[INFO] cloning repository https://github.com/LU15W1R7H/joy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LU15W1R7H/joy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fjoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fjoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7214191ca919c860f35f07b38bc59a1fedeba7c9
[INFO] checking LU15W1R7H/joy against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLU15W1R7H%2Fjoy" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LU15W1R7H/joy on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LU15W1R7H/joy
[INFO] finished tweaking git repo https://github.com/LU15W1R7H/joy
[INFO] tweaked toml for git repo https://github.com/LU15W1R7H/joy written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/LU15W1R7H/joy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21f6860b25b60c0e295df4d96482929d41b4e62ae67f1c1e9186fd602e528bbd
[INFO] running `Command { std: "docker" "start" "-a" "21f6860b25b60c0e295df4d96482929d41b4e62ae67f1c1e9186fd602e528bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21f6860b25b60c0e295df4d96482929d41b4e62ae67f1c1e9186fd602e528bbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f6860b25b60c0e295df4d96482929d41b4e62ae67f1c1e9186fd602e528bbd", kill_on_drop: false }`
[INFO] [stdout] 21f6860b25b60c0e295df4d96482929d41b4e62ae67f1c1e9186fd602e528bbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e020ba79fc29cd50cb7d146288be1303923fabc1a59778c04056915e4e8640a0
[INFO] running `Command { std: "docker" "start" "-a" "e020ba79fc29cd50cb7d146288be1303923fabc1a59778c04056915e4e8640a0", kill_on_drop: false }`
[INFO] [stderr]     Checking smart-pointers v0.1.0 (/opt/rustwide/workdir/smart-pointers)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/cell.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(value: T) -> Self {
[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]   --> smart-pointers/src/rc.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(v: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shared`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Shared(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exclusive`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Exclusive,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn borrow(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow_mut`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn borrow_mut(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/cell.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(value: T) -> Self {
[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]   --> smart-pointers/src/rc.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(v: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shared`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Shared(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exclusive`
[INFO] [stdout]  --> smart-pointers/src/refcell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Exclusive,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn borrow(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `borrow_mut`
[INFO] [stdout]   --> smart-pointers/src/refcell.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn borrow_mut(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "e020ba79fc29cd50cb7d146288be1303923fabc1a59778c04056915e4e8640a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e020ba79fc29cd50cb7d146288be1303923fabc1a59778c04056915e4e8640a0", kill_on_drop: false }`
[INFO] [stdout] e020ba79fc29cd50cb7d146288be1303923fabc1a59778c04056915e4e8640a0