[INFO] cloning repository https://github.com/colwem/bridge-trainer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colwem/bridge-trainer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolwem%2Fbridge-trainer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolwem%2Fbridge-trainer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c0b6c24e4a5173166e0480ddf552ebbaccc22a4
[INFO] checking colwem/bridge-trainer against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolwem%2Fbridge-trainer" "/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/colwem/bridge-trainer on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colwem/bridge-trainer
[INFO] finished tweaking git repo https://github.com/colwem/bridge-trainer
[INFO] tweaked toml for git repo https://github.com/colwem/bridge-trainer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/colwem/bridge-trainer 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v6.0.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd59af242b81e19366a2d8303e13fefbd010286517911930e6e50d0cc1df80e8
[INFO] running `Command { std: "docker" "start" "-a" "bd59af242b81e19366a2d8303e13fefbd010286517911930e6e50d0cc1df80e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd59af242b81e19366a2d8303e13fefbd010286517911930e6e50d0cc1df80e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd59af242b81e19366a2d8303e13fefbd010286517911930e6e50d0cc1df80e8", kill_on_drop: false }`
[INFO] [stdout] bd59af242b81e19366a2d8303e13fefbd010286517911930e6e50d0cc1df80e8
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a970499a4256e25c7d6dd7b63e85aa70ce24e817e9661a282bcffe2431e659ef
[INFO] running `Command { std: "docker" "start" "-a" "a970499a4256e25c7d6dd7b63e85aa70ce24e817e9661a282bcffe2431e659ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]     Checking bridge-trainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0382]: borrow of moved value: `combinations`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut combinations:Vec<String> = Vec::new();
[INFO] [stdout]    |         ---------------- move occurs because `combinations` has type `Vec<String>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     loop {
[INFO] [stdout]    |     ---- inside of this loop
[INFO] [stdout] 34 |         combinations.shuffle(&mut rng);
[INFO] [stdout]    |         ^^^^^^^^^^^^ value borrowed here after move
[INFO] [stdout] 35 |         for c in combinations {
[INFO] [stdout]    |                  ------------ `combinations` moved due to this implicit call to `.into_iter()`, in previous iteration of loop
[INFO] [stdout]    |
[INFO] [stdout] note: `into_iter` takes ownership of the receiver `self`, which moves `combinations`
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/iter/traits/collect.rs:311:18
[INFO] [stdout] help: consider iterating over a slice of the `Vec<String>`'s content to avoid moving into the `for` loop
[INFO] [stdout]    |
[INFO] [stdout] 35 |         for c in &combinations {
[INFO] [stdout]    |                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `combinations`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut combinations:Vec<String> = Vec::new();
[INFO] [stdout]    |         ---------------- move occurs because `combinations` has type `Vec<String>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     loop {
[INFO] [stdout]    |     ---- inside of this loop
[INFO] [stdout] 34 |         combinations.shuffle(&mut rng);
[INFO] [stdout]    |         ^^^^^^^^^^^^ value borrowed here after move
[INFO] [stdout] 35 |         for c in combinations {
[INFO] [stdout]    |                  ------------ `combinations` moved due to this implicit call to `.into_iter()`, in previous iteration of loop
[INFO] [stdout]    |
[INFO] [stdout] note: `into_iter` takes ownership of the receiver `self`, which moves `combinations`
[INFO] [stdout]   --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/iter/traits/collect.rs:311:18
[INFO] [stdout] help: consider iterating over a slice of the `Vec<String>`'s content to avoid moving into the `for` loop
[INFO] [stdout]    |
[INFO] [stdout] 35 |         for c in &combinations {
[INFO] [stdout]    |                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bridge-trainer` (bin "bridge-trainer") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `bridge-trainer` (bin "bridge-trainer" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a970499a4256e25c7d6dd7b63e85aa70ce24e817e9661a282bcffe2431e659ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a970499a4256e25c7d6dd7b63e85aa70ce24e817e9661a282bcffe2431e659ef", kill_on_drop: false }`
[INFO] [stdout] a970499a4256e25c7d6dd7b63e85aa70ce24e817e9661a282bcffe2431e659ef