[INFO] fetching crate ritenn 0.1.0...
[INFO] building ritenn-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate ritenn 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ritenn 0.1.0
[INFO] finished tweaking crates.io crate ritenn 0.1.0
[INFO] tweaked toml for crates.io crate ritenn 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ritenn 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ritenn 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d5ee021ec2e5a4ad436fc0548cc287171f60e14be032429321ddc59163729e4
[INFO] running `Command { std: "docker" "start" "-a" "6d5ee021ec2e5a4ad436fc0548cc287171f60e14be032429321ddc59163729e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d5ee021ec2e5a4ad436fc0548cc287171f60e14be032429321ddc59163729e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d5ee021ec2e5a4ad436fc0548cc287171f60e14be032429321ddc59163729e4", kill_on_drop: false }`
[INFO] [stdout] 6d5ee021ec2e5a4ad436fc0548cc287171f60e14be032429321ddc59163729e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03bc9a3b5effe37d9c7625507974aadacc3ae1e0f31e5ea9cde812621c42126b
[INFO] running `Command { std: "docker" "start" "-a" "03bc9a3b5effe37d9c7625507974aadacc3ae1e0f31e5ea9cde812621c42126b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rand_distr v0.4.0
[INFO] [stderr]    Compiling ritenn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:324:77
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn train<'b>(&'b mut self, examples: &'b [(Vec<f64>, Vec<f64>)]) -> Trainer {
[INFO] [stdout]     |                       --                      --                            ^^^^^^^
[INFO] [stdout]     |                       |                       |                             |
[INFO] [stdout]     |                       |                       |                             the same lifetime is hidden here
[INFO] [stdout]     |                       |                       the lifetime is named here    the same lifetime is hidden here
[INFO] [stdout]     |                       the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn train<'b>(&'b mut self, examples: &'b [(Vec<f64>, Vec<f64>)]) -> Trainer<'b> {
[INFO] [stdout]     |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "03bc9a3b5effe37d9c7625507974aadacc3ae1e0f31e5ea9cde812621c42126b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03bc9a3b5effe37d9c7625507974aadacc3ae1e0f31e5ea9cde812621c42126b", kill_on_drop: false }`
[INFO] [stdout] 03bc9a3b5effe37d9c7625507974aadacc3ae1e0f31e5ea9cde812621c42126b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ca2db341e6af400847e5c10894fecde1e628a64f3f011678dc93ea1d92c1e9f
[INFO] running `Command { std: "docker" "start" "-a" "8ca2db341e6af400847e5c10894fecde1e628a64f3f011678dc93ea1d92c1e9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ritenn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:324:77
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn train<'b>(&'b mut self, examples: &'b [(Vec<f64>, Vec<f64>)]) -> Trainer {
[INFO] [stdout]     |                       --                      --                            ^^^^^^^
[INFO] [stdout]     |                       |                       |                             |
[INFO] [stdout]     |                       |                       |                             the same lifetime is hidden here
[INFO] [stdout]     |                       |                       the lifetime is named here    the same lifetime is hidden here
[INFO] [stdout]     |                       the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn train<'b>(&'b mut self, examples: &'b [(Vec<f64>, Vec<f64>)]) -> Trainer<'b> {
[INFO] [stdout]     |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:324:77
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn train<'b>(&'b mut self, examples: &'b [(Vec<f64>, Vec<f64>)]) -> Trainer {
[INFO] [stdout]     |                       --                      --                            ^^^^^^^
[INFO] [stdout]     |                       |                       |                             |
[INFO] [stdout]     |                       |                       |                             the same lifetime is hidden here
[INFO] [stdout]     |                       |                       the lifetime is named here    the same lifetime is hidden here
[INFO] [stdout]     |                       the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn train<'b>(&'b mut self, examples: &'b [(Vec<f64>, Vec<f64>)]) -> Trainer<'b> {
[INFO] [stdout]     |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "8ca2db341e6af400847e5c10894fecde1e628a64f3f011678dc93ea1d92c1e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca2db341e6af400847e5c10894fecde1e628a64f3f011678dc93ea1d92c1e9f", kill_on_drop: false }`
[INFO] [stdout] 8ca2db341e6af400847e5c10894fecde1e628a64f3f011678dc93ea1d92c1e9f
