[INFO] updating cached repository https://github.com/FlyingCanoe/number
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d59b6e8c63c7459d8f0ee8df08bacf116ca38a0e
[INFO] testing FlyingCanoe/number against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCanoe%2Fnumber" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  28% (80/285)   
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Checking out files: 100% (285/285), done.
[INFO] validating manifest of git repo https://github.com/FlyingCanoe/number on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/source/Cargo.toml
[INFO] crate git repo https://github.com/FlyingCanoe/number already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 1667730f73089025710b6f65e5f35c359f41647dd37290a0b2b9fbaa04de0ac5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "1667730f73089025710b6f65e5f35c359f41647dd37290a0b2b9fbaa04de0ac5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `element_algebrique`
[INFO] [stderr]   --> src/eqution/simplification.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for element_algebrique in self.list_d_element {
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element_algebrique`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0507]: cannot move out of `self.list_d_element` which is behind a mutable reference
[INFO] [stderr]   --> src/eqution/simplification.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for element_algebrique in self.list_d_element {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   move occurs because `self.list_d_element` has type `std::vec::Vec<eqution::ElementAlgebrique>`, which does not implement the `Copy` trait
[INFO] [stderr]    |                                   help: consider iterating over a slice of the `Vec<_>`'s content: `&self.list_d_element`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0507`.
[INFO] [stderr] error: could not compile `number`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1667730f73089025710b6f65e5f35c359f41647dd37290a0b2b9fbaa04de0ac5"`
[INFO] running `"docker" "rm" "-f" "1667730f73089025710b6f65e5f35c359f41647dd37290a0b2b9fbaa04de0ac5"`
[INFO] [stdout] 1667730f73089025710b6f65e5f35c359f41647dd37290a0b2b9fbaa04de0ac5