[INFO] fetching crate incremental-topo 0.2.1...
[INFO] checking incremental-topo-0.2.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate incremental-topo 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate incremental-topo 0.2.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-6-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_codegen v0.9.0
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[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2954f8a8248f0434b2863c4601c0e83915842fb6e243e410739ab54910564f3d
[INFO] running `Command { std: "docker" "start" "-a" "2954f8a8248f0434b2863c4601c0e83915842fb6e243e410739ab54910564f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2954f8a8248f0434b2863c4601c0e83915842fb6e243e410739ab54910564f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2954f8a8248f0434b2863c4601c0e83915842fb6e243e410739ab54910564f3d", kill_on_drop: false }`
[INFO] [stdout] 2954f8a8248f0434b2863c4601c0e83915842fb6e243e410739ab54910564f3d
[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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 460ec6985291bdf3fc9f5e0f066548a35868cf8706cd4fdd216259a7b62693d3
[INFO] running `Command { std: "docker" "start" "-a" "460ec6985291bdf3fc9f5e0f066548a35868cf8706cd4fdd216259a7b62693d3", 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
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[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
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[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling phf_shared v0.9.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
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[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.27
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[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
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[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling phf_generator v0.9.1
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking ordered-float v3.0.0
[INFO] [stderr]    Compiling phf_codegen v0.9.0
[INFO] [stderr]     Checking incremental-topo v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling x86 v0.47.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking perfcnt v0.8.0
[INFO] [stderr]     Checking criterion-perf-events v0.2.0
[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` profile [unoptimized + debuginfo] target(s) in 25.09s
[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" "460ec6985291bdf3fc9f5e0f066548a35868cf8706cd4fdd216259a7b62693d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460ec6985291bdf3fc9f5e0f066548a35868cf8706cd4fdd216259a7b62693d3", kill_on_drop: false }`
[INFO] [stdout] 460ec6985291bdf3fc9f5e0f066548a35868cf8706cd4fdd216259a7b62693d3