[INFO] cloning repository https://github.com/Ks5810/bored
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ks5810/bored" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKs5810%2Fbored", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKs5810%2Fbored'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b21d14daac112e2a98ee17e2fa6b4d0679b242b
[INFO] checking Ks5810/bored against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKs5810%2Fbored" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/Ks5810/bored on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ks5810/bored
[INFO] finished tweaking git repo https://github.com/Ks5810/bored
[INFO] tweaked toml for git repo https://github.com/Ks5810/bored written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate git repo https://github.com/Ks5810/bored already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indexmap v0.4.1
[INFO] [stderr]   Downloaded priority-queue v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dc82ac014af75ba38b3fd7beb5b74955eeeeea001cbcfbf9269b8a0e7d9b080
[INFO] running `Command { std: "docker" "start" "-a" "3dc82ac014af75ba38b3fd7beb5b74955eeeeea001cbcfbf9269b8a0e7d9b080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dc82ac014af75ba38b3fd7beb5b74955eeeeea001cbcfbf9269b8a0e7d9b080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dc82ac014af75ba38b3fd7beb5b74955eeeeea001cbcfbf9269b8a0e7d9b080", kill_on_drop: false }`
[INFO] [stdout] 3dc82ac014af75ba38b3fd7beb5b74955eeeeea001cbcfbf9269b8a0e7d9b080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26730611d920b801b5d230da61befa6f90f8b35d9b5e5e80b2d169ca269d5af2
[INFO] running `Command { std: "docker" "start" "-a" "26730611d920b801b5d230da61befa6f90f8b35d9b5e5e80b2d169ca269d5af2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]     Checking graph_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]   --> src/disjoint_set.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     size: usize
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]   --> src/disjoint_set.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     size: usize
[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 [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "26730611d920b801b5d230da61befa6f90f8b35d9b5e5e80b2d169ca269d5af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26730611d920b801b5d230da61befa6f90f8b35d9b5e5e80b2d169ca269d5af2", kill_on_drop: false }`
[INFO] [stdout] 26730611d920b801b5d230da61befa6f90f8b35d9b5e5e80b2d169ca269d5af2