[INFO] cloning repository https://github.com/leoflalv/fly-io-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leoflalv/fly-io-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleoflalv%2Ffly-io-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleoflalv%2Ffly-io-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82acc6d955bce6d4524903851c080008ab08e34e
[INFO] checking leoflalv/fly-io-challenge against try#121a90d34197f711021eeb158e7f4184b8be8ceb for pr-140313
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleoflalv%2Ffly-io-challenge" "/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/leoflalv/fly-io-challenge on toolchain 121a90d34197f711021eeb158e7f4184b8be8ceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leoflalv/fly-io-challenge
[INFO] finished tweaking git repo https://github.com/leoflalv/fly-io-challenge
[INFO] tweaked toml for git repo https://github.com/leoflalv/fly-io-challenge written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/leoflalv/fly-io-challenge 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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0492bce2c59974ce64a988270c92a10822d230c07ef4caf03732e909e6e21348
[INFO] running `Command { std: "docker" "start" "-a" "0492bce2c59974ce64a988270c92a10822d230c07ef4caf03732e909e6e21348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0492bce2c59974ce64a988270c92a10822d230c07ef4caf03732e909e6e21348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0492bce2c59974ce64a988270c92a10822d230c07ef4caf03732e909e6e21348", kill_on_drop: false }`
[INFO] [stdout] 0492bce2c59974ce64a988270c92a10822d230c07ef4caf03732e909e6e21348
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0d04a2bdafcbf582e5bdc4c9e7fd529ecabcc59b9fbb8a25c26008e4d95cf3b
[INFO] running `Command { std: "docker" "start" "-a" "f0d04a2bdafcbf582e5bdc4c9e7fd529ecabcc59b9fbb8a25c26008e4d95cf3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling serde_json v1.0.127
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking simple-error v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking fly-io-challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling async-trait v0.1.81
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ulid v1.1.3
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-context v0.1.3
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking maelstrom-node v0.1.6
[INFO] [stderr]     Checking efficient-broadcast v0.1.0 (/opt/rustwide/workdir/efficient-broadcast)
[INFO] [stderr]     Checking fault-tolerant-broadcast v0.1.0 (/opt/rustwide/workdir/fault-tolerant-broadcast)
[INFO] [stderr]     Checking echo-challenge v0.1.0 (/opt/rustwide/workdir/echo-challenge)
[INFO] [stderr]     Checking single-node-broadcast-challenge v0.1.0 (/opt/rustwide/workdir/single-node-broadcast-challenge)
[INFO] [stderr]     Checking unique-id-generator-challenge v0.1.0 (/opt/rustwide/workdir/unique-id-generator-challenge)
[INFO] [stderr]     Checking multi-node-broadcast-challenge v0.1.0 (/opt/rustwide/workdir/multi-node-broadcast-challenge)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.40s
[INFO] running `Command { std: "docker" "inspect" "f0d04a2bdafcbf582e5bdc4c9e7fd529ecabcc59b9fbb8a25c26008e4d95cf3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0d04a2bdafcbf582e5bdc4c9e7fd529ecabcc59b9fbb8a25c26008e4d95cf3b", kill_on_drop: false }`
[INFO] [stdout] f0d04a2bdafcbf582e5bdc4c9e7fd529ecabcc59b9fbb8a25c26008e4d95cf3b