[INFO] fetching crate ca 0.1.1... [INFO] checking ca-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate ca 0.1.1 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate ca 0.1.1 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 ca 0.1.1 [INFO] finished tweaking crates.io crate ca 0.1.1 [INFO] tweaked toml for crates.io crate ca 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 27 packages [INFO] [stderr] Adding bitflags v0.4.0 (latest: v2.5.0) [INFO] [stderr] Adding encode_unicode v0.1.3 (latest: v1.0.0) [INFO] [stderr] Adding nix v0.5.1 (latest: v0.28.0) [INFO] [stderr] Adding num v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding num-bigint v0.1.44 (latest: v0.4.4) [INFO] [stderr] Adding num-complex v0.1.43 (latest: v0.4.5) [INFO] [stderr] Adding num-rational v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding rustyline v1.0.0 (latest: v14.0.0) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-bigint v0.1.44 [INFO] [stderr] Downloaded num-rational v0.1.42 [INFO] [stderr] Downloaded rustc-serialize v0.3.25 [INFO] [stderr] Downloaded num v0.1.42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0455fe53d8a8cc125bb7bb8539113591b9e5917a36734c0b6d975094548e0986 [INFO] running `Command { std: "docker" "start" "-a" "0455fe53d8a8cc125bb7bb8539113591b9e5917a36734c0b6d975094548e0986", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0455fe53d8a8cc125bb7bb8539113591b9e5917a36734c0b6d975094548e0986", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0455fe53d8a8cc125bb7bb8539113591b9e5917a36734c0b6d975094548e0986", kill_on_drop: false }` [INFO] [stdout] 0455fe53d8a8cc125bb7bb8539113591b9e5917a36734c0b6d975094548e0986 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8cb516443a8f83edf6b01a7cd6a320b175bfe2cf4a661afc292d7f21171e972f [INFO] running `Command { std: "docker" "start" "-a" "8cb516443a8f83edf6b01a7cd6a320b175bfe2cf4a661afc292d7f21171e972f", kill_on_drop: false }` [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking encode_unicode v0.1.3 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking nix v0.5.1 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking rustyline v1.0.0 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking ca v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/parser.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use std::iter::{Iterator, Peekable}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [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: `...` range patterns are deprecated [INFO] [stdout] --> src/tokenizer.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | '0' ... '9' | '.' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/parser.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use std::iter::{Iterator, Peekable}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [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: `...` range patterns are deprecated [INFO] [stdout] --> src/tokenizer.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | '0' ... '9' | '.' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.70s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint v0.1.44, num-complex v0.1.43, num-rational v0.1.42 [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" "8cb516443a8f83edf6b01a7cd6a320b175bfe2cf4a661afc292d7f21171e972f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8cb516443a8f83edf6b01a7cd6a320b175bfe2cf4a661afc292d7f21171e972f", kill_on_drop: false }` [INFO] [stdout] 8cb516443a8f83edf6b01a7cd6a320b175bfe2cf4a661afc292d7f21171e972f