[INFO] fetching crate ironcladserver 0.1.0...
[INFO] checking ironcladserver-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ironcladserver 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ironcladserver 0.1.0 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 crates.io crate ironcladserver 0.1.0
[INFO] finished tweaking crates.io crate ironcladserver 0.1.0
[INFO] tweaked toml for crates.io crate ironcladserver 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ironcladserver 0.1.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-attributes v1.1.2
[INFO] [stderr]   Downloaded value-bag v1.4.1
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded pin-project-lite v0.2.10
[INFO] [stderr]   Downloaded quote v1.0.31
[INFO] [stderr]   Downloaded rustix v0.37.23
[INFO] [stderr]   Downloaded syn v2.0.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e0fe37756ad4efd62c6cbee1694dd41d460382128a71a4917c31d89ac79779ee
[INFO] running `Command { std: "docker" "start" "-a" "e0fe37756ad4efd62c6cbee1694dd41d460382128a71a4917c31d89ac79779ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0fe37756ad4efd62c6cbee1694dd41d460382128a71a4917c31d89ac79779ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0fe37756ad4efd62c6cbee1694dd41d460382128a71a4917c31d89ac79779ee", kill_on_drop: false }`
[INFO] [stdout] e0fe37756ad4efd62c6cbee1694dd41d460382128a71a4917c31d89ac79779ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e129b2f301d002554c857d097dcbe4c6024e907993c9e3d4ed3b1c516ea13ee4
[INFO] running `Command { std: "docker" "start" "-a" "e129b2f301d002554c857d097dcbe4c6024e907993c9e3d4ed3b1c516ea13ee4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking value-bag v1.4.1
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking concurrent-queue v2.2.0
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking async-executor v1.5.1
[INFO] [stderr]     Checking blocking v1.3.1
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking polling v2.8.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking async-io v1.13.0
[INFO] [stderr]     Checking async-global-executor v2.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking ironcladserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Config` is imported redundantly
[INFO] [stdout]    --> src/cli.rs:151:22
[INFO] [stdout]     |
[INFO] [stdout] 150 |     use super::*;
[INFO] [stdout]     |         -------- the item `Config` is already imported here
[INFO] [stdout] 151 |     use crate::cli::{Config, ServerConfigArguments};
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ServerConfigArguments` is imported redundantly
[INFO] [stdout]    --> src/cli.rs:151:30
[INFO] [stdout]     |
[INFO] [stdout] 150 |     use super::*;
[INFO] [stdout]     |         -------- the item `ServerConfigArguments` is already imported here
[INFO] [stdout] 151 |     use crate::cli::{Config, ServerConfigArguments};
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Config` is imported redundantly
[INFO] [stdout]    --> src/cli.rs:151:22
[INFO] [stdout]     |
[INFO] [stdout] 150 |     use super::*;
[INFO] [stdout]     |         -------- the item `Config` is already imported here
[INFO] [stdout] 151 |     use crate::cli::{Config, ServerConfigArguments};
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ServerConfigArguments` is imported redundantly
[INFO] [stdout]    --> src/cli.rs:151:30
[INFO] [stdout]     |
[INFO] [stdout] 150 |     use super::*;
[INFO] [stdout]     |         -------- the item `ServerConfigArguments` is already imported here
[INFO] [stdout] 151 |     use crate::cli::{Config, ServerConfigArguments};
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.32s
[INFO] running `Command { std: "docker" "inspect" "e129b2f301d002554c857d097dcbe4c6024e907993c9e3d4ed3b1c516ea13ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e129b2f301d002554c857d097dcbe4c6024e907993c9e3d4ed3b1c516ea13ee4", kill_on_drop: false }`
[INFO] [stdout] e129b2f301d002554c857d097dcbe4c6024e907993c9e3d4ed3b1c516ea13ee4