[INFO] cloning repository https://github.com/michaelberndbeier/SecretSantaRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelberndbeier/SecretSantaRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3f52c48c852c27f70bcce8ad564e0215d853ceb
[INFO] building michaelberndbeier/SecretSantaRust against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelberndbeier/SecretSantaRust on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michaelberndbeier/SecretSantaRust
[INFO] finished tweaking git repo https://github.com/michaelberndbeier/SecretSantaRust
[INFO] tweaked toml for git repo https://github.com/michaelberndbeier/SecretSantaRust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelberndbeier/SecretSantaRust 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d5653c3872273b9f98309e25abc9fbeebdfe2f40bbb5b4196d38d0e55ad41ab
[INFO] running `Command { std: "docker" "start" "-a" "7d5653c3872273b9f98309e25abc9fbeebdfe2f40bbb5b4196d38d0e55ad41ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d5653c3872273b9f98309e25abc9fbeebdfe2f40bbb5b4196d38d0e55ad41ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d5653c3872273b9f98309e25abc9fbeebdfe2f40bbb5b4196d38d0e55ad41ab", kill_on_drop: false }`
[INFO] [stdout] 7d5653c3872273b9f98309e25abc9fbeebdfe2f40bbb5b4196d38d0e55ad41ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fdb5fbd69093627b9ebe4575b2f91c10c09f55b5459c328239a4b63e49bc9aa
[INFO] running `Command { std: "docker" "start" "-a" "0fdb5fbd69093627b9ebe4575b2f91c10c09f55b5459c328239a4b63e49bc9aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling SecretSantaRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `pairingIndex` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pairingIndex : usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_pairingIndex` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pairingIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pairingIndex : usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `pairing_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numParticipants` should have a snake case name
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let numParticipants = senders.len();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `num_participants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `senderIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut senderIndex: usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `sender_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numParticipants` should have a snake case name
[INFO] [stdout]   --> src/main.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn get_offset(numParticipants: usize) -> usize
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `num_participants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `indexSender` should have a snake case name
[INFO] [stdout]   --> src/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn calc_receiver_index(indexSender: usize, numParticipants: usize, offset: usize) -> usize
[INFO] [stdout]    |                        ^^^^^^^^^^^ help: convert the identifier to snake case: `index_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numParticipants` should have a snake case name
[INFO] [stdout]   --> src/main.rs:50:44
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn calc_receiver_index(indexSender: usize, numParticipants: usize, offset: usize) -> usize
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `num_participants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `virtualIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let virtualIndex = indexSender + offset;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `virtual_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `adjustedIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let adjustedIndex = virtualIndex % numParticipants;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `adjusted_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.08s
[INFO] running `Command { std: "docker" "inspect" "0fdb5fbd69093627b9ebe4575b2f91c10c09f55b5459c328239a4b63e49bc9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fdb5fbd69093627b9ebe4575b2f91c10c09f55b5459c328239a4b63e49bc9aa", kill_on_drop: false }`
[INFO] [stdout] 0fdb5fbd69093627b9ebe4575b2f91c10c09f55b5459c328239a4b63e49bc9aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88b0cf4aa89a22545fc6668853441bdf4ec29afb5e518e6f85b9b74b20aadfa0
[INFO] running `Command { std: "docker" "start" "-a" "88b0cf4aa89a22545fc6668853441bdf4ec29afb5e518e6f85b9b74b20aadfa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling SecretSantaRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `pairingIndex` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pairingIndex : usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_pairingIndex` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pairingIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pairingIndex : usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `pairing_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numParticipants` should have a snake case name
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let numParticipants = senders.len();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `num_participants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `senderIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut senderIndex: usize = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `sender_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numParticipants` should have a snake case name
[INFO] [stdout]   --> src/main.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn get_offset(numParticipants: usize) -> usize
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `num_participants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `indexSender` should have a snake case name
[INFO] [stdout]   --> src/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn calc_receiver_index(indexSender: usize, numParticipants: usize, offset: usize) -> usize
[INFO] [stdout]    |                        ^^^^^^^^^^^ help: convert the identifier to snake case: `index_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numParticipants` should have a snake case name
[INFO] [stdout]   --> src/main.rs:50:44
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn calc_receiver_index(indexSender: usize, numParticipants: usize, offset: usize) -> usize
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `num_participants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `virtualIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let virtualIndex = indexSender + offset;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `virtual_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `adjustedIndex` should have a snake case name
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let adjustedIndex = virtualIndex % numParticipants;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `adjusted_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "88b0cf4aa89a22545fc6668853441bdf4ec29afb5e518e6f85b9b74b20aadfa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b0cf4aa89a22545fc6668853441bdf4ec29afb5e518e6f85b9b74b20aadfa0", kill_on_drop: false }`
[INFO] [stdout] 88b0cf4aa89a22545fc6668853441bdf4ec29afb5e518e6f85b9b74b20aadfa0