[INFO] cloning repository https://github.com/gavrielrh/rust-sorting
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gavrielrh/rust-sorting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavrielrh%2Frust-sorting", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavrielrh%2Frust-sorting'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9618d0d0f9a3d4caca3aaf051d8e5a85b8a51796
[INFO] checking gavrielrh/rust-sorting against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavrielrh%2Frust-sorting" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gavrielrh/rust-sorting on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gavrielrh/rust-sorting
[INFO] finished tweaking git repo https://github.com/gavrielrh/rust-sorting
[INFO] tweaked toml for git repo https://github.com/gavrielrh/rust-sorting written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/gavrielrh/rust-sorting already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bea4f9eb54150ed42e1f9b7b6952e059f2094e6c865da20a2fd0a915297ace9
[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" "2bea4f9eb54150ed42e1f9b7b6952e059f2094e6c865da20a2fd0a915297ace9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bea4f9eb54150ed42e1f9b7b6952e059f2094e6c865da20a2fd0a915297ace9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bea4f9eb54150ed42e1f9b7b6952e059f2094e6c865da20a2fd0a915297ace9", kill_on_drop: false }`
[INFO] [stdout] 2bea4f9eb54150ed42e1f9b7b6952e059f2094e6c865da20a2fd0a915297ace9
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8518824c6183f91985c2ed77bc36792decef46aa52d5ecfaa60525d5884cff3
[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" "d8518824c6183f91985c2ed77bc36792decef46aa52d5ecfaa60525d5884cff3", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v1.0.12
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking csv-core v0.1.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.12
[INFO] [stderr]     Checking csv v1.0.0-beta.4
[INFO] [stderr]     Checking sorting v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn run() -> Result<(), Box<Error>> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn run() -> Result<(), Box<Error>> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.00s
[INFO] running `Command { std: "docker" "inspect" "d8518824c6183f91985c2ed77bc36792decef46aa52d5ecfaa60525d5884cff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8518824c6183f91985c2ed77bc36792decef46aa52d5ecfaa60525d5884cff3", kill_on_drop: false }`
[INFO] [stdout] d8518824c6183f91985c2ed77bc36792decef46aa52d5ecfaa60525d5884cff3