[INFO] cloning repository https://github.com/exo-cortex/rust_shelf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/exo-cortex/rust_shelf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexo-cortex%2Frust_shelf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexo-cortex%2Frust_shelf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9656cbd12e4f5ca09bc361caf13fce1fe2660c38
[INFO] checking exo-cortex/rust_shelf against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexo-cortex%2Frust_shelf" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exo-cortex/rust_shelf on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/exo-cortex/rust_shelf
[INFO] finished tweaking git repo https://github.com/exo-cortex/rust_shelf
[INFO] tweaked toml for git repo https://github.com/exo-cortex/rust_shelf written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/exo-cortex/rust_shelf 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 362c5b71223066232232e7d7982bd1eb9b2fffa31618b4fbe514806239c836fd
[INFO] running `Command { std: "docker" "start" "-a" "362c5b71223066232232e7d7982bd1eb9b2fffa31618b4fbe514806239c836fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "362c5b71223066232232e7d7982bd1eb9b2fffa31618b4fbe514806239c836fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362c5b71223066232232e7d7982bd1eb9b2fffa31618b4fbe514806239c836fd", kill_on_drop: false }`
[INFO] [stdout] 362c5b71223066232232e7d7982bd1eb9b2fffa31618b4fbe514806239c836fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b995858e04d3a580839b69a137308ca3ef28c1b234964a7264b69b5a9fad4291
[INFO] running `Command { std: "docker" "start" "-a" "b995858e04d3a580839b69a137308ca3ef28c1b234964a7264b69b5a9fad4291", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_shelf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `SliceRandom` is imported redundantly
[INFO] [stdout]  --> src/shelf.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{prelude::*, seq::SliceRandom};
[INFO] [stdout]   |            ----------  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            the item `SliceRandom` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SliceRandom` is imported redundantly
[INFO] [stdout]  --> src/shelf.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{prelude::*, seq::SliceRandom};
[INFO] [stdout]   |            ----------  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            the item `SliceRandom` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_board`
[INFO] [stdout]    --> src/shelf.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut first_board = board::Board::new(self.shelf_width, self.shelf_normal, self.board_thickness);
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_board`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intervals`
[INFO] [stdout]    --> src/shelf.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut intervals: Vec<Vec<(f64, f64)>> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intervals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_board`
[INFO] [stdout]    --> src/shelf.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut first_board = board::Board::new(self.shelf_width, self.shelf_normal, self.board_thickness);
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_board`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intervals`
[INFO] [stdout]    --> src/shelf.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut intervals: Vec<Vec<(f64, f64)>> = Vec::new();
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intervals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shelf.rs:110:7
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut first_board = board::Board::new(self.shelf_width, self.shelf_normal, self.board_thickness);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shelf.rs:111:7
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut intervals: Vec<Vec<(f64, f64)>> = Vec::new();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shelf.rs:110:7
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut first_board = board::Board::new(self.shelf_width, self.shelf_normal, self.board_thickness);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shelf.rs:111:7
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let mut intervals: Vec<Vec<(f64, f64)>> = Vec::new();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "b995858e04d3a580839b69a137308ca3ef28c1b234964a7264b69b5a9fad4291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b995858e04d3a580839b69a137308ca3ef28c1b234964a7264b69b5a9fad4291", kill_on_drop: false }`
[INFO] [stdout] b995858e04d3a580839b69a137308ca3ef28c1b234964a7264b69b5a9fad4291
