[INFO] cloning repository https://github.com/noamtashma/generic-trees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noamtashma/generic-trees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoamtashma%2Fgeneric-trees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoamtashma%2Fgeneric-trees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f205c089b56d6224f4af7a393b25dfbbad55ac5
[INFO] checking noamtashma/generic-trees against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoamtashma%2Fgeneric-trees" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/noamtashma/generic-trees on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/noamtashma/generic-trees
[INFO] finished tweaking git repo https://github.com/noamtashma/generic-trees
[INFO] tweaked toml for git repo https://github.com/noamtashma/generic-trees written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 23c6cdefd00a80c452369dee555628015a8e8aea7628a0d87d90ef6afcc270d6
[INFO] running `Command { std: "docker" "start" "-a" "23c6cdefd00a80c452369dee555628015a8e8aea7628a0d87d90ef6afcc270d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23c6cdefd00a80c452369dee555628015a8e8aea7628a0d87d90ef6afcc270d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c6cdefd00a80c452369dee555628015a8e8aea7628a0d87d90ef6afcc270d6", kill_on_drop: false }`
[INFO] [stdout] 23c6cdefd00a80c452369dee555628015a8e8aea7628a0d87d90ef6afcc270d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c8355843b3d0bbc0e18057f1c5d5361f0e9284a2d1fb92d87c5446f53f504cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2c8355843b3d0bbc0e18057f1c5d5361f0e9284a2d1fb92d87c5446f53f504cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling derive_destructure v1.0.0
[INFO] [stderr]     Checking orchard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `rot_side`
[INFO] [stdout]    --> src/trees/avl.rs:404:5
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn rot_side(&mut self, b : bool) -> Option<()> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rebuild`
[INFO] [stdout]    --> src/trees/avl.rs:465:5
[INFO] [stdout]     |
[INFO] [stdout] 465 |     fn rebuild(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rot_side`
[INFO] [stdout]    --> src/trees/avl.rs:404:5
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn rot_side(&mut self, b : bool) -> Option<()> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rebuild`
[INFO] [stdout]    --> src/trees/avl.rs:465:5
[INFO] [stdout]     |
[INFO] [stdout] 465 |     fn rebuild(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.91s
[INFO] running `Command { std: "docker" "inspect" "2c8355843b3d0bbc0e18057f1c5d5361f0e9284a2d1fb92d87c5446f53f504cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8355843b3d0bbc0e18057f1c5d5361f0e9284a2d1fb92d87c5446f53f504cf", kill_on_drop: false }`
[INFO] [stdout] 2c8355843b3d0bbc0e18057f1c5d5361f0e9284a2d1fb92d87c5446f53f504cf