[INFO] cloning repository https://github.com/taku-y/learn-petgraph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taku-y/learn-petgraph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-petgraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-petgraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8463a153eb5cce5c5868823e6b984245f99e44b3
[INFO] testing taku-y/learn-petgraph against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaku-y%2Flearn-petgraph" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taku-y/learn-petgraph on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taku-y/learn-petgraph
[INFO] finished tweaking git repo https://github.com/taku-y/learn-petgraph
[INFO] tweaked toml for git repo https://github.com/taku-y/learn-petgraph written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/taku-y/learn-petgraph already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb84d7a5d1e905280c155bc8b1b3e22d8ec64e8999ea5eebbef5dbe0c19cbb09
[INFO] running `Command { std: "docker" "start" "-a" "eb84d7a5d1e905280c155bc8b1b3e22d8ec64e8999ea5eebbef5dbe0c19cbb09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb84d7a5d1e905280c155bc8b1b3e22d8ec64e8999ea5eebbef5dbe0c19cbb09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb84d7a5d1e905280c155bc8b1b3e22d8ec64e8999ea5eebbef5dbe0c19cbb09", kill_on_drop: false }`
[INFO] [stdout] eb84d7a5d1e905280c155bc8b1b3e22d8ec64e8999ea5eebbef5dbe0c19cbb09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73f4a66c32e1bc0532c00e7181b0793c8aab4a6ea00161eb8cf0a54946f9b435
[INFO] running `Command { std: "docker" "start" "-a" "73f4a66c32e1bc0532c00e7181b0793c8aab4a6ea00161eb8cf0a54946f9b435", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling learn-petgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "73f4a66c32e1bc0532c00e7181b0793c8aab4a6ea00161eb8cf0a54946f9b435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f4a66c32e1bc0532c00e7181b0793c8aab4a6ea00161eb8cf0a54946f9b435", kill_on_drop: false }`
[INFO] [stdout] 73f4a66c32e1bc0532c00e7181b0793c8aab4a6ea00161eb8cf0a54946f9b435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad859aa2d437a4c3d2a61476b88d328b7915cd3af4d34273ddc6497f07b03ccb
[INFO] running `Command { std: "docker" "start" "-a" "ad859aa2d437a4c3d2a61476b88d328b7915cd3af4d34273ddc6497f07b03ccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-petgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> examples/test2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ix`
[INFO] [stdout]   --> examples/test3.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ix: u32
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "ad859aa2d437a4c3d2a61476b88d328b7915cd3af4d34273ddc6497f07b03ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad859aa2d437a4c3d2a61476b88d328b7915cd3af4d34273ddc6497f07b03ccb", kill_on_drop: false }`
[INFO] [stdout] ad859aa2d437a4c3d2a61476b88d328b7915cd3af4d34273ddc6497f07b03ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bfa4d3b41d3036603d9bfebe6d62bc6ae8112b50c4b97e1831ffab2edb4a1a38
[INFO] running `Command { std: "docker" "start" "-a" "bfa4d3b41d3036603d9bfebe6d62bc6ae8112b50c4b97e1831ffab2edb4a1a38", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `ix`
[INFO] [stderr]   --> examples/test3.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ix: u32
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> examples/test2.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `learn-petgraph` (example "test3") generated 1 warning
[INFO] [stderr] warning: `learn-petgraph` (example "test2") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_petgraph-a6f79a08a764ad07)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bfa4d3b41d3036603d9bfebe6d62bc6ae8112b50c4b97e1831ffab2edb4a1a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa4d3b41d3036603d9bfebe6d62bc6ae8112b50c4b97e1831ffab2edb4a1a38", kill_on_drop: false }`
[INFO] [stdout] bfa4d3b41d3036603d9bfebe6d62bc6ae8112b50c4b97e1831ffab2edb4a1a38