[INFO] cloning repository https://github.com/lukaspustina/rust-patterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukaspustina/rust-patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukaspustina%2Frust-patterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukaspustina%2Frust-patterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5ec6d767df177095e451228c65be77d02ca9841
[INFO] checking lukaspustina/rust-patterns against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukaspustina%2Frust-patterns" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lukaspustina/rust-patterns on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lukaspustina/rust-patterns
[INFO] finished tweaking git repo https://github.com/lukaspustina/rust-patterns
[INFO] tweaked toml for git repo https://github.com/lukaspustina/rust-patterns written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/lukaspustina/rust-patterns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9478ff6a2b600158a09d8c4e27d4570dc30ce176fb68009cc4f8f448d0a3c36d
[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" "9478ff6a2b600158a09d8c4e27d4570dc30ce176fb68009cc4f8f448d0a3c36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9478ff6a2b600158a09d8c4e27d4570dc30ce176fb68009cc4f8f448d0a3c36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9478ff6a2b600158a09d8c4e27d4570dc30ce176fb68009cc4f8f448d0a3c36d", kill_on_drop: false }`
[INFO] [stdout] 9478ff6a2b600158a09d8c4e27d4570dc30ce176fb68009cc4f8f448d0a3c36d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c75a69e8376aec82ebe63c3128558b4dd0a8d6e3a39f258e9457d6720c3aae74
[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" "c75a69e8376aec82ebe63c3128558b4dd0a8d6e3a39f258e9457d6720c3aae74", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:51:25
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let s1_box: Box<Strategy> = factory(1);
[INFO] [stdout]    |                         ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[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:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let s2_box: Box<Strategy> = factory(2);
[INFO] [stdout]    |                         ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let s3: Box<Strategy> = factory(2);
[INFO] [stdout]    |                     ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:51:25
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let s1_box: Box<Strategy> = factory(1);
[INFO] [stdout]    |                         ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[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:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let s2_box: Box<Strategy> = factory(2);
[INFO] [stdout]    |                         ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let s3: Box<Strategy> = factory(2);
[INFO] [stdout]    |                     ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "c75a69e8376aec82ebe63c3128558b4dd0a8d6e3a39f258e9457d6720c3aae74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75a69e8376aec82ebe63c3128558b4dd0a8d6e3a39f258e9457d6720c3aae74", kill_on_drop: false }`
[INFO] [stdout] c75a69e8376aec82ebe63c3128558b4dd0a8d6e3a39f258e9457d6720c3aae74