[INFO] fetching crate func_trace 1.0.3... [INFO] checking func_trace-1.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate func_trace 1.0.3 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate func_trace 1.0.3 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] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml [INFO] started tweaking crates.io crate func_trace 1.0.3 [INFO] finished tweaking crates.io crate func_trace 1.0.3 [INFO] tweaked toml for crates.io crate func_trace 1.0.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate crates.io crate func_trace 1.0.3 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 crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded gag v0.1.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 68a954c7de766c6004e4574aae8db960c38c60f08873a7d566313a7f50e42174 [INFO] running `Command { std: "docker" "start" "-a" "68a954c7de766c6004e4574aae8db960c38c60f08873a7d566313a7f50e42174", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "68a954c7de766c6004e4574aae8db960c38c60f08873a7d566313a7f50e42174", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68a954c7de766c6004e4574aae8db960c38c60f08873a7d566313a7f50e42174", kill_on_drop: false }` [INFO] [stdout] 68a954c7de766c6004e4574aae8db960c38c60f08873a7d566313a7f50e42174 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2498a56f2f1732002912beef2a679b9b9bf03d17d4ec6d409baefefafa1fa2b6 [INFO] running `Command { std: "docker" "start" "-a" "2498a56f2f1732002912beef2a679b9b9bf03d17d4ec6d409baefefafa1fa2b6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking gag v0.1.10 [INFO] [stderr] Checking func_trace v1.0.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/args.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use syn::{self, spanned::Spanned}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/args.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use syn::{self, spanned::Spanned}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/args.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use syn::{self, spanned::Spanned}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/example_pretty.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | struct Foo(String); [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foo` 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] 10 | struct Foo(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.35s [INFO] running `Command { std: "docker" "inspect" "2498a56f2f1732002912beef2a679b9b9bf03d17d4ec6d409baefefafa1fa2b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2498a56f2f1732002912beef2a679b9b9bf03d17d4ec6d409baefefafa1fa2b6", kill_on_drop: false }` [INFO] [stdout] 2498a56f2f1732002912beef2a679b9b9bf03d17d4ec6d409baefefafa1fa2b6 [INFO] checking func_trace-1.0.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate func_trace 1.0.3 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate func_trace 1.0.3 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] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml [INFO] started tweaking crates.io crate func_trace 1.0.3 [INFO] finished tweaking crates.io crate func_trace 1.0.3 [INFO] tweaked toml for crates.io crate func_trace 1.0.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate func_trace 1.0.3 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a2236f7b945578e4ccadef4fea3d0583fbb618c2c93214ee0aee83a7ca29c0ab [INFO] running `Command { std: "docker" "start" "-a" "a2236f7b945578e4ccadef4fea3d0583fbb618c2c93214ee0aee83a7ca29c0ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2236f7b945578e4ccadef4fea3d0583fbb618c2c93214ee0aee83a7ca29c0ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2236f7b945578e4ccadef4fea3d0583fbb618c2c93214ee0aee83a7ca29c0ab", kill_on_drop: false }` [INFO] [stdout] a2236f7b945578e4ccadef4fea3d0583fbb618c2c93214ee0aee83a7ca29c0ab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3359a0278735740cc0f7d66f4e4298b91f2d684a796fc932558ee26355535175 [INFO] running `Command { std: "docker" "start" "-a" "3359a0278735740cc0f7d66f4e4298b91f2d684a796fc932558ee26355535175", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Checking quote v1.0.9 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking gag v0.1.10 [INFO] [stderr] Checking func_trace v1.0.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/args.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use syn::{self, spanned::Spanned}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/args.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use syn::{self, spanned::Spanned}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/args.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use syn::{self, spanned::Spanned}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/example_pretty.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | struct Foo(String); [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foo` 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] 10 | struct Foo(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.11s [INFO] running `Command { std: "docker" "inspect" "3359a0278735740cc0f7d66f4e4298b91f2d684a796fc932558ee26355535175", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3359a0278735740cc0f7d66f4e4298b91f2d684a796fc932558ee26355535175", kill_on_drop: false }` [INFO] [stdout] 3359a0278735740cc0f7d66f4e4298b91f2d684a796fc932558ee26355535175