[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] checking michaelberndbeier/SecretSantaRust against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelberndbeier/SecretSantaRust on toolchain b32fc44666c052e7cf07ab471bfb6f9ec571902f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "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-tc2/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" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/a98cf9a7ad6f9d426cd05f237571ac3b9d4463eab5e371dda16203056d08883b: no space left on device
[INFO] checking michaelberndbeier/SecretSantaRust against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write file .idea/modules.xml
[INFO] [stderr] error: unable to write file .idea/runConfigurations.xml
[INFO] [stderr] error: unable to write file .idea/vcs.xml
[INFO] [stderr] error: unable to write file Cargo.lock
[INFO] [stderr] error: unable to write file Cargo.toml
[INFO] [stderr] error: unable to write file SecretSantaRust.iml
[INFO] [stderr] fatal: cannot create directory at 'src': No space left on device
[INFO] [stderr] warning: Clone succeeded, but checkout failed.
[INFO] [stderr] You can inspect what was checked out with 'git status'
[INFO] [stderr] and retry with 'git restore --source=HEAD :/'
[INFO] [stderr] 
[INFO] checking michaelberndbeier/SecretSantaRust against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: cannot create directory at '.idea/codeStyles': No space left on device
[INFO] [stderr] warning: Clone succeeded, but checkout failed.
[INFO] [stderr] You can inspect what was checked out with 'git status'
[INFO] [stderr] and retry with 'git restore --source=HEAD :/'
[INFO] [stderr] 
[INFO] checking michaelberndbeier/SecretSantaRust against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelberndbeier%2FSecretSantaRust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelberndbeier/SecretSantaRust on toolchain b32fc44666c052e7cf07ab471bfb6f9ec571902f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "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-tc2/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" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6144cd519fcebf617a11164c7f88a0eb13082d3441eab3a7a0a784238b7b8cf
[INFO] running `Command { std: "docker" "start" "-a" "a6144cd519fcebf617a11164c7f88a0eb13082d3441eab3a7a0a784238b7b8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6144cd519fcebf617a11164c7f88a0eb13082d3441eab3a7a0a784238b7b8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6144cd519fcebf617a11164c7f88a0eb13082d3441eab3a7a0a784238b7b8cf", kill_on_drop: false }`
[INFO] [stdout] a6144cd519fcebf617a11164c7f88a0eb13082d3441eab3a7a0a784238b7b8cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2a9fa719b7639355f00ebd405a436faba583b7a527d93695b0b8a10c4576b11
[INFO] running `Command { std: "docker" "start" "-a" "f2a9fa719b7639355f00ebd405a436faba583b7a527d93695b0b8a10c4576b11", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking 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` 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 `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 `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: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 `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 `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 `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 `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 `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] [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 1.24s
[INFO] running `Command { std: "docker" "inspect" "f2a9fa719b7639355f00ebd405a436faba583b7a527d93695b0b8a10c4576b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a9fa719b7639355f00ebd405a436faba583b7a527d93695b0b8a10c4576b11", kill_on_drop: false }`
[INFO] [stdout] f2a9fa719b7639355f00ebd405a436faba583b7a527d93695b0b8a10c4576b11