[INFO] cloning repository https://github.com/rektdeckard/rust-concepts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rektdeckard/rust-concepts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frektdeckard%2Frust-concepts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frektdeckard%2Frust-concepts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3919b8ce65f6ae0483cbf3a0bcb08825818624e
[INFO] checking rektdeckard/rust-concepts against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frektdeckard%2Frust-concepts" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rektdeckard/rust-concepts on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rektdeckard/rust-concepts
[INFO] finished tweaking git repo https://github.com/rektdeckard/rust-concepts
[INFO] tweaked toml for git repo https://github.com/rektdeckard/rust-concepts written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/rektdeckard/rust-concepts already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74c01ce1addb5669df9a888e0cd9091798de1844b13cb4be96a7ac09dab34838
[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" "74c01ce1addb5669df9a888e0cd9091798de1844b13cb4be96a7ac09dab34838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74c01ce1addb5669df9a888e0cd9091798de1844b13cb4be96a7ac09dab34838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c01ce1addb5669df9a888e0cd9091798de1844b13cb4be96a7ac09dab34838", kill_on_drop: false }`
[INFO] [stdout] 74c01ce1addb5669df9a888e0cd9091798de1844b13cb4be96a7ac09dab34838
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eede4f70fa2541b2c2f64b950ad6046cd2a1b472b80dba11db54559d54eee5c
[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" "3eede4f70fa2541b2c2f64b950ad6046cd2a1b472b80dba11db54559d54eee5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]     Checking concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]     Checking standard v0.1.0 (/opt/rustwide/workdir/standard)
[INFO] [stderr]     Checking smart-pointers v0.1.0 (/opt/rustwide/workdir/smart-pointers)
[INFO] [stderr]     Checking vector v0.1.0 (/opt/rustwide/workdir/vector)
[INFO] [stderr]     Checking linked-list v0.1.0 (/opt/rustwide/workdir/linked-list)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stdout] warning: field is never read: `celcius`
[INFO] [stdout]  --> traits/src/convert.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     celcius: f64,
[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: `new`
[INFO] [stdout]   --> traits/src/convert.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(celcius: f64) -> Temperature {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_fahrenheit`
[INFO] [stdout]   --> traits/src/convert.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn in_fahrenheit(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_celcius`
[INFO] [stdout]   --> traits/src/convert.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn in_celcius(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_kelvin`
[INFO] [stdout]   --> traits/src/convert.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn in_kelvin(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "3eede4f70fa2541b2c2f64b950ad6046cd2a1b472b80dba11db54559d54eee5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eede4f70fa2541b2c2f64b950ad6046cd2a1b472b80dba11db54559d54eee5c", kill_on_drop: false }`
[INFO] [stdout] 3eede4f70fa2541b2c2f64b950ad6046cd2a1b472b80dba11db54559d54eee5c