[INFO] cloning repository https://github.com/MarvelousAnything/treegen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarvelousAnything/treegen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarvelousAnything%2Ftreegen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarvelousAnything%2Ftreegen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f93b62c04431cd9e1d386eb66e6a6ec306953520
[INFO] checking MarvelousAnything/treegen against master#5b270e1198e911247244b035a6f06ce3af0a4420 for pr-126571-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarvelousAnything%2Ftreegen" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarvelousAnything/treegen on toolchain 5b270e1198e911247244b035a6f06ce3af0a4420
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarvelousAnything/treegen
[INFO] finished tweaking git repo https://github.com/MarvelousAnything/treegen
[INFO] tweaked toml for git repo https://github.com/MarvelousAnything/treegen written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MarvelousAnything/treegen 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" "+5b270e1198e911247244b035a6f06ce3af0a4420" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f93a2691bc3753382020d433ea6b086365fee6078ab1861eeb29a4396d07a9ec
[INFO] running `Command { std: "docker" "start" "-a" "f93a2691bc3753382020d433ea6b086365fee6078ab1861eeb29a4396d07a9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f93a2691bc3753382020d433ea6b086365fee6078ab1861eeb29a4396d07a9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f93a2691bc3753382020d433ea6b086365fee6078ab1861eeb29a4396d07a9ec", kill_on_drop: false }`
[INFO] [stdout] f93a2691bc3753382020d433ea6b086365fee6078ab1861eeb29a4396d07a9ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd6f69552408f281f5c96d229aab7270b32ad6cf6570b26b4d7185a4708fad73
[INFO] running `Command { std: "docker" "start" "-a" "fd6f69552408f281f5c96d229aab7270b32ad6cf6570b26b4d7185a4708fad73", kill_on_drop: false }`
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[INFO] [stderr]     Checking druid v0.8.3
[INFO] [stderr]     Checking treegen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/generator/branch_layer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return tree;
[INFO] [stdout]    |         ----------- any code following this expression is unreachable
[INFO] [stdout] 52 |         let tip_nodes = tree.get_tip_nodes();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/generator/branch_layer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return tree;
[INFO] [stdout]    |         ----------- any code following this expression is unreachable
[INFO] [stdout] 52 |         let tip_nodes = tree.get_tip_nodes();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Checkbox`
[INFO] [stdout]  --> src/bin/druid_gui.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     widget::{Button, Checkbox, Flex, Split},
[INFO] [stdout]   |                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Checkbox`
[INFO] [stdout]  --> src/bin/druid_gui.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     widget::{Button, Checkbox, Flex, Split},
[INFO] [stdout]   |                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 2m 01s
[INFO] running `Command { std: "docker" "inspect" "fd6f69552408f281f5c96d229aab7270b32ad6cf6570b26b4d7185a4708fad73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd6f69552408f281f5c96d229aab7270b32ad6cf6570b26b4d7185a4708fad73", kill_on_drop: false }`
[INFO] [stdout] fd6f69552408f281f5c96d229aab7270b32ad6cf6570b26b4d7185a4708fad73
[INFO] checking MarvelousAnything/treegen against try#0ecd73ac69e42f0c7915911f31169e93143ae55d for pr-126571-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarvelousAnything%2Ftreegen" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarvelousAnything/treegen on toolchain 0ecd73ac69e42f0c7915911f31169e93143ae55d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarvelousAnything/treegen
[INFO] finished tweaking git repo https://github.com/MarvelousAnything/treegen
[INFO] tweaked toml for git repo https://github.com/MarvelousAnything/treegen written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MarvelousAnything/treegen 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" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86786f31e50b8faa55202ed4a326f52511a067bfab4fea2337d9a3a67a882a08
[INFO] running `Command { std: "docker" "start" "-a" "86786f31e50b8faa55202ed4a326f52511a067bfab4fea2337d9a3a67a882a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86786f31e50b8faa55202ed4a326f52511a067bfab4fea2337d9a3a67a882a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86786f31e50b8faa55202ed4a326f52511a067bfab4fea2337d9a3a67a882a08", kill_on_drop: false }`
[INFO] [stdout] 86786f31e50b8faa55202ed4a326f52511a067bfab4fea2337d9a3a67a882a08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c78abd6cf8e65cfd9e241bb8e666eb9f0a7680fcd6abc9a9ae4edae190296a7
[INFO] running `Command { std: "docker" "start" "-a" "8c78abd6cf8e65cfd9e241bb8e666eb9f0a7680fcd6abc9a9ae4edae190296a7", kill_on_drop: false }`
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[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/generator/branch_layer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return tree;
[INFO] [stdout]    |         ----------- any code following this expression is unreachable
[INFO] [stdout] 52 |         let tip_nodes = tree.get_tip_nodes();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/generator/branch_layer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         return tree;
[INFO] [stdout]    |         ----------- any code following this expression is unreachable
[INFO] [stdout] 52 |         let tip_nodes = tree.get_tip_nodes();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/generator/branch_layer.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn generate(mut tree: Tree, params: &BranchParams) -> Tree {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Checkbox`
[INFO] [stdout]  --> src/bin/druid_gui.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     widget::{Button, Checkbox, Flex, Split},
[INFO] [stdout]   |                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Checkbox`
[INFO] [stdout]  --> src/bin/druid_gui.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     widget::{Button, Checkbox, Flex, Split},
[INFO] [stdout]   |                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 1m 42s
[INFO] running `Command { std: "docker" "inspect" "8c78abd6cf8e65cfd9e241bb8e666eb9f0a7680fcd6abc9a9ae4edae190296a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c78abd6cf8e65cfd9e241bb8e666eb9f0a7680fcd6abc9a9ae4edae190296a7", kill_on_drop: false }`
[INFO] [stdout] 8c78abd6cf8e65cfd9e241bb8e666eb9f0a7680fcd6abc9a9ae4edae190296a7