[INFO] fetching crate lancelot-flirt 0.8.8... [INFO] checking lancelot-flirt-0.8.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate lancelot-flirt 0.8.8 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate lancelot-flirt 0.8.8 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 crates.io crate lancelot-flirt 0.8.8 [INFO] finished tweaking crates.io crate lancelot-flirt 0.8.8 [INFO] tweaked toml for crates.io crate lancelot-flirt 0.8.8 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate lancelot-flirt 0.8.8 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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded inflate v0.4.5 [INFO] [stderr] Downloaded fern v0.6.2 [INFO] [stderr] Downloaded better-panic v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7fe86160b73253e9353362c3fd3c391d4b66090d955e43929a441536e09b1e25 [INFO] running `Command { std: "docker" "start" "-a" "7fe86160b73253e9353362c3fd3c391d4b66090d955e43929a441536e09b1e25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7fe86160b73253e9353362c3fd3c391d4b66090d955e43929a441536e09b1e25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7fe86160b73253e9353362c3fd3c391d4b66090d955e43929a441536e09b1e25", kill_on_drop: false }` [INFO] [stdout] 7fe86160b73253e9353362c3fd3c391d4b66090d955e43929a441536e09b1e25 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dda866af44b5cfb3364057069e4dee4120e1145ab1bff8cf89db83e5f46076db [INFO] running `Command { std: "docker" "start" "-a" "dda866af44b5cfb3364057069e4dee4120e1145ab1bff8cf89db83e5f46076db", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.63 [INFO] [stderr] Compiling quote v1.0.28 [INFO] [stderr] Compiling unicode-ident v1.0.9 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Checking os_str_bytes v6.5.1 [INFO] [stderr] Checking gimli v0.27.3 [INFO] [stderr] Checking miniz_oxide v0.6.2 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking aho-corasick v1.0.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking object v0.30.4 [INFO] [stderr] Checking regex-syntax v0.7.2 [INFO] [stderr] Compiling thiserror v1.0.40 [INFO] [stderr] Compiling serde v1.0.164 [INFO] [stderr] Compiling syn v2.0.22 [INFO] [stderr] Compiling anyhow v1.0.71 [INFO] [stderr] Checking textwrap v0.16.0 [INFO] [stderr] Compiling backtrace v0.3.67 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking console v0.15.7 [INFO] [stderr] Checking regex v1.8.4 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking fern v0.6.2 [INFO] [stderr] Checking addr2line v0.19.0 [INFO] [stderr] Checking chrono v0.4.26 [INFO] [stderr] Checking crossbeam-epoch v0.9.15 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Compiling serde_json v1.0.99 [INFO] [stderr] Compiling rayon-core v1.11.0 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking ryu v1.0.13 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking better-panic v0.3.0 [INFO] [stderr] Compiling thiserror-impl v1.0.40 [INFO] [stderr] Compiling serde_derive v1.0.164 [INFO] [stderr] Checking rayon v1.7.0 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking lancelot-flirt v0.8.8 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/decision_tree.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [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] [stderr] Checking ciborium v0.2.1 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/decision_tree.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `pat` is imported redundantly [INFO] [stdout] --> src/lib.rs:574:17 [INFO] [stdout] | [INFO] [stdout] 574 | use super::{pat, sig, *}; [INFO] [stdout] | ^^^ - the item `pat` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `sig` is imported redundantly [INFO] [stdout] --> src/lib.rs:574:22 [INFO] [stdout] | [INFO] [stdout] 574 | use super::{pat, sig, *}; [INFO] [stdout] | ^^^ - the item `sig` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.53s [INFO] running `Command { std: "docker" "inspect" "dda866af44b5cfb3364057069e4dee4120e1145ab1bff8cf89db83e5f46076db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dda866af44b5cfb3364057069e4dee4120e1145ab1bff8cf89db83e5f46076db", kill_on_drop: false }` [INFO] [stdout] dda866af44b5cfb3364057069e4dee4120e1145ab1bff8cf89db83e5f46076db [INFO] checking lancelot-flirt-0.8.8 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate lancelot-flirt 0.8.8 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate lancelot-flirt 0.8.8 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 crates.io crate lancelot-flirt 0.8.8 [INFO] finished tweaking crates.io crate lancelot-flirt 0.8.8 [INFO] tweaked toml for crates.io crate lancelot-flirt 0.8.