[INFO] cloning repository https://github.com/Sam-Bowden/Project-Delta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sam-Bowden/Project-Delta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSam-Bowden%2FProject-Delta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSam-Bowden%2FProject-Delta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6dae0e793a7fee99572efe481fc4d37b18a98210
[INFO] testing Sam-Bowden/Project-Delta against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSam-Bowden%2FProject-Delta" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sam-Bowden/Project-Delta on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sam-Bowden/Project-Delta
[INFO] finished tweaking git repo https://github.com/Sam-Bowden/Project-Delta
[INFO] tweaked toml for git repo https://github.com/Sam-Bowden/Project-Delta written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] crate git repo https://github.com/Sam-Bowden/Project-Delta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minidom v0.13.0
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72184c2224ee9a25bdf674bb2fe8ccebe61d1d55510aaa75c961e0cb4f0b20f0
[INFO] running `Command { std: "docker" "start" "-a" "72184c2224ee9a25bdf674bb2fe8ccebe61d1d55510aaa75c961e0cb4f0b20f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72184c2224ee9a25bdf674bb2fe8ccebe61d1d55510aaa75c961e0cb4f0b20f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72184c2224ee9a25bdf674bb2fe8ccebe61d1d55510aaa75c961e0cb4f0b20f0", kill_on_drop: false }`
[INFO] [stdout] 72184c2224ee9a25bdf674bb2fe8ccebe61d1d55510aaa75c961e0cb4f0b20f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e587d37fcc9d69083f9b15ef2e2c258edc7bc834ecf312b7a0288d4724fd02f9
[INFO] running `Command { std: "docker" "start" "-a" "e587d37fcc9d69083f9b15ef2e2c258edc7bc834ecf312b7a0288d4724fd02f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling quick-xml v0.20.0
[INFO] [stderr]    Compiling minidom v0.13.0
[INFO] [stderr]    Compiling gamma v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/core.rs:193:21
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/core.rs:193:41
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stdout]     |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `levels`
[INFO] [stdout]    --> src/core.rs:193:55
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stdout]     |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_levels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.34s
[INFO] running `Command { std: "docker" "inspect" "e587d37fcc9d69083f9b15ef2e2c258edc7bc834ecf312b7a0288d4724fd02f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e587d37fcc9d69083f9b15ef2e2c258edc7bc834ecf312b7a0288d4724fd02f9", kill_on_drop: false }`
[INFO] [stdout] e587d37fcc9d69083f9b15ef2e2c258edc7bc834ecf312b7a0288d4724fd02f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c896cec270a1d2e9f0d8cea24a947047d038fa03a0dc61ff455931f92bc5703
[INFO] running `Command { std: "docker" "start" "-a" "1c896cec270a1d2e9f0d8cea24a947047d038fa03a0dc61ff455931f92bc5703", kill_on_drop: false }`
[INFO] [stderr]    Compiling gamma v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/core.rs:193:21
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/core.rs:193:41
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stdout]     |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `levels`
[INFO] [stdout]    --> src/core.rs:193:55
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stdout]     |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_levels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "1c896cec270a1d2e9f0d8cea24a947047d038fa03a0dc61ff455931f92bc5703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c896cec270a1d2e9f0d8cea24a947047d038fa03a0dc61ff455931f92bc5703", kill_on_drop: false }`
[INFO] [stdout] 1c896cec270a1d2e9f0d8cea24a947047d038fa03a0dc61ff455931f92bc5703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 302fdbad452f0336fc6a04149152d8bb66935dfb818ae44b28a3610112da9e18
[INFO] running `Command { std: "docker" "start" "-a" "302fdbad452f0336fc6a04149152d8bb66935dfb818ae44b28a3610112da9e18", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `root`
[INFO] [stderr]    --> src/core.rs:193:21
[INFO] [stderr]     |
[INFO] [stderr] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `level`
[INFO] [stderr]    --> src/core.rs:193:41
[INFO] [stderr]     |
[INFO] [stderr] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stderr]     |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `levels`
[INFO] [stderr]    --> src/core.rs:193:55
[INFO] [stderr]     |
[INFO] [stderr] 193 | fn remove_from_tree(root: &mut Element, level: usize, levels: &Vec<Vec<&str>>) {
[INFO] [stderr]     |                                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_levels`
[INFO] [stderr] 
[INFO] [stderr] warning: `gamma` (bin "gamma" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gamma-9aaeab8b6572ae2e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "302fdbad452f0336fc6a04149152d8bb66935dfb818ae44b28a3610112da9e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302fdbad452f0336fc6a04149152d8bb66935dfb818ae44b28a3610112da9e18", kill_on_drop: false }`
[INFO] [stdout] 302fdbad452f0336fc6a04149152d8bb66935dfb818ae44b28a3610112da9e18