[INFO] cloning repository https://github.com/yathi/rust-book-collection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yathi/rust-book-collection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyathi%2Frust-book-collection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyathi%2Frust-book-collection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a3b7128a0ae571a5f7fabc07a411cbccb1d7964
[INFO] checking yathi/rust-book-collection against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyathi%2Frust-book-collection" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yathi/rust-book-collection
[INFO] finished tweaking git repo https://github.com/yathi/rust-book-collection
[INFO] tweaked toml for git repo https://github.com/yathi/rust-book-collection written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yathi/rust-book-collection on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yathi/rust-book-collection 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be630dd924f22acc30c6ee007b65acb2deaa0d228e1bb79da2cb39a45ae8ec3b
[INFO] running `Command { std: "docker" "start" "-a" "be630dd924f22acc30c6ee007b65acb2deaa0d228e1bb79da2cb39a45ae8ec3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be630dd924f22acc30c6ee007b65acb2deaa0d228e1bb79da2cb39a45ae8ec3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be630dd924f22acc30c6ee007b65acb2deaa0d228e1bb79da2cb39a45ae8ec3b", kill_on_drop: false }`
[INFO] [stdout] be630dd924f22acc30c6ee007b65acb2deaa0d228e1bb79da2cb39a45ae8ec3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a70392cd26038880e734eeb7286a6b6937cf0b68b6cc1ee3f83f274f05a847c
[INFO] running `Command { std: "docker" "start" "-a" "2a70392cd26038880e734eeb7286a6b6937cf0b68b6cc1ee3f83f274f05a847c", kill_on_drop: false }`
[INFO] [stderr]     Checking collections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `mean` is never used
[INFO] [stdout]  --> src/averages.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn mean(numbers: &Vec<i32>) -> f32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `median` is never used
[INFO] [stdout]  --> src/averages.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn median(numbers: &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mode` is never used
[INFO] [stdout]   --> src/averages.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn mode(numbers: &Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] warning: function `mean` is never used
[INFO] [stdout]  --> src/averages.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn mean(numbers: &Vec<i32>) -> f32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `median` is never used
[INFO] [stdout]  --> src/averages.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn median(numbers: &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mode` is never used
[INFO] [stdout]   --> src/averages.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn mode(numbers: &Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2a70392cd26038880e734eeb7286a6b6937cf0b68b6cc1ee3f83f274f05a847c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a70392cd26038880e734eeb7286a6b6937cf0b68b6cc1ee3f83f274f05a847c", kill_on_drop: false }`
[INFO] [stdout] 2a70392cd26038880e734eeb7286a6b6937cf0b68b6cc1ee3f83f274f05a847c