[INFO] fetching crate rust-graph 0.0.3...
[INFO] checking rust-graph-0.0.3 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate rust-graph 0.0.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rust-graph 0.0.3 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-graph 0.0.3
[INFO] finished tweaking crates.io crate rust-graph 0.0.3
[INFO] tweaked toml for crates.io crate rust-graph 0.0.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d245c002de494431f28024dd39db4fd0ea85ca2c3ae05aab35d65c7e2910e4e5
[INFO] running `Command { std: "docker" "start" "-a" "d245c002de494431f28024dd39db4fd0ea85ca2c3ae05aab35d65c7e2910e4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d245c002de494431f28024dd39db4fd0ea85ca2c3ae05aab35d65c7e2910e4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d245c002de494431f28024dd39db4fd0ea85ca2c3ae05aab35d65c7e2910e4e5", kill_on_drop: false }`
[INFO] [stdout] d245c002de494431f28024dd39db4fd0ea85ca2c3ae05aab35d65c7e2910e4e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5d3282e0fbe81cc981f584d86bdfc88f46a7ea23a118aa0054c89612428d19f
[INFO] running `Command { std: "docker" "start" "-a" "e5d3282e0fbe81cc981f584d86bdfc88f46a7ea23a118aa0054c89612428d19f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking rust-graph v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_all` found for mutable reference `&mut Vec<T>` in the current scope
[INFO] [stdout]   --> src/disjoint_set.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |         x_set.push_all(&*y_set);
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `push` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 34 |         x_set.push(&*y_set);
[INFO] [stdout]    |               ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_all` found for mutable reference `&mut Vec<T>` in the current scope
[INFO] [stdout]   --> src/disjoint_set.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |         x_set.push_all(&*y_set);
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `push` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 34 |         x_set.push(&*y_set);
[INFO] [stdout]    |               ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-graph` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-graph` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e5d3282e0fbe81cc981f584d86bdfc88f46a7ea23a118aa0054c89612428d19f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5d3282e0fbe81cc981f584d86bdfc88f46a7ea23a118aa0054c89612428d19f", kill_on_drop: false }`
[INFO] [stdout] e5d3282e0fbe81cc981f584d86bdfc88f46a7ea23a118aa0054c89612428d19f