[INFO] cloning repository https://github.com/david-a-wheeler/metamath-knife [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/david-a-wheeler/metamath-knife" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-a-wheeler%2Fmetamath-knife", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-a-wheeler%2Fmetamath-knife'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d63e26b5ca449f187214d3421fe5440725c331f8 [INFO] checking david-a-wheeler/metamath-knife against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavid-a-wheeler%2Fmetamath-knife" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/david-a-wheeler/metamath-knife 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/david-a-wheeler/metamath-knife [INFO] finished tweaking git repo https://github.com/david-a-wheeler/metamath-knife [INFO] tweaked toml for git repo https://github.com/david-a-wheeler/metamath-knife written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/david-a-wheeler/metamath-knife 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 time v0.3.21 [INFO] [stderr] Downloaded yansi-term v0.1.2 [INFO] [stderr] Downloaded annotate-snippets v0.9.1 [INFO] [stderr] Downloaded dot-writer v0.1.3 [INFO] [stderr] Downloaded regex v1.8.3 [INFO] [stderr] Downloaded serde v1.0.163 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6b02cfab523cc8c5753feb7c904e927f49d8dfd782145b8a44eaa17b71fd02e8 [INFO] running `Command { std: "docker" "start" "-a" "6b02cfab523cc8c5753feb7c904e927f49d8dfd782145b8a44eaa17b71fd02e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6b02cfab523cc8c5753feb7c904e927f49d8dfd782145b8a44eaa17b71fd02e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b02cfab523cc8c5753feb7c904e927f49d8dfd782145b8a44eaa17b71fd02e8", kill_on_drop: false }` [INFO] [stdout] 6b02cfab523cc8c5753feb7c904e927f49d8dfd782145b8a44eaa17b71fd02e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f38aedf91524958bb017a6199eafdc0e4376955f10dd0e80cabf24f09458cb40 [INFO] running `Command { std: "docker" "start" "-a" "f38aedf91524958bb017a6199eafdc0e4376955f10dd0e80cabf24f09458cb40", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.144 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling log v0.4.18 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking regex-syntax v0.7.2 [INFO] [stderr] Compiling time-core v0.1.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Checking yansi-term v0.1.2 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Compiling time-macros v0.2.9 [INFO] [stderr] Checking itertools v0.12.0 [INFO] [stderr] Checking annotate-snippets v0.9.1 [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Checking typed-arena v2.0.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking num_threads v0.1.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking assert_matches v1.5.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking filetime v0.2.21 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking regex v1.8.3 [INFO] [stderr] Checking time v0.3.21 [INFO] [stderr] Checking metamath-rs v0.3.6 (/opt/rustwide/workdir/metamath-rs) [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> metamath-rs/src/formula.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> metamath-rs/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | unused, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> metamath-rs/src/line_cache.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> metamath-rs/src/proof.rs:12:21 [INFO] [stdout] | [INFO] [stdout] 12 | use std::cmp::{max, Ord, Ordering, PartialOrd}; [INFO] [stdout] | ^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `PartialOrd` is imported redundantly [INFO] [stdout] --> metamath-rs/src/proof.rs:12:36 [INFO] [stdout] | [INFO] [stdout] 12 | use std::cmp::{max, Ord, Ordering, PartialOrd}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `PartialOrd` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> metamath-rs/src/formula.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> metamath-rs/src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | unused, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> metamath-rs/src/line_cache.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> metamath-rs/src/proof.rs:12:21 [INFO] [stdout] | [INFO] [stdout] 12 | use std::cmp::{max, Ord, Ordering, PartialOrd}; [INFO] [stdout] | ^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `PartialOrd` is imported redundantly [INFO] [stdout] --> metamath-rs/src/proof.rs:12:36 [INFO] [stdout] | [INFO] [stdout] 12 | use std::cmp::{max, Ord, Ordering, PartialOrd}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `PartialOrd` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking simple_logger v1.16.0 [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking metamath-knife v0.3.6 (/opt/rustwide/workdir/metamath-knife) [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [optimized + debuginfo] target(s) in 8.94s [INFO] running `Command { std: "docker" "inspect" "f38aedf91524958bb017a6199eafdc0e4376955f10dd0e80cabf24f09458cb40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f38aedf91524958bb017a6199eafdc0e4376955f10dd0e80cabf24f09458cb40", kill_on_drop: false }` [INFO] [stdout] f38aedf91524958bb017a6199eafdc0e4376955f10dd0e80cabf24f09458cb40