[INFO] cloning repository https://github.com/joodicator/untitled
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joodicator/untitled" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoodicator%2Funtitled", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoodicator%2Funtitled'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa72420b779f6d5dc9c3bb7a7367957ec18070d5
[INFO] checking joodicator/untitled against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoodicator%2Funtitled" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joodicator/untitled 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/joodicator/untitled
[INFO] finished tweaking git repo https://github.com/joodicator/untitled
[INFO] tweaked toml for git repo https://github.com/joodicator/untitled written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/joodicator/untitled 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]  Downloading crates ...
[INFO] [stderr]   Downloaded structmeta-derive v0.1.3
[INFO] [stderr]   Downloaded structmeta v0.1.3
[INFO] [stderr]   Downloaded parse-display v0.5.1
[INFO] [stderr]   Downloaded parse-display-derive v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] db829f8d35404dee857dc2c62923d7a6e1f7564769fd446010d3f546adbbf6f7
[INFO] running `Command { std: "docker" "start" "-a" "db829f8d35404dee857dc2c62923d7a6e1f7564769fd446010d3f546adbbf6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db829f8d35404dee857dc2c62923d7a6e1f7564769fd446010d3f546adbbf6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db829f8d35404dee857dc2c62923d7a6e1f7564769fd446010d3f546adbbf6f7", kill_on_drop: false }`
[INFO] [stdout] db829f8d35404dee857dc2c62923d7a6e1f7564769fd446010d3f546adbbf6f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b39362386f0878ec85c6959af27d12fbe8b5b7b653a47e8aec39255d312a782e
[INFO] running `Command { std: "docker" "start" "-a" "b39362386f0878ec85c6959af27d12fbe8b5b7b653a47e8aec39255d312a782e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]    Compiling structmeta-derive v0.1.3
[INFO] [stderr]    Compiling structmeta v0.1.3
[INFO] [stderr]    Compiling parse-display-derive v0.5.1
[INFO] [stderr]    Compiling parse-display v0.5.1
[INFO] [stderr]     Checking nxs_interface_macros v0.1.0 (/opt/rustwide/workdir/nxs_interface_macros)
[INFO] [stderr]     Checking nxs_interface v0.1.0 (/opt/rustwide/workdir/nxs_interface)
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> nxs_interface/src/util/dyn_cast.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::{Sync, Send};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> nxs_interface/src/util/dyn_cast.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::{Sync, Send};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> nxs_interface/src/util/dyn_cast.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::{Sync, Send};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> nxs_interface/src/util/dyn_cast.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::marker::{Sync, Send};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nxs_std_text v0.1.0 (/opt/rustwide/workdir/nxs_std_text)
[INFO] [stderr]     Checking nxs_std_root v0.1.0 (/opt/rustwide/workdir/nxs_std_root)
[INFO] [stderr]     Checking nxs_std_cmds v0.1.0 (/opt/rustwide/workdir/nxs_std_cmds)
[INFO] [stdout] warning: field `root` is never read
[INFO] [stdout]   --> nxs_std_text/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct StdTextManager {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 10 |     root: &'static dyn RootModule,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `root` and `text` are never read
[INFO] [stdout]   --> nxs_std_cmds/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Commands {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 10 |     root: &'static dyn RootModule,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     text: &'static dyn TextManager,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `root` and `text` are never read
[INFO] [stdout]   --> nxs_std_cmds/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Commands {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 10 |     root: &'static dyn RootModule,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     text: &'static dyn TextManager,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `root` is never read
[INFO] [stdout]   --> nxs_std_text/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct StdTextManager {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 10 |     root: &'static dyn RootModule,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning 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 11.87s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: parse-display-derive v0.5.1, structmeta-derive v0.1.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b39362386f0878ec85c6959af27d12fbe8b5b7b653a47e8aec39255d312a782e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b39362386f0878ec85c6959af27d12fbe8b5b7b653a47e8aec39255d312a782e", kill_on_drop: false }`
[INFO] [stdout] b39362386f0878ec85c6959af27d12fbe8b5b7b653a47e8aec39255d312a782e