeyPair` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 339 |     use ring::signature::KeyPair;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.98s
[INFO] running `Command { std: "docker" "inspect" "fa96281ff8109ae329ead9486a9f75d73845c897cb52ac2813bd15a51b96d768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa96281ff8109ae329ead9486a9f75d73845c897cb52ac2813bd15a51b96d768", kill_on_drop: false }`
[INFO] [stdout] fa96281ff8109ae329ead9486a9f75d73845c897cb52ac2813bd15a51b96d768