[INFO] cloning repository https://github.com/dkattimu/test-case-combos-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkattimu/test-case-combos-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkattimu%2Ftest-case-combos-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkattimu%2Ftest-case-combos-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 457d857b08223a3f5910e54a0b7f9aefd37f6000
[INFO] checking dkattimu/test-case-combos-rs against try#411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51 for pr-138844
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkattimu%2Ftest-case-combos-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dkattimu/test-case-combos-rs on toolchain 411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dkattimu/test-case-combos-rs
[INFO] finished tweaking git repo https://github.com/dkattimu/test-case-combos-rs
[INFO] tweaked toml for git repo https://github.com/dkattimu/test-case-combos-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dkattimu/test-case-combos-rs 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" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 761c5d090cee4dce64928cb2681f2c03171116296e3dbe1083f582ea6392e6b3
[INFO] running `Command { std: "docker" "start" "-a" "761c5d090cee4dce64928cb2681f2c03171116296e3dbe1083f582ea6392e6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "761c5d090cee4dce64928cb2681f2c03171116296e3dbe1083f582ea6392e6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761c5d090cee4dce64928cb2681f2c03171116296e3dbe1083f582ea6392e6b3", kill_on_drop: false }`
[INFO] [stdout] 761c5d090cee4dce64928cb2681f2c03171116296e3dbe1083f582ea6392e6b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9fa74be0e8fa8afa4b14199e07807c000139ab0e8f37d75493289b149fed68e
[INFO] running `Command { std: "docker" "start" "-a" "e9fa74be0e8fa8afa4b14199e07807c000139ab0e8f37d75493289b149fed68e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling parameterized-macro v1.0.0
[INFO] [stderr]     Checking parameterized v1.0.0
[INFO] [stderr]     Checking test-case-combos-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/interval_set.rs:193:32
[INFO] [stdout]     |
[INFO] [stdout] 193 |         fn intersection(&self, other: &dyn ISet<T>) -> &dyn ISet<T> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/interval_set.rs:197:31
[INFO] [stdout]     |
[INFO] [stdout] 197 |         fn is_superset(&self, other: &dyn ISet<T>) -> bool {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/interval_set.rs:193:32
[INFO] [stdout]     |
[INFO] [stdout] 193 |         fn intersection(&self, other: &dyn ISet<T>) -> &dyn ISet<T> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/interval_set.rs:197:31
[INFO] [stdout]     |
[INFO] [stdout] 197 |         fn is_superset(&self, other: &dyn ISet<T>) -> bool {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.31s
[INFO] running `Command { std: "docker" "inspect" "e9fa74be0e8fa8afa4b14199e07807c000139ab0e8f37d75493289b149fed68e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9fa74be0e8fa8afa4b14199e07807c000139ab0e8f37d75493289b149fed68e", kill_on_drop: false }`
[INFO] [stdout] e9fa74be0e8fa8afa4b14199e07807c000139ab0e8f37d75493289b149fed68e