[INFO] fetching crate aigraph1 0.1.0...
[INFO] checking aigraph1-0.1.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate aigraph1 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate aigraph1 0.1.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aigraph1 0.1.0
[INFO] finished tweaking crates.io crate aigraph1 0.1.0
[INFO] tweaked toml for crates.io crate aigraph1 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate aigraph1 0.1.0 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded text_io v0.1.12
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1acad40da59fb88d7eb9e6642d1f92279390c24a04a2e99e0f01d01edf127829
[INFO] running `Command { std: "docker" "start" "-a" "1acad40da59fb88d7eb9e6642d1f92279390c24a04a2e99e0f01d01edf127829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1acad40da59fb88d7eb9e6642d1f92279390c24a04a2e99e0f01d01edf127829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1acad40da59fb88d7eb9e6642d1f92279390c24a04a2e99e0f01d01edf127829", kill_on_drop: false }`
[INFO] [stdout] 1acad40da59fb88d7eb9e6642d1f92279390c24a04a2e99e0f01d01edf127829
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eae4eec6c9504fb25d5b2975468d97e71679066f3f75acafda4baa38f6d2bf81
[INFO] running `Command { std: "docker" "start" "-a" "eae4eec6c9504fb25d5b2975468d97e71679066f3f75acafda4baa38f6d2bf81", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking petgraph v0.6.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking clap v3.2.23
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking rayon v1.6.1
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking aigraph1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:388:17
[INFO] [stdout]     |
[INFO] [stdout] 388 |             let mut dijkstra_walker = Dijkstra::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:394:17
[INFO] [stdout]     |
[INFO] [stdout] 394 |             let mut breadth_walker = BreadthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:400:17
[INFO] [stdout]     |
[INFO] [stdout] 400 |             let mut depth_walker = DepthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:407:17
[INFO] [stdout]     |
[INFO] [stdout] 407 |             let mut dijkstra_walker_b = Dijkstra::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:413:17
[INFO] [stdout]     |
[INFO] [stdout] 413 |             let mut breadth_walker_b = BreadthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |             let mut depth_walker_b = DepthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ciborium v0.2.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stdout] error[E0432]: unresolved import `iai`
[INFO] [stdout]  --> benches/iai_benchmarks.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use iai::{black_box, Iai};
[INFO] [stdout]   |     ^^^ use of undeclared crate or module `iai`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `iai`
[INFO] [stdout]    --> benches/iai_benchmarks.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | iai::main!(
[INFO] [stdout]     | ^^^ use of undeclared crate or module `iai`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `iai_benchmarks`
[INFO] [stdout]    --> benches/iai_benchmarks.rs:156:3
[INFO] [stdout]     |
[INFO] [stdout] 156 | );
[INFO] [stdout]     |   ^ consider adding a `main` function to `benches/iai_benchmarks.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aigraph1` (bench "iai_benchmarks") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:388:17
[INFO] [stdout]     |
[INFO] [stdout] 388 |             let mut dijkstra_walker = Dijkstra::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:394:17
[INFO] [stdout]     |
[INFO] [stdout] 394 |             let mut breadth_walker = BreadthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:400:17
[INFO] [stdout]     |
[INFO] [stdout] 400 |             let mut depth_walker = DepthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:407:17
[INFO] [stdout]     |
[INFO] [stdout] 407 |             let mut dijkstra_walker_b = Dijkstra::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:413:17
[INFO] [stdout]     |
[INFO] [stdout] 413 |             let mut breadth_walker_b = BreadthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:419:17
[INFO] [stdout]     |
[INFO] [stdout] 419 |             let mut depth_walker_b = DepthFirst::new(
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eae4eec6c9504fb25d5b2975468d97e71679066f3f75acafda4baa38f6d2bf81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae4eec6c9504fb25d5b2975468d97e71679066f3f75acafda4baa38f6d2bf81", kill_on_drop: false }`
[INFO] [stdout] eae4eec6c9504fb25d5b2975468d97e71679066f3f75acafda4baa38f6d2bf81
