[INFO] cloning repository https://github.com/leokhachatorians/river
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leokhachatorians/river" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokhachatorians%2Friver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokhachatorians%2Friver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09a45c2f2b2ef3ae648700ee87b76f33c17c7774
[INFO] checking leokhachatorians/river against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokhachatorians%2Friver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leokhachatorians/river 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/leokhachatorians/river
[INFO] finished tweaking git repo https://github.com/leokhachatorians/river
[INFO] tweaked toml for git repo https://github.com/leokhachatorians/river written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leokhachatorians/river 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages
[INFO] [stderr]       Adding crossbeam-deque v0.8.5
[INFO] [stderr]       Adding crossbeam-epoch v0.9.18
[INFO] [stderr]       Adding crossbeam-utils v0.8.19
[INFO] [stderr]       Adding either v1.10.0
[INFO] [stderr]       Adding rayon v1.10.0
[INFO] [stderr]       Adding rayon-core v1.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8cf058a35bb0a6ffbb3d7ec19464a32a92d36d70ec8c038efa8751a3f4d537e7
[INFO] running `Command { std: "docker" "start" "-a" "8cf058a35bb0a6ffbb3d7ec19464a32a92d36d70ec8c038efa8751a3f4d537e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cf058a35bb0a6ffbb3d7ec19464a32a92d36d70ec8c038efa8751a3f4d537e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf058a35bb0a6ffbb3d7ec19464a32a92d36d70ec8c038efa8751a3f4d537e7", kill_on_drop: false }`
[INFO] [stdout] 8cf058a35bb0a6ffbb3d7ec19464a32a92d36d70ec8c038efa8751a3f4d537e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 76d8164b6cf9ae3f5ad0e30d0857072733919ae2d7b258949542004b7efbdbc2
[INFO] running `Command { std: "docker" "start" "-a" "76d8164b6cf9ae3f5ad0e30d0857072733919ae2d7b258949542004b7efbdbc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking river v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec3.rs:368:13
[INFO] [stdout]     |
[INFO] [stdout] 368 |         let mut test_vec = Vec3::new(1.0, 2.0, 3.0);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec3.rs:377:13
[INFO] [stdout]     |
[INFO] [stdout] 377 |         let mut test_vec = Vec3::new(1.0, 2.0, 3.0);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `Command { std: "docker" "inspect" "76d8164b6cf9ae3f5ad0e30d0857072733919ae2d7b258949542004b7efbdbc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d8164b6cf9ae3f5ad0e30d0857072733919ae2d7b258949542004b7efbdbc2", kill_on_drop: false }`
[INFO] [stdout] 76d8164b6cf9ae3f5ad0e30d0857072733919ae2d7b258949542004b7efbdbc2
[INFO] checking leokhachatorians/river against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokhachatorians%2Friver" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leokhachatorians/river on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leokhachatorians/river
[INFO] finished tweaking git repo https://github.com/leokhachatorians/river
[INFO] tweaked toml for git repo https://github.com/leokhachatorians/river written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/leokhachatorians/river 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dd77f16242a2ebd56587e9a0039b5ca3b2cf9b0d3afdeb9a2f8343a1c84aedc
[INFO] running `Command { std: "docker" "start" "-a" "4dd77f16242a2ebd56587e9a0039b5ca3b2cf9b0d3afdeb9a2f8343a1c84aedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dd77f16242a2ebd56587e9a0039b5ca3b2cf9b0d3afdeb9a2f8343a1c84aedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dd77f16242a2ebd56587e9a0039b5ca3b2cf9b0d3afdeb9a2f8343a1c84aedc", kill_on_drop: false }`
[INFO] [stdout] 4dd77f16242a2ebd56587e9a0039b5ca3b2cf9b0d3afdeb9a2f8343a1c84aedc
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e842c0047f680734a6a1fb863897b8c99b56d69f8db708c3fe8f4936c11fbf3c
[INFO] running `Command { std: "docker" "start" "-a" "e842c0047f680734a6a1fb863897b8c99b56d69f8db708c3fe8f4936c11fbf3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking river v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec3.rs:368:13
[INFO] [stdout]     |
[INFO] [stdout] 368 |         let mut test_vec = Vec3::new(1.0, 2.0, 3.0);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec3.rs:377:13
[INFO] [stdout]     |
[INFO] [stdout] 377 |         let mut test_vec = Vec3::new(1.0, 2.0, 3.0);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.10s
[INFO] running `Command { std: "docker" "inspect" "e842c0047f680734a6a1fb863897b8c99b56d69f8db708c3fe8f4936c11fbf3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e842c0047f680734a6a1fb863897b8c99b56d69f8db708c3fe8f4936c11fbf3c", kill_on_drop: false }`
[INFO] [stdout] e842c0047f680734a6a1fb863897b8c99b56d69f8db708c3fe8f4936c11fbf3c