[INFO] cloning repository https://github.com/FlyingCanoe/number
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FlyingCanoe/number" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCanoe%2Fnumber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCanoe%2Fnumber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d59b6e8c63c7459d8f0ee8df08bacf116ca38a0e
[INFO] testing FlyingCanoe/number against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCanoe%2Fnumber" "/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/FlyingCanoe/number on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FlyingCanoe/number
[INFO] finished tweaking git repo https://github.com/FlyingCanoe/number
[INFO] tweaked toml for git repo https://github.com/FlyingCanoe/number written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/FlyingCanoe/number already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 7b753764f774036e363c786adc59f4426119d92d5b4fa045c0e7bb56809e2e23
[INFO] running `Command { std: "docker" "start" "-a" "7b753764f774036e363c786adc59f4426119d92d5b4fa045c0e7bb56809e2e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b753764f774036e363c786adc59f4426119d92d5b4fa045c0e7bb56809e2e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b753764f774036e363c786adc59f4426119d92d5b4fa045c0e7bb56809e2e23", kill_on_drop: false }`
[INFO] [stdout] 7b753764f774036e363c786adc59f4426119d92d5b4fa045c0e7bb56809e2e23
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7a77920fb98bae9955f34b0fa77b81b8bf8244af70a551d11ce344794f9a3aa
[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" "e7a77920fb98bae9955f34b0fa77b81b8bf8244af70a551d11ce344794f9a3aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `element_algebrique`
[INFO] [stdout]   --> src/eqution/simplification.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         for element_algebrique in self.list_d_element {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element_algebrique`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `self.list_d_element` which is behind a mutable reference
[INFO] [stdout]   --> src/eqution/simplification.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |         for element_algebrique in self.list_d_element {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^ move occurs because `self.list_d_element` has type `Vec<eqution::ElementAlgebrique>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider iterating over a slice of the `Vec<eqution::ElementAlgebrique>`'s content
[INFO] [stdout]    |
[INFO] [stdout] 28 |         for element_algebrique in &self.list_d_element {
[INFO] [stdout]    |                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0507`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `number` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e7a77920fb98bae9955f34b0fa77b81b8bf8244af70a551d11ce344794f9a3aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a77920fb98bae9955f34b0fa77b81b8bf8244af70a551d11ce344794f9a3aa", kill_on_drop: false }`
[INFO] [stdout] e7a77920fb98bae9955f34b0fa77b81b8bf8244af70a551d11ce344794f9a3aa