[INFO] cloning repository https://github.com/tamaskis/numdiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tamaskis/numdiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamaskis%2Fnumdiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamaskis%2Fnumdiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02aa65d02774465ab5f0798b10acf5461cd8e226
[INFO] checking tamaskis/numdiff against master#683dd08db5808c41baceef49368fc82a6c4767bb for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamaskis%2Fnumdiff" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/tamaskis/numdiff
[INFO] finished tweaking git repo https://github.com/tamaskis/numdiff
[INFO] tweaked toml for git repo https://github.com/tamaskis/numdiff written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tamaskis/numdiff on toolchain 683dd08db5808c41baceef49368fc82a6c4767bb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+683dd08db5808c41baceef49368fc82a6c4767bb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tamaskis/numdiff 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" "+683dd08db5808c41baceef49368fc82a6c4767bb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+683dd08db5808c41baceef49368fc82a6c4767bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "43c363ac426dd3d6a04d3b227357919a4e136686c3c3b4ad5b202f8529ada238", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "43c363ac426dd3d6a04d3b227357919a4e136686c3c3b4ad5b202f8529ada238", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+683dd08db5808c41baceef49368fc82a6c4767bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: function `acsc_deriv` is never used
[INFO] [stdout]   --> src/test_utils.rs:90:15
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub(crate) fn acsc_deriv(x: f64) -> f64 {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `asec_deriv` is never used
[INFO] [stdout]   --> src/test_utils.rs:95:15
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub(crate) fn asec_deriv(x: f64) -> f64 {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `acot_deriv` is never used
[INFO] [stdout]    --> src/test_utils.rs:100:15
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub(crate) fn acot_deriv(x: f64) -> f64 {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `acsch_deriv` is never used
[INFO] [stdout]    --> src/test_utils.rs:154:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub(crate) fn acsch_deriv(x: f64) -> f64 {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `asech_deriv` is never used
[INFO] [stdout]    --> src/test_utils.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub(crate) fn asech_deriv(x: f64) -> f64 {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `acoth_deriv` is never used
[INFO] [stdout]    --> src/test_utils.rs:164:15
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub(crate) fn acoth_deriv(x: f64) -> f64 {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "39d8a52a8de8dfa06230334e2dfe5f458c48f86cb978a65e7feee0eadcf71d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d8a52a8de8dfa06230334e2dfe5f458c48f86cb978a65e7feee0eadcf71d6e", kill_on_drop: false }`
[INFO] [stdout] 39d8a52a8de8dfa06230334e2dfe5f458c48f86cb978a65e7feee0eadcf71d6e