[INFO] cloning repository https://github.com/Nilstrieb/lambda-calculus [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nilstrieb/lambda-calculus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 700c8624f65c24ea44c28d55a20e3f04f4cb6b24 [INFO] checking Nilstrieb/lambda-calculus/700c8624f65c24ea44c28d55a20e3f04f4cb6b24 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus" "/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/Nilstrieb/lambda-calculus on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Nilstrieb/lambda-calculus [INFO] finished tweaking git repo https://github.com/Nilstrieb/lambda-calculus [INFO] tweaked toml for git repo https://github.com/Nilstrieb/lambda-calculus written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Nilstrieb/lambda-calculus 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a0bf9a59162d23c9cb236fa7e9caaf2d07536d361975d2d24a45fb1f2b0b2a9f [INFO] running `Command { std: "docker" "start" "-a" "a0bf9a59162d23c9cb236fa7e9caaf2d07536d361975d2d24a45fb1f2b0b2a9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a0bf9a59162d23c9cb236fa7e9caaf2d07536d361975d2d24a45fb1f2b0b2a9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0bf9a59162d23c9cb236fa7e9caaf2d07536d361975d2d24a45fb1f2b0b2a9f", kill_on_drop: false }` [INFO] [stdout] a0bf9a59162d23c9cb236fa7e9caaf2d07536d361975d2d24a45fb1f2b0b2a9f [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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 55a03d4826ceddcb67aad68ec868d941bedb7dd32a45fc1a11c22002209dff08 [INFO] running `Command { std: "docker" "start" "-a" "55a03d4826ceddcb67aad68ec868d941bedb7dd32a45fc1a11c22002209dff08", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling libc v0.2.116 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling beef v0.5.1 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling serde_json v1.0.78 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking yansi v0.5.0 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking similar v2.1.0 [INFO] [stderr] Checking ariadne v0.1.3 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking console v0.15.0 [INFO] [stderr] Compiling getrandom v0.2.4 [INFO] [stderr] Compiling const-random-macro v0.1.13 [INFO] [stderr] Checking const-random v0.1.13 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Checking chumsky v0.7.0 [INFO] [stderr] Compiling logos-derive v0.12.0 [INFO] [stderr] Checking logos v0.12.0 [INFO] [stderr] Checking lambda-calculus v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:56:14 [INFO] [stdout] | [INFO] [stdout] 56 | Name(String), [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 56 | Name(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `callee` and `argument` are never read [INFO] [stdout] --> src/lib.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 57 | Application { [INFO] [stdout] | ----------- fields in this variant [INFO] [stdout] 58 | callee: Box, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 59 | argument: Box, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `params` and `body` are never read [INFO] [stdout] --> src/lib.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 61 | Abstraction { [INFO] [stdout] | ----------- fields in this variant [INFO] [stdout] 62 | params: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 63 | body: Box, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking serde_yaml v0.8.23 [INFO] [stderr] Checking insta v1.12.0 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:56:14 [INFO] [stdout] | [INFO] [stdout] 56 | Name(String), [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 56 | Name(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `callee` and `argument` are never read [INFO] [stdout] --> src/lib.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 57 | Application { [INFO] [stdout] | ----------- fields in this variant [INFO] [stdout] 58 | callee: Box, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 59 | argument: Box, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `params` and `body` are never read [INFO] [stdout] --> src/lib.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 61 | Abstraction { [INFO] [stdout] | ----------- fields in this variant [INFO] [stdout] 62 | params: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 63 | body: Box, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.62s [INFO] running `Command { std: "docker" "inspect" "55a03d4826ceddcb67aad68ec868d941bedb7dd32a45fc1a11c22002209dff08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55a03d4826ceddcb67aad68ec868d941bedb7dd32a45fc1a11c22002209dff08", kill_on_drop: false }` [INFO] [stdout] 55a03d4826ceddcb67aad68ec868d941bedb7dd32a45fc1a11c22002209dff08