[INFO] cloning repository https://github.com/jjcamp/linkgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjcamp/linkgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjcamp%2Flinkgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjcamp%2Flinkgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62b380a530193a7fada212537b67cd5a9ec33f20
[INFO] checking jjcamp/linkgen against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjcamp%2Flinkgen" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjcamp/linkgen on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jjcamp/linkgen
[INFO] finished tweaking git repo https://github.com/jjcamp/linkgen
[INFO] tweaked toml for git repo https://github.com/jjcamp/linkgen written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jjcamp/linkgen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e866e425879880eef4d17c85e5c2b40a9d0fa30d8c9b26199bdcca2a19555366
[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" "e866e425879880eef4d17c85e5c2b40a9d0fa30d8c9b26199bdcca2a19555366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e866e425879880eef4d17c85e5c2b40a9d0fa30d8c9b26199bdcca2a19555366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e866e425879880eef4d17c85e5c2b40a9d0fa30d8c9b26199bdcca2a19555366", kill_on_drop: false }`
[INFO] [stdout] e866e425879880eef4d17c85e5c2b40a9d0fa30d8c9b26199bdcca2a19555366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb5ce0b0af1cf3538c32db1e739e1b884ef6785a7217c8b2d48dc4f0ac1696c5
[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" "eb5ce0b0af1cf3538c32db1e739e1b884ef6785a7217c8b2d48dc4f0ac1696c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking linkgen v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `exe`
[INFO] [stdout]   --> src/link.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn ext_helper(exe: &std::ffi::OsStr, alias: &str) -> String {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_exe`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]   --> src/open.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn dir(verbose: bool) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exe`
[INFO] [stdout]   --> src/link.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn ext_helper(exe: &std::ffi::OsStr, alias: &str) -> String {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_exe`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]   --> src/open.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn dir(verbose: bool) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dir_with`
[INFO] [stdout]   --> src/open.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dir_with(cmd: &str, verbose: bool) -> Result<(), Error> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dir_with`
[INFO] [stdout]   --> src/open.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn dir_with(cmd: &str, verbose: bool) -> Result<(), Error> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.23s
[INFO] running `Command { std: "docker" "inspect" "eb5ce0b0af1cf3538c32db1e739e1b884ef6785a7217c8b2d48dc4f0ac1696c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb5ce0b0af1cf3538c32db1e739e1b884ef6785a7217c8b2d48dc4f0ac1696c5", kill_on_drop: false }`
[INFO] [stdout] eb5ce0b0af1cf3538c32db1e739e1b884ef6785a7217c8b2d48dc4f0ac1696c5