[INFO] fetching crate parcours 0.3.0... [INFO] checking parcours-0.3.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate parcours 0.3.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate parcours 0.3.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate parcours 0.3.0 [INFO] finished tweaking crates.io crate parcours 0.3.0 [INFO] tweaked toml for crates.io crate parcours 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate parcours 0.3.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 371f2180c8c11e23e92661be640568609d22c94bab0c6ec4f8ea500ad165e2c8 [INFO] running `Command { std: "docker" "start" "-a" "371f2180c8c11e23e92661be640568609d22c94bab0c6ec4f8ea500ad165e2c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "371f2180c8c11e23e92661be640568609d22c94bab0c6ec4f8ea500ad165e2c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "371f2180c8c11e23e92661be640568609d22c94bab0c6ec4f8ea500ad165e2c8", kill_on_drop: false }` [INFO] [stdout] 371f2180c8c11e23e92661be640568609d22c94bab0c6ec4f8ea500ad165e2c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d62e1b409452b355c61a46724b3c2fbcd4fe93d86debfc105f0d6a9dae6815a7 [INFO] running `Command { std: "docker" "start" "-a" "d62e1b409452b355c61a46724b3c2fbcd4fe93d86debfc105f0d6a9dae6815a7", kill_on_drop: false }` [INFO] [stderr] Checking parcours v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> examples/lambda.rs:44:10 [INFO] [stdout] | [INFO] [stdout] 44 | Abst(Vec<&'a str>, Box), [INFO] [stdout] | ---- ^^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Term` 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 44 | Abst((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> examples/lambda.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | Appl(Box, Vec), [INFO] [stdout] | ---- ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 50 | Appl((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/lambda.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | Var(usize), [INFO] [stdout] | --- ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] 55 | Var(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/json.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | Arr(Vec), [INFO] [stdout] | --- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `JsonVal` has derived impls for the traits `Debug` and `Clone`, but these are 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] 18 | Arr(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/json.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | Map(Vec<(S, Self)>), [INFO] [stdout] | --- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `JsonVal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [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] 19 | Map(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s [INFO] running `Command { std: "docker" "inspect" "d62e1b409452b355c61a46724b3c2fbcd4fe93d86debfc105f0d6a9dae6815a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d62e1b409452b355c61a46724b3c2fbcd4fe93d86debfc105f0d6a9dae6815a7", kill_on_drop: false }` [INFO] [stdout] d62e1b409452b355c61a46724b3c2fbcd4fe93d86debfc105f0d6a9dae6815a7