[INFO] fetching crate finiteelement_macros 0.1.0...
[INFO] checking finiteelement_macros-0.1.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate finiteelement_macros 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate finiteelement_macros 0.1.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate finiteelement_macros 0.1.0
[INFO] finished tweaking crates.io crate finiteelement_macros 0.1.0
[INFO] tweaked toml for crates.io crate finiteelement_macros 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", 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] 4de448faf317cec65db980eba2774997a48815e7dce1ea90ad59ac7f95b1c7f4
[INFO] running `Command { std: "docker" "start" "-a" "4de448faf317cec65db980eba2774997a48815e7dce1ea90ad59ac7f95b1c7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4de448faf317cec65db980eba2774997a48815e7dce1ea90ad59ac7f95b1c7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de448faf317cec65db980eba2774997a48815e7dce1ea90ad59ac7f95b1c7f4", kill_on_drop: false }`
[INFO] [stdout] 4de448faf317cec65db980eba2774997a48815e7dce1ea90ad59ac7f95b1c7f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] cff34a1ecf0181c9b89e941442d7604f2e69653b29d39f566555702cf2eee491
[INFO] running `Command { std: "docker" "start" "-a" "cff34a1ecf0181c9b89e941442d7604f2e69653b29d39f566555702cf2eee491", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking finiteelement_macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Acos`
[INFO] [stdout]   --> src/formal.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Acos(Formal<F>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `var`
[INFO] [stdout]    --> src/formal.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub fn var<F: Float>(n: usize) -> Formal<F> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `acos`
[INFO] [stdout]    --> src/formal.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn acos(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval`
[INFO] [stdout]    --> src/formal.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn eval(&self, var: &[F]) -> F {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Acos`
[INFO] [stdout]   --> src/formal.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Acos(Formal<F>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `var`
[INFO] [stdout]    --> src/formal.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub fn var<F: Float>(n: usize) -> Formal<F> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `acos`
[INFO] [stdout]    --> src/formal.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn acos(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval`
[INFO] [stdout]    --> src/formal.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn eval(&self, var: &[F]) -> F {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.65s
[INFO] running `Command { std: "docker" "inspect" "cff34a1ecf0181c9b89e941442d7604f2e69653b29d39f566555702cf2eee491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cff34a1ecf0181c9b89e941442d7604f2e69653b29d39f566555702cf2eee491", kill_on_drop: false }`
[INFO] [stdout] cff34a1ecf0181c9b89e941442d7604f2e69653b29d39f566555702cf2eee491