[INFO] cloning repository https://github.com/kurisuke/fuba
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kurisuke/fuba" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurisuke%2Ffuba", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurisuke%2Ffuba'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16faa9f810a7ad20081184ac910c912bb78e1e6e
[INFO] checking kurisuke/fuba against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurisuke%2Ffuba" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kurisuke/fuba on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kurisuke/fuba
[INFO] finished tweaking git repo https://github.com/kurisuke/fuba
[INFO] tweaked toml for git repo https://github.com/kurisuke/fuba written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/kurisuke/fuba already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19a02909eda830acdba7bf5d12bb5513d9c14733c50079766aa0c02b31137f72
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "19a02909eda830acdba7bf5d12bb5513d9c14733c50079766aa0c02b31137f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19a02909eda830acdba7bf5d12bb5513d9c14733c50079766aa0c02b31137f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a02909eda830acdba7bf5d12bb5513d9c14733c50079766aa0c02b31137f72", kill_on_drop: false }`
[INFO] [stdout] 19a02909eda830acdba7bf5d12bb5513d9c14733c50079766aa0c02b31137f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2838a9fc9a725b39e0b8aa0b10ddef6113c0c1322796edf97d2ec56b71ce9c86
[INFO] running `Command { std: "docker" "start" "-a" "2838a9fc9a725b39e0b8aa0b10ddef6113c0c1322796edf97d2ec56b71ce9c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking fuba v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `pretty_print`
[INFO] [stdout]   --> src/flagcheck.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn pretty_print(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pretty_print`
[INFO] [stdout]    --> src/flagcheck.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn pretty_print(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Home2`
[INFO] [stdout]    --> src/result.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     Home2,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pretty_print`
[INFO] [stdout]   --> src/flagcheck.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn pretty_print(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pretty_print`
[INFO] [stdout]    --> src/flagcheck.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn pretty_print(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Home2`
[INFO] [stdout]    --> src/result.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     Home2,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.65s
[INFO] running `Command { std: "docker" "inspect" "2838a9fc9a725b39e0b8aa0b10ddef6113c0c1322796edf97d2ec56b71ce9c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2838a9fc9a725b39e0b8aa0b10ddef6113c0c1322796edf97d2ec56b71ce9c86", kill_on_drop: false }`
[INFO] [stdout] 2838a9fc9a725b39e0b8aa0b10ddef6113c0c1322796edf97d2ec56b71ce9c86