[INFO] cloning repository https://github.com/epsilon-phase/rsmatrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/epsilon-phase/rsmatrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fepsilon-phase%2Frsmatrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fepsilon-phase%2Frsmatrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf64cebc3a572ebd3d2055386f1420cbafa27474
[INFO] checking epsilon-phase/rsmatrix against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fepsilon-phase%2Frsmatrix" "/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/epsilon-phase/rsmatrix on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/epsilon-phase/rsmatrix
[INFO] finished tweaking git repo https://github.com/epsilon-phase/rsmatrix
[INFO] tweaked toml for git repo https://github.com/epsilon-phase/rsmatrix written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/epsilon-phase/rsmatrix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a83de9e09f94d7737d4e1e6513c0081cc8d96a0ac4d06d44f8a790cc2f54b3c
[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" "9a83de9e09f94d7737d4e1e6513c0081cc8d96a0ac4d06d44f8a790cc2f54b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a83de9e09f94d7737d4e1e6513c0081cc8d96a0ac4d06d44f8a790cc2f54b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a83de9e09f94d7737d4e1e6513c0081cc8d96a0ac4d06d44f8a790cc2f54b3c", kill_on_drop: false }`
[INFO] [stdout] 9a83de9e09f94d7737d4e1e6513c0081cc8d96a0ac4d06d44f8a790cc2f54b3c
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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] 565a3fb4a6c852c8e09c8513cb8a8bbd1416d49a23d697aa941fda1bfeda60aa
[INFO] running `Command { std: "docker" "start" "-a" "565a3fb4a6c852c8e09c8513cb8a8bbd1416d49a23d697aa941fda1bfeda60aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking terminal_size v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking rsmatrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Up`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Up,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RelMove`
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     RelMove(u32, Direction),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EraseLine`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     EraseLine,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Reset`
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Reset,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Up`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Up,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RelMove`
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     RelMove(u32, Direction),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EraseLine`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     EraseLine,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Reset`
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Reset,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.14s
[INFO] running `Command { std: "docker" "inspect" "565a3fb4a6c852c8e09c8513cb8a8bbd1416d49a23d697aa941fda1bfeda60aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "565a3fb4a6c852c8e09c8513cb8a8bbd1416d49a23d697aa941fda1bfeda60aa", kill_on_drop: false }`
[INFO] [stdout] 565a3fb4a6c852c8e09c8513cb8a8bbd1416d49a23d697aa941fda1bfeda60aa