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate lancelot-flirt 0.8.8 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7d36db0b7a289efc9f62dc520838cdb927121ca759f41801f9bc92262c720d4e [INFO] running `Command { std: "docker" "start" "-a" "7d36db0b7a289efc9f62dc520838cdb927121ca759f41801f9bc92262c720d4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d36db0b7a289efc9f62dc520838cdb927121ca759f41801f9bc92262c720d4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d36db0b7a289efc9f62dc520838cdb927121ca759f41801f9bc92262c720d4e", kill_on_drop: false }` [INFO] [stdout] 7d36db0b7a289efc9f62dc520838cdb927121ca759f41801f9bc92262c720d4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 86f7e163b93c1a81f64cd6450a26b8e4a92f26114e288b1fdc97d46e9b17e848 [INFO] running `Command { std: "docker" "start" "-a" "86f7e163b93c1a81f64cd6450a26b8e4a92f26114e288b1fdc97d46e9b17e848", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.63 [INFO] [stderr] Compiling unicode-ident v1.0.9 [INFO] [stderr] Compiling quote v1.0.28 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Checking os_str_bytes v6.5.1 [INFO] [stderr] Checking gimli v0.27.3 [INFO] [stderr] Checking miniz_oxide v0.6.2 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking aho-corasick v1.0.2 [INFO] [stderr] Checking object v0.30.4 [INFO] [stderr] Checking textwrap v0.16.0 [INFO] [stderr] Compiling thiserror v1.0.40 [INFO] [stderr] Compiling anyhow v1.0.71 [INFO] [stderr] Compiling serde v1.0.164 [INFO] [stderr] Compiling syn v2.0.22 [INFO] [stderr] Checking regex-syntax v0.7.2 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Compiling backtrace v0.3.67 [INFO] [stderr] Checking console v0.15.7 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking fern v0.6.2 [INFO] [stderr] Checking chrono v0.4.26 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking addr2line v0.19.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.15 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Compiling rayon-core v1.11.0 [INFO] [stderr] Compiling serde_json v1.0.99 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking ryu v1.0.13 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking regex v1.8.4 [INFO] [stderr] Checking rayon v1.7.0 [INFO] [stderr] Checking better-panic v0.3.0 [INFO] [stderr] Compiling serde_derive v1.0.164 [INFO] [stderr] Compiling thiserror-impl v1.0.40 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking lancelot-flirt v0.8.8 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/decision_tree.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [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] [stderr] Checking ciborium v0.2.1 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/decision_tree.rs:162:5 [INFO] [stdout] | [INFO] [stdout] 162 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `pat` is imported redundantly [INFO] [stdout] --> src/lib.rs:574:17 [INFO] [stdout] | [INFO] [stdout] 574 | use super::{pat, sig, *}; [INFO] [stdout] | ^^^ - the item `pat` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `sig` is imported redundantly [INFO] [stdout] --> src/lib.rs:574:22 [INFO] [stdout] | [INFO] [stdout] 574 | use super::{pat, sig, *}; [INFO] [stdout] | ^^^ - the item `sig` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.18s [INFO] running `Command { std: "docker" "inspect" "86f7e163b93c1a81f64cd6450a26b8e4a92f26114e288b1fdc97d46e9b17e848", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86f7e163b93c1a81f64cd6450a26b8e4a92f26114e288b1fdc97d46e9b17e848", kill_on_drop: false }` [INFO] [stdout] 86f7e163b93c1a81f64cd6450a26b8e4a92f26114e288b1fdc97d46e9b17e848