[INFO] cloning repository https://github.com/gakonst/spammers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gakonst/spammers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgakonst%2Fspammers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgakonst%2Fspammers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08353baac8088aed51d9fed21b201328ac1a48de
[INFO] checking gakonst/spammers against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgakonst%2Fspammers" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gakonst/spammers
[INFO] finished tweaking git repo https://github.com/gakonst/spammers
[INFO] tweaked toml for git repo https://github.com/gakonst/spammers written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gakonst/spammers on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gakonst/spammers 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea032eddb379e712b9c943657c5c2dee90ad865c9d3bcdffc2d37add77da5eaf
[INFO] running `Command { std: "docker" "start" "-a" "ea032eddb379e712b9c943657c5c2dee90ad865c9d3bcdffc2d37add77da5eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea032eddb379e712b9c943657c5c2dee90ad865c9d3bcdffc2d37add77da5eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea032eddb379e712b9c943657c5c2dee90ad865c9d3bcdffc2d37add77da5eaf", kill_on_drop: false }`
[INFO] [stdout] ea032eddb379e712b9c943657c5c2dee90ad865c9d3bcdffc2d37add77da5eaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a089f5934a5af31bbbaa904fd004b63e0609646effb729c802dac87854f559a
[INFO] running `Command { std: "docker" "start" "-a" "1a089f5934a5af31bbbaa904fd004b63e0609646effb729c802dac87854f559a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking webpki-roots v0.22.4
[INFO] [stderr]     Checking ripemd v0.1.2
[INFO] [stderr]    Compiling thiserror v1.0.34
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling proc-macro-crate v1.2.1
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.1.3
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking impl-serde v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.85
[INFO] [stderr]     Checking rust_decimal v1.26.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking coins-core v0.7.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking parity-scale-codec v3.2.1
[INFO] [stderr]     Checking rlp v0.5.1
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking coins-bip32 v0.7.0
[INFO] [stderr]     Checking impl-rlp v0.3.0
[INFO] [stderr]     Checking ethbloom v0.12.1
[INFO] [stderr]     Checking serde-aux v3.1.0
[INFO] [stderr]     Checking eth-keystore v0.4.2
[INFO] [stderr]     Checking impl-codec v0.6.0
[INFO] [stderr]     Checking coins-bip39 v0.7.0
[INFO] [stderr]     Checking primitive-types v0.11.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking ethereum-types v0.13.1
[INFO] [stderr]     Checking fastrlp v0.1.3
[INFO] [stderr]     Checking ethabi v17.2.0
[INFO] [stderr]     Checking ethers-core v0.17.0
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking futures-locks v0.7.0
[INFO] [stderr]     Checking h2 v0.3.14
[INFO] [stderr]     Checking ethers-signers v0.17.0
[INFO] [stderr]     Checking ethers-addressbook v0.17.0
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking hyper-rustls v0.23.0
[INFO] [stderr]     Checking reqwest v0.11.12
[INFO] [stderr]     Checking ethers-providers v0.17.0
[INFO] [stderr]     Checking ethers-etherscan v0.17.0
[INFO] [stderr]     Checking ethers-contract v0.17.0
[INFO] [stderr]     Checking ethers-middleware v0.17.0
[INFO] [stderr]     Checking ethers v0.17.0
[INFO] [stderr]     Checking spameth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude::IteratorRandom`
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     rand::{prelude::IteratorRandom, thread_rng, Rng},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::seq::SliceRandom; // 0.7.2
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::IteratorRandom`
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     rand::{prelude::IteratorRandom, thread_rng, Rng},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::seq::SliceRandom; // 0.7.2
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.38s
[INFO] running `Command { std: "docker" "inspect" "1a089f5934a5af31bbbaa904fd004b63e0609646effb729c802dac87854f559a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a089f5934a5af31bbbaa904fd004b63e0609646effb729c802dac87854f559a", kill_on_drop: false }`
[INFO] [stdout] 1a089f5934a5af31bbbaa904fd004b63e0609646effb729c802dac87854f559a