[INFO] cloning repository https://github.com/ishitatsuyuki/egraph-type-inference [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ishitatsuyuki/egraph-type-inference" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fishitatsuyuki%2Fegraph-type-inference", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fishitatsuyuki%2Fegraph-type-inference'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 67c34570d9d6e871818261601499f0044e9d18e1 [INFO] checking ishitatsuyuki/egraph-type-inference against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fishitatsuyuki%2Fegraph-type-inference" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ishitatsuyuki/egraph-type-inference on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ishitatsuyuki/egraph-type-inference [INFO] finished tweaking git repo https://github.com/ishitatsuyuki/egraph-type-inference [INFO] tweaked toml for git repo https://github.com/ishitatsuyuki/egraph-type-inference written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ishitatsuyuki/egraph-type-inference 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rustyline v8.2.0 [INFO] [stderr] Downloaded error-code v2.3.0 [INFO] [stderr] Downloaded clipboard-win v4.2.1 [INFO] [stderr] Downloaded fd-lock v2.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 88fe05ca529096e86e4d6330b31d3aeba997f5c83f2d5a9a2b73c6c411bfe3e8 [INFO] running `Command { std: "docker" "start" "-a" "88fe05ca529096e86e4d6330b31d3aeba997f5c83f2d5a9a2b73c6c411bfe3e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "88fe05ca529096e86e4d6330b31d3aeba997f5c83f2d5a9a2b73c6c411bfe3e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "88fe05ca529096e86e4d6330b31d3aeba997f5c83f2d5a9a2b73c6c411bfe3e8", kill_on_drop: false }` [INFO] [stdout] 88fe05ca529096e86e4d6330b31d3aeba997f5c83f2d5a9a2b73c6c411bfe3e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 08ed37ed0903cf93505c33a033f3552a485296a0ee9ea5ca8730ce22efae9197 [INFO] running `Command { std: "docker" "start" "-a" "08ed37ed0903cf93505c33a033f3552a485296a0ee9ea5ca8730ce22efae9197", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking endian-type v0.1.2 [INFO] [stderr] Compiling beef v0.5.1 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking unicode-segmentation v1.8.0 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking nibble_vec v0.1.0 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Checking radix_trie v0.2.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking petgraph v0.5.1 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking fd-lock v2.0.0 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Compiling logos-derive v0.12.0 [INFO] [stderr] Checking rustyline v8.2.0 [INFO] [stderr] Checking logos v0.12.0 [INFO] [stderr] Checking typeinference v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/infer.rs:286:110 [INFO] [stdout] | [INFO] [stdout] 286 | ... Expression::Lambda { arg_ty: Some(self.eclass_to_ast(*arg_ty, &mut HashSet::new())), arg: arg.clone(), body: Box::new(self.fill_ast... [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/infer.rs:286:110 [INFO] [stdout] | [INFO] [stdout] 286 | ... Expression::Lambda { arg_ty: Some(self.eclass_to_ast(*arg_ty, &mut HashSet::new())), arg: arg.clone(), body: Box::new(self.fill_ast... [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.82s [INFO] running `Command { std: "docker" "inspect" "08ed37ed0903cf93505c33a033f3552a485296a0ee9ea5ca8730ce22efae9197", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08ed37ed0903cf93505c33a033f3552a485296a0ee9ea5ca8730ce22efae9197", kill_on_drop: false }` [INFO] [stdout] 08ed37ed0903cf93505c33a033f3552a485296a0ee9ea5ca8730ce22efae9197 [INFO] checking ishitatsuyuki/egraph-type-inference against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fishitatsuyuki%2Fegraph-type-inference" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ishitatsuyuki/egraph-type-inference on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ishitatsuyuki/egraph-type-inference [INFO] finished tweaking git repo https://github.com/ishitatsuyuki/egraph-type-inference [INFO] tweaked toml for git repo https://github.com/ishitatsuyuki/egraph-type-inference written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ishitatsuyuki/egraph-type-inference 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ee703eacf89e017a252e81c860d483f87f84a4a74a1a95c936204b4ad0a404b7 [INFO] running `Command { std: "docker" "start" "-a" "ee703eacf89e017a252e81c860d483f87f84a4a74a1a95c936204b4ad0a404b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ee703eacf89e017a252e81c860d483f87f84a4a74a1a95c936204b4ad0a404b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee703eacf89e017a252e81c860d483f87f84a4a74a1a95c936204b4ad0a404b7", kill_on_drop: false }` [INFO] [stdout] ee703eacf89e017a252e81c860d483f87f84a4a74a1a95c936204b4ad0a404b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b949b1367fcf79fc603918cc6dd5d1f6dfbbbfc9c7326c6d936cbdd29835fc82 [INFO] running `Command { std: "docker" "start" "-a" "b949b1367fcf79fc603918cc6dd5d1f6dfbbbfc9c7326c6d936cbdd29835fc82", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling beef v0.5.1 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Checking endian-type v0.1.2 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking unicode-segmentation v1.8.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking nibble_vec v0.1.0 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Checking radix_trie v0.2.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking petgraph v0.5.1 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking fd-lock v2.0.0 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Compiling logos-derive v0.12.0 [INFO] [stderr] Checking rustyline v8.2.0 [INFO] [stderr] Checking logos v0.12.0 [INFO] [stderr] Checking typeinference v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/infer.rs:286:110 [INFO] [stdout] | [INFO] [stdout] 286 | ... Expression::Lambda { arg_ty: Some(self.eclass_to_ast(*arg_ty, &mut HashSet::new())), arg: arg.clone(), body: Box::new(self.fill_ast... [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/infer.rs:286:110 [INFO] [stdout] | [INFO] [stdout] 286 | ... Expression::Lambda { arg_ty: Some(self.eclass_to_ast(*arg_ty, &mut HashSet::new())), arg: arg.clone(), body: Box::new(self.fill_ast... [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.37s [INFO] running `Command { std: "docker" "inspect" "b949b1367fcf79fc603918cc6dd5d1f6dfbbbfc9c7326c6d936cbdd29835fc82", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b949b1367fcf79fc603918cc6dd5d1f6dfbbbfc9c7326c6d936cbdd29835fc82", kill_on_drop: false }` [INFO] [stdout] b949b1367fcf79fc603918cc6dd5d1f6dfbbbfc9c7326c6d936cbdd29835fc82