[INFO] cloning repository https://github.com/supersurviveur/formalith
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/supersurviveur/formalith" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsupersurviveur%2Fformalith", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsupersurviveur%2Fformalith'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c557cdc368f142ce8ff464690a0377d2eae41f4b
[INFO] checking supersurviveur/formalith against try#fc545c6b951a304df08b327c158f92678582f435 for pr-140557-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsupersurviveur%2Fformalith" "/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/supersurviveur/formalith on toolchain fc545c6b951a304df08b327c158f92678582f435
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/supersurviveur/formalith
[INFO] finished tweaking git repo https://github.com/supersurviveur/formalith
[INFO] tweaked toml for git repo https://github.com/supersurviveur/formalith written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/supersurviveur/formalith 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" "+fc545c6b951a304df08b327c158f92678582f435" "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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b622415f16dc301fd5c30a474a6f5d7ea41d918ddf32694f09f4469e8691e85
[INFO] running `Command { std: "docker" "start" "-a" "7b622415f16dc301fd5c30a474a6f5d7ea41d918ddf32694f09f4469e8691e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b622415f16dc301fd5c30a474a6f5d7ea41d918ddf32694f09f4469e8691e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b622415f16dc301fd5c30a474a6f5d7ea41d918ddf32694f09f4469e8691e85", kill_on_drop: false }`
[INFO] [stdout] 7b622415f16dc301fd5c30a474a6f5d7ea41d918ddf32694f09f4469e8691e85
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fc545c6b951a304df08b327c158f92678582f435" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3984fdf1cd37f2a8ec91723a6243db33d994ecdb58fa2cfaf6e40bfeed2638e2
[INFO] running `Command { std: "docker" "start" "-a" "3984fdf1cd37f2a8ec91723a6243db33d994ecdb58fa2cfaf6e40bfeed2638e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling malachite-nz v0.5.1
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling owo-colors v4.2.0
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]     Checking supports-color v3.0.2
[INFO] [stderr]     Checking append-only-vec v0.1.7
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking malachite-base v0.5.1
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]     Checking malachite-q v0.5.1
[INFO] [stderr]     Checking malachite v0.5.1
[INFO] [stderr]     Checking formalith v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/field/commons.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         elem: &Self::Element,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/field/commons.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         options: &crate::printer::PrintOptions,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/field/commons.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         elem: &Self::Element,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `options`
[INFO] [stdout]   --> src/field/commons.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         options: &crate::printer::PrintOptions,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_options`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/field/commons.rs:476:19
[INFO] [stdout]     |
[INFO] [stdout] 476 |     fn mul(&self, a: &Self::Element, b: &Self::Element) -> Self::Element {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/field/commons.rs:476:38
[INFO] [stdout]     |
[INFO] [stdout] 476 |     fn mul(&self, a: &Self::Element, b: &Self::Element) -> Self::Element {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/field/commons.rs:480:23
[INFO] [stdout]     |
[INFO] [stdout] 480 |     fn try_inv(&self, a: &Self::Element) -> Option<Self::Element> {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/field/commons.rs:476:19
[INFO] [stdout]     |
[INFO] [stdout] 476 |     fn mul(&self, a: &Self::Element, b: &Self::Element) -> Self::Element {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/field/commons.rs:476:38
[INFO] [stdout]     |
[INFO] [stdout] 476 |     fn mul(&self, a: &Self::Element, b: &Self::Element) -> Self::Element {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/field/commons.rs:480:23
[INFO] [stdout]     |
[INFO] [stdout] 480 |     fn try_inv(&self, a: &Self::Element) -> Option<Self::Element> {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![warn(rustdoc::broken_intra_doc_links)]
[INFO] [stdout] 2 | | #![warn(missing_docs)]
[INFO] [stdout] 3 | |
[INFO] [stdout] 4 | | pub mod context;
[INFO] [stdout] ... |
[INFO] [stdout] 8 | | pub mod term;
[INFO] [stdout] 9 | | pub mod printer;
[INFO] [stdout]   | |________________^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![warn(rustdoc::broken_intra_doc_links)]
[INFO] [stdout] 2 | | #![warn(missing_docs)]
[INFO] [stdout] 3 | |
[INFO] [stdout] 4 | | pub mod context;
[INFO] [stdout] ... |
[INFO] [stdout] 8 | | pub mod term;
[INFO] [stdout] 9 | | pub mod printer;
[INFO] [stdout]   | |________________^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.24s
[INFO] running `Command { std: "docker" "inspect" "3984fdf1cd37f2a8ec91723a6243db33d994ecdb58fa2cfaf6e40bfeed2638e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3984fdf1cd37f2a8ec91723a6243db33d994ecdb58fa2cfaf6e40bfeed2638e2", kill_on_drop: false }`
[INFO] [stdout] 3984fdf1cd37f2a8ec91723a6243db33d994ecdb58fa2cfaf6e40bfeed2638e2