[INFO] fetching crate incremental-topo 0.2.1...
[INFO] checking incremental-topo-0.2.1 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate incremental-topo 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate incremental-topo 0.2.1 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate incremental-topo 0.2.1
[INFO] finished tweaking crates.io crate incremental-topo 0.2.1
[INFO] tweaked toml for crates.io crate incremental-topo 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate incremental-topo 0.2.1 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.9
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[INFO] [stderr]   Downloaded generational-arena v0.2.8
[INFO] [stderr]   Downloaded semver v1.0.12
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[INFO] [stderr]   Downloaded gimli v0.26.1
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[INFO] [stderr]   Downloaded rayon v1.5.3
[INFO] [stderr]   Downloaded plotters v0.3.2
[INFO] [stderr]   Downloaded criterion-perf-events v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d502422ccd9c8ee14473c5986310510c337eb1218b05f842fe61070e32df0722
[INFO] running `Command { std: "docker" "start" "-a" "d502422ccd9c8ee14473c5986310510c337eb1218b05f842fe61070e32df0722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d502422ccd9c8ee14473c5986310510c337eb1218b05f842fe61070e32df0722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d502422ccd9c8ee14473c5986310510c337eb1218b05f842fe61070e32df0722", kill_on_drop: false }`
[INFO] [stdout] d502422ccd9c8ee14473c5986310510c337eb1218b05f842fe61070e32df0722
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] baa74e7fc2ac13c8ed1302d5d0568dacd30639fc12a8e2f0e262fe31204fc0c0
[INFO] running `Command { std: "docker" "start" "-a" "baa74e7fc2ac13c8ed1302d5d0568dacd30639fc12a8e2f0e262fe31204fc0c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling semver v1.0.12
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling phf_shared v0.9.0
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[INFO] [stderr]     Checking env_logger v0.7.1
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[INFO] [stderr]     Checking ordered-float v3.0.0
[INFO] [stderr]     Checking incremental-topo v0.2.1 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> benches/basic_operations.rs:159:67
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 dag.descendants_unsorted(i).unwrap().for_each(|v| drop(v));
[INFO] [stdout]     |                                                                   ^^^^^-^
[INFO] [stdout]     |                                                                        |
[INFO] [stdout]     |                                                                        argument has type `(usize, Node)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> benches/basic_operations.rs:171:58
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 dag.descendants(i).unwrap().for_each(|v| drop(v));
[INFO] [stdout]     |                                                          ^^^^^-^
[INFO] [stdout]     |                                                               |
[INFO] [stdout]     |                                                               argument has type `Node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "baa74e7fc2ac13c8ed1302d5d0568dacd30639fc12a8e2f0e262fe31204fc0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baa74e7fc2ac13c8ed1302d5d0568dacd30639fc12a8e2f0e262fe31204fc0c0", kill_on_drop: false }`
[INFO] [stdout] baa74e7fc2ac13c8ed1302d5d0568dacd30639fc12a8e2f0e262fe31204fc0c0
