[INFO] cloning repository https://github.com/thegatsbylofiexperience/seek_coding_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thegatsbylofiexperience/seek_coding_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthegatsbylofiexperience%2Fseek_coding_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthegatsbylofiexperience%2Fseek_coding_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e400194038d4bf592f1e1883110bf7f9bdb2009
[INFO] checking thegatsbylofiexperience/seek_coding_test against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthegatsbylofiexperience%2Fseek_coding_test" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thegatsbylofiexperience/seek_coding_test 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/thegatsbylofiexperience/seek_coding_test
[INFO] finished tweaking git repo https://github.com/thegatsbylofiexperience/seek_coding_test
[INFO] tweaked toml for git repo https://github.com/thegatsbylofiexperience/seek_coding_test written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thegatsbylofiexperience/seek_coding_test 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 50ed3b1b27bb5b6e92f3461326712d7feb4627ccd3fef5a3fd68c5c0b8c8f84c
[INFO] running `Command { std: "docker" "start" "-a" "50ed3b1b27bb5b6e92f3461326712d7feb4627ccd3fef5a3fd68c5c0b8c8f84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50ed3b1b27bb5b6e92f3461326712d7feb4627ccd3fef5a3fd68c5c0b8c8f84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ed3b1b27bb5b6e92f3461326712d7feb4627ccd3fef5a3fd68c5c0b8c8f84c", kill_on_drop: false }`
[INFO] [stdout] 50ed3b1b27bb5b6e92f3461326712d7feb4627ccd3fef5a3fd68c5c0b8c8f84c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b678e95c31e320180252a9e2bf0f5535f2778e5a8df0fc59b0bbbacac23d7d22
[INFO] running `Command { std: "docker" "start" "-a" "b678e95c31e320180252a9e2bf0f5535f2778e5a8df0fc59b0bbbacac23d7d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking seek_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use csv;
[INFO] [stdout]   |     ^^^ the item `csv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use csv;
[INFO] [stdout]   |     ^^^ the item `csv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.88s
[INFO] running `Command { std: "docker" "inspect" "b678e95c31e320180252a9e2bf0f5535f2778e5a8df0fc59b0bbbacac23d7d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b678e95c31e320180252a9e2bf0f5535f2778e5a8df0fc59b0bbbacac23d7d22", kill_on_drop: false }`
[INFO] [stdout] b678e95c31e320180252a9e2bf0f5535f2778e5a8df0fc59b0bbbacac23d7d22