[INFO] cloning repository https://github.com/paomian/toy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paomian/toy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaomian%2Ftoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaomian%2Ftoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41e28caa170eff38ace436bd016b67de37cb6125
[INFO] checking paomian/toy against master#a932eb36f8adf6c8cdfc450f063943da3112d621 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaomian%2Ftoy" "/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/paomian/toy on toolchain a932eb36f8adf6c8cdfc450f063943da3112d621
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/paomian/toy
[INFO] finished tweaking git repo https://github.com/paomian/toy
[INFO] tweaked toml for git repo https://github.com/paomian/toy written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/paomian/toy 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" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0643284f808ccc393ef2009298e47367cfd78f03b6c7b8f49a3e515c15acfa3c
[INFO] running `Command { std: "docker" "start" "-a" "0643284f808ccc393ef2009298e47367cfd78f03b6c7b8f49a3e515c15acfa3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0643284f808ccc393ef2009298e47367cfd78f03b6c7b8f49a3e515c15acfa3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0643284f808ccc393ef2009298e47367cfd78f03b6c7b8f49a3e515c15acfa3c", kill_on_drop: false }`
[INFO] [stdout] 0643284f808ccc393ef2009298e47367cfd78f03b6c7b8f49a3e515c15acfa3c
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 914334381f73666a5fdaa5cd97cabc41d5d3a074319d703a725588ca29f05849
[INFO] running `Command { std: "docker" "start" "-a" "914334381f73666a5fdaa5cd97cabc41d5d3a074319d703a725588ca29f05849", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking bytes v1.8.0
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_filter v0.1.2
[INFO] [stderr]     Checking env_logger v0.11.5
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.41.1
[INFO] [stderr]     Checking toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lists v0.1.0 (/opt/rustwide/workdir/src/lists)
[INFO] [stdout] warning: field `elem` is never read
[INFO] [stdout]   --> src/lists/src/multiway_tree.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Node<K, T> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     elem: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodeName` is never used
[INFO] [stdout]   --> src/lists/src/multiway_tree.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | type NodeName = String;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreePath` is never constructed
[INFO] [stdout]   --> src/lists/src/multiway_tree.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct TreePath {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `elem` is never read
[INFO] [stdout]   --> src/lists/src/multiway_tree.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Node<K, T> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     elem: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodeName` is never used
[INFO] [stdout]   --> src/lists/src/multiway_tree.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | type NodeName = String;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreePath` is never constructed
[INFO] [stdout]   --> src/lists/src/multiway_tree.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct TreePath {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.70s
[INFO] running `Command { std: "docker" "inspect" "914334381f73666a5fdaa5cd97cabc41d5d3a074319d703a725588ca29f05849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914334381f73666a5fdaa5cd97cabc41d5d3a074319d703a725588ca29f05849", kill_on_drop: false }`
[INFO] [stdout] 914334381f73666a5fdaa5cd97cabc41d5d3a074319d703a725588ca29f05849