[INFO] fetching crate triangular 0.1.1...
[INFO] checking triangular-0.1.1 against try#21cad1f647cfd05a566220f933edd88a53e50bcf for pr-129249-1
[INFO] extracting crate triangular 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate triangular 0.1.1
[INFO] finished tweaking crates.io crate triangular 0.1.1
[INFO] tweaked toml for crates.io crate triangular 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate triangular 0.1.1 on toolchain 21cad1f647cfd05a566220f933edd88a53e50bcf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages to latest compatible versions
[INFO] [stderr]       Adding cgmath v0.17.0 (available: v0.18.0)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10
[INFO] running `Command { std: "docker" "start" "4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling zerocopy v0.8.52
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.8.11
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.12.4
[INFO] [stderr]     Checking triangular v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/lib.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |             self.a.get_index().into(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<usize as Into<usize>::into(val) to avoid triggering this lint
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/lib.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             self.b.get_index().into(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<usize as Into<usize>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/lib.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             self.c.get_index().into()
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: you can instead use the fully-qualified path `<usize as Into<usize>::into(val) to avoid triggering this lint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `triangular` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10", kill_on_drop: false }`
[INFO] [stdout] 4daddd4ee34b600410b305783d1ac78cbbfcaa3910276acecda1806bdf309e10
