[INFO] cloning repository https://github.com/MysteryJump/tapl-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MysteryJump/tapl-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMysteryJump%2Ftapl-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMysteryJump%2Ftapl-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1899d78b048b5b4b5dd94ca296609b8d1d99fc3a [INFO] checking MysteryJump/tapl-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMysteryJump%2Ftapl-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MysteryJump/tapl-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MysteryJump/tapl-rust [INFO] finished tweaking git repo https://github.com/MysteryJump/tapl-rust [INFO] tweaked toml for git repo https://github.com/MysteryJump/tapl-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/MysteryJump/tapl-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/TheDan64/inkwell` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded llvm-sys v100.2.1 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9002b3cf81a2aa26519dfa74ad828994d79b3131c1bb0e12506279375fa08789 [INFO] running `Command { std: "docker" "start" "-a" "9002b3cf81a2aa26519dfa74ad828994d79b3131c1bb0e12506279375fa08789", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9002b3cf81a2aa26519dfa74ad828994d79b3131c1bb0e12506279375fa08789", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9002b3cf81a2aa26519dfa74ad828994d79b3131c1bb0e12506279375fa08789", kill_on_drop: false }` [INFO] [stdout] 9002b3cf81a2aa26519dfa74ad828994d79b3131c1bb0e12506279375fa08789 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3f806ea5554e80bd39faf3c3cfec86c8089321eb4bd2bcfee3992a8df43f4136 [INFO] running `Command { std: "docker" "start" "-a" "3f806ea5554e80bd39faf3c3cfec86c8089321eb4bd2bcfee3992a8df43f4136", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#f768691f) [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking lock_api v0.4.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Compiling llvm-sys v100.2.1 [INFO] [stderr] Compiling inkwell_internals v0.3.0 (https://github.com/TheDan64/inkwell?branch=master#f768691f) [INFO] [stderr] Checking tapl-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/chapter7.rs:82:10 [INFO] [stdout] | [INFO] [stdout] 82 | fn parse(token_stream: Vec) {} [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/chapter7.rs:25:16 [INFO] [stdout] | [INFO] [stdout] 25 | Identifier(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 25 | Identifier(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Term` is never used [INFO] [stdout] --> src/chapter7.rs:29:6 [INFO] [stdout] | [INFO] [stdout] 29 | enum Term { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/chapter7.rs:82:10 [INFO] [stdout] | [INFO] [stdout] 82 | fn parse(token_stream: Vec) {} [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/chapter7.rs:25:16 [INFO] [stdout] | [INFO] [stdout] 25 | Identifier(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 25 | Identifier(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Term` is never used [INFO] [stdout] --> src/chapter7.rs:29:6 [INFO] [stdout] | [INFO] [stdout] 29 | enum Term { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.45s [INFO] running `Command { std: "docker" "inspect" "3f806ea5554e80bd39faf3c3cfec86c8089321eb4bd2bcfee3992a8df43f4136", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f806ea5554e80bd39faf3c3cfec86c8089321eb4bd2bcfee3992a8df43f4136", kill_on_drop: false }` [INFO] [stdout] 3f806ea5554e80bd39faf3c3cfec86c8089321eb4bd2bcfee3992a8df43f4136 [INFO] checking MysteryJump/tapl-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMysteryJump%2Ftapl-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MysteryJump/tapl-rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MysteryJump/tapl-rust [INFO] finished tweaking git repo https://github.com/MysteryJump/tapl-rust [INFO] tweaked toml for git repo https://github.com/MysteryJump/tapl-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/MysteryJump/tapl-rust 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f8bdda7ec53150f0aeaac3440af1cea650b4fe7bac1ba133949cd9f9abcc8afe [INFO] running `Command { std: "docker" "start" "-a" "f8bdda7ec53150f0aeaac3440af1cea650b4fe7bac1ba133949cd9f9abcc8afe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f8bdda7ec53150f0aeaac3440af1cea650b4fe7bac1ba133949cd9f9abcc8afe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f8bdda7ec53150f0aeaac3440af1cea650b4fe7bac1ba133949cd9f9abcc8afe", kill_on_drop: false }` [INFO] [stdout] f8bdda7ec53150f0aeaac3440af1cea650b4fe7bac1ba133949cd9f9abcc8afe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9749d13f16656a58c1f6dd500d8b42253a5fb253b43a8baa72b30055c2fd18d6 [INFO] running `Command { std: "docker" "start" "-a" "9749d13f16656a58c1f6dd500d8b42253a5fb253b43a8baa72b30055c2fd18d6", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#f768691f) [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking lock_api v0.4.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Compiling regex v1.4.5 [INFO] [stderr] Compiling llvm-sys v100.2.1 [INFO] [stderr] Compiling inkwell_internals v0.3.0 (https://github.com/TheDan64/inkwell?branch=master#f768691f) [INFO] [stderr] Checking tapl-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/chapter7.rs:82:10 [INFO] [stdout] | [INFO] [stdout] 82 | fn parse(token_stream: Vec) {} [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/chapter7.rs:25:16 [INFO] [stdout] | [INFO] [stdout] 25 | Identifier(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 25 | Identifier(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Term` is never used [INFO] [stdout] --> src/chapter7.rs:29:6 [INFO] [stdout] | [INFO] [stdout] 29 | enum Term { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token_stream` [INFO] [stdout] --> src/chapter7.rs:82:10 [INFO] [stdout] | [INFO] [stdout] 82 | fn parse(token_stream: Vec) {} [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/chapter7.rs:25:16 [INFO] [stdout] | [INFO] [stdout] 25 | Identifier(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [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] 25 | Identifier(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Term` is never used [INFO] [stdout] --> src/chapter7.rs:29:6 [INFO] [stdout] | [INFO] [stdout] 29 | enum Term { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.14s [INFO] running `Command { std: "docker" "inspect" "9749d13f16656a58c1f6dd500d8b42253a5fb253b43a8baa72b30055c2fd18d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9749d13f16656a58c1f6dd500d8b42253a5fb253b43a8baa72b30055c2fd18d6", kill_on_drop: false }` [INFO] [stdout] 9749d13f16656a58c1f6dd500d8b42253a5fb253b43a8baa72b30055c2fd18d6