[INFO] fetching crate aljabr 0.1.0...
[INFO] testing aljabr-0.1.0 against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] extracting crate aljabr 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate aljabr 0.1.0
[INFO] finished tweaking crates.io crate aljabr 0.1.0
[INFO] tweaked toml for crates.io crate aljabr 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate aljabr 0.1.0 on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate aljabr 0.1.0 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ac7ed53ebddbc7c2c8abd67e4b2324d344eedfb6d1cc037bc8292942faad863
[INFO] running `Command { std: "docker" "start" "-a" "5ac7ed53ebddbc7c2c8abd67e4b2324d344eedfb6d1cc037bc8292942faad863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ac7ed53ebddbc7c2c8abd67e4b2324d344eedfb6d1cc037bc8292942faad863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac7ed53ebddbc7c2c8abd67e4b2324d344eedfb6d1cc037bc8292942faad863", kill_on_drop: false }`
[INFO] [stdout] 5ac7ed53ebddbc7c2c8abd67e4b2324d344eedfb6d1cc037bc8292942faad863
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11af7ba47e167789d71d04c65f2a490a9cafea8d388aedd239cd9998ad985fb0
[INFO] running `Command { std: "docker" "start" "-a" "11af7ba47e167789d71d04c65f2a490a9cafea8d388aedd239cd9998ad985fb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling aljabr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/poly.rs:240:28
[INFO] [stdout]     |
[INFO] [stdout] 240 |   fn add_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `box_vec_non_null` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_vec_non_null)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "11af7ba47e167789d71d04c65f2a490a9cafea8d388aedd239cd9998ad985fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11af7ba47e167789d71d04c65f2a490a9cafea8d388aedd239cd9998ad985fb0", kill_on_drop: false }`
[INFO] [stdout] 11af7ba47e167789d71d04c65f2a490a9cafea8d388aedd239cd9998ad985fb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7929f575adf98bde2faed4976d3e371b3f3e2ecddc7bd10eb1a84f3d8fb642fb
[INFO] running `Command { std: "docker" "start" "-a" "7929f575adf98bde2faed4976d3e371b3f3e2ecddc7bd10eb1a84f3d8fb642fb", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/poly.rs:240:28
[INFO] [stdout]     |
[INFO] [stdout] 240 |   fn add_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `box_vec_non_null` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_vec_non_null)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aljabr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/poly.rs:240:28
[INFO] [stdout]     |
[INFO] [stdout] 240 |   fn add_assign(&mut self, rhs: Self) {
[INFO] [stdout]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `box_vec_non_null` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_vec_non_null)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "7929f575adf98bde2faed4976d3e371b3f3e2ecddc7bd10eb1a84f3d8fb642fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7929f575adf98bde2faed4976d3e371b3f3e2ecddc7bd10eb1a84f3d8fb642fb", kill_on_drop: false }`
[INFO] [stdout] 7929f575adf98bde2faed4976d3e371b3f3e2ecddc7bd10eb1a84f3d8fb642fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f219229ba2b8a8a4dadd39471e9437d4ceaaee3776b173c8d3635bb5a0bbc61
[INFO] running `Command { std: "docker" "start" "-a" "9f219229ba2b8a8a4dadd39471e9437d4ceaaee3776b173c8d3635bb5a0bbc61", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `rhs`
[INFO] [stderr]    --> src/poly.rs:240:28
[INFO] [stderr]     |
[INFO] [stderr] 240 |   fn add_assign(&mut self, rhs: Self) {
[INFO] [stderr]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: feature `box_vec_non_null` is declared but not used
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(box_vec_non_null)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `aljabr` (lib) generated 2 warnings (run `cargo fix --lib -p aljabr` to apply 1 suggestion)
[INFO] [stderr] warning: `aljabr` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aljabr-dee21f811f70dd26)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test poly::tests::cubic ... ok
[INFO] [stdout] test poly::tests::binomial ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test poly::tests::constant ... ok
[INFO] [stdout] test poly::tests::equality ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests aljabr
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/poly.rs - poly::Poly<R>::zero (line 187) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/poly.rs - poly::Poly<R>::zero (line 187) stdout ----
[INFO] [stdout] error[E0599]: no method named `is_zero` found for reference `&i32` in the current scope
[INFO] [stdout]    --> src/poly.rs:196:26
[INFO] [stdout]     |
[INFO] [stdout] 196 | assert!(p.leading_coef().is_zero());
[INFO] [stdout]     |         -                ^^^^^^^ method not found in `&i32`
[INFO] [stdout]     |         |
[INFO] [stdout]     |         method `is_zero` is available on `&Poly<i32>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Zero` which provides `is_zero` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 186 + use crate::aljabr::structs::group_like::add::Zero;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/poly.rs - poly::Poly<R>::zero (line 187)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.19s; merged doctests compilation took 0.09s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9f219229ba2b8a8a4dadd39471e9437d4ceaaee3776b173c8d3635bb5a0bbc61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f219229ba2b8a8a4dadd39471e9437d4ceaaee3776b173c8d3635bb5a0bbc61", kill_on_drop: false }`
[INFO] [stdout] 9f219229ba2b8a8a4dadd39471e9437d4ceaaee3776b173c8d3635bb5a0bbc61
