[INFO] cloning repository https://github.com/gustavderdrache/tiger [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gustavderdrache/tiger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 103f4f5f5c9498d9eb869c6fe1f1205a0d398bc5 [INFO] checking gustavderdrache/tiger against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gustavderdrache/tiger 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/gustavderdrache/tiger [INFO] finished tweaking git repo https://github.com/gustavderdrache/tiger [INFO] tweaked toml for git repo https://github.com/gustavderdrache/tiger written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/gustavderdrache/tiger 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 enum-map-internals v0.1.2 [INFO] [stderr] Downloaded quote v0.4.2 [INFO] [stderr] Downloaded proc-macro2 v0.2.3 [INFO] [stderr] Downloaded array-macro v1.0.3 [INFO] [stderr] Downloaded enum-kinds v0.4.1 [INFO] [stderr] Downloaded enum-map-derive v0.4.1 [INFO] [stderr] Downloaded syn v0.12.15 [INFO] [stderr] Downloaded enum-map v0.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 179fe53a62c67232fbb5031aa2d1ac4a158afdf1785bbbe4f958588be7cc4cd0 [INFO] running `Command { std: "docker" "start" "-a" "179fe53a62c67232fbb5031aa2d1ac4a158afdf1785bbbe4f958588be7cc4cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "179fe53a62c67232fbb5031aa2d1ac4a158afdf1785bbbe4f958588be7cc4cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "179fe53a62c67232fbb5031aa2d1ac4a158afdf1785bbbe4f958588be7cc4cd0", kill_on_drop: false }` [INFO] [stdout] 179fe53a62c67232fbb5031aa2d1ac4a158afdf1785bbbe4f958588be7cc4cd0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7c4e58737bf3fbfa12528bad1b6d12fa815cc262e3f009259dc9e7c1987e23ab [INFO] running `Command { std: "docker" "start" "-a" "7c4e58737bf3fbfa12528bad1b6d12fa815cc262e3f009259dc9e7c1987e23ab", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking array-macro v1.0.3 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking regex-syntax v0.6.6 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking enum-map-internals v0.1.2 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Compiling syn v0.12.15 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Compiling enum-map-derive v0.4.1 [INFO] [stderr] Compiling enum-kinds v0.4.1 [INFO] [stderr] Checking enum-map v0.5.0 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Checking tiger_syntax v0.1.0 (/opt/rustwide/workdir/tiger_syntax) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tiger_syntax/src/token.rs:91:16 [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tiger_syntax/src/token.rs:91:16 [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `associativity` is never read [INFO] [stdout] --> tiger_syntax/src/parser/infix.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub(crate) struct InfixParser { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | pub(crate) associativity: Associativity, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InfixParser` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `associativity` is never read [INFO] [stdout] --> tiger_syntax/src/parser/infix.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub(crate) struct InfixParser { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | pub(crate) associativity: Associativity, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InfixParser` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tigc v0.1.0 (/opt/rustwide/workdir/tigc) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.21s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15, syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "7c4e58737bf3fbfa12528bad1b6d12fa815cc262e3f009259dc9e7c1987e23ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c4e58737bf3fbfa12528bad1b6d12fa815cc262e3f009259dc9e7c1987e23ab", kill_on_drop: false }` [INFO] [stdout] 7c4e58737bf3fbfa12528bad1b6d12fa815cc262e3f009259dc9e7c1987e23ab [INFO] checking gustavderdrache/tiger against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gustavderdrache/tiger 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/gustavderdrache/tiger [INFO] finished tweaking git repo https://github.com/gustavderdrache/tiger [INFO] tweaked toml for git repo https://github.com/gustavderdrache/tiger written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/gustavderdrache/tiger 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 29ed1545d7635b192129e038a7778adc40e7724b2f919a0217ced35d68cdbf5a [INFO] running `Command { std: "docker" "start" "-a" "29ed1545d7635b192129e038a7778adc40e7724b2f919a0217ced35d68cdbf5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "29ed1545d7635b192129e038a7778adc40e7724b2f919a0217ced35d68cdbf5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29ed1545d7635b192129e038a7778adc40e7724b2f919a0217ced35d68cdbf5a", kill_on_drop: false }` [INFO] [stdout] 29ed1545d7635b192129e038a7778adc40e7724b2f919a0217ced35d68cdbf5a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7b2aa7bcaae16f9aca41b8774328faced6dcd170a76d20aa55251d41c1a45a36 [INFO] running `Command { std: "docker" "start" "-a" "7b2aa7bcaae16f9aca41b8774328faced6dcd170a76d20aa55251d41c1a45a36", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking array-macro v1.0.3 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking regex-syntax v0.6.6 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking enum-map-internals v0.1.2 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Compiling syn v0.12.15 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Compiling enum-map-derive v0.4.1 [INFO] [stderr] Compiling enum-kinds v0.4.1 [INFO] [stderr] Checking enum-map v0.5.0 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Checking tiger_syntax v0.1.0 (/opt/rustwide/workdir/tiger_syntax) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tiger_syntax/src/token.rs:91:16 [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tiger_syntax/src/token.rs:91:16 [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 91 | match >::as_ref(&maybe_identifer) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `associativity` is never read [INFO] [stdout] --> tiger_syntax/src/parser/infix.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub(crate) struct InfixParser { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | pub(crate) associativity: Associativity, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InfixParser` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `associativity` is never read [INFO] [stdout] --> tiger_syntax/src/parser/infix.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub(crate) struct InfixParser { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | pub(crate) associativity: Associativity, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `InfixParser` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tigc v0.1.0 (/opt/rustwide/workdir/tigc) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.24s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15, syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "7b2aa7bcaae16f9aca41b8774328faced6dcd170a76d20aa55251d41c1a45a36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b2aa7bcaae16f9aca41b8774328faced6dcd170a76d20aa55251d41c1a45a36", kill_on_drop: false }` [INFO] [stdout] 7b2aa7bcaae16f9aca41b8774328faced6dcd170a76d20aa55251d41c1a45a36