[INFO] cloning repository https://github.com/tertestrial/server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tertestrial/server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftertestrial%2Fserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftertestrial%2Fserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8622b85fede4122e67100c400b304ce6b4211705
[INFO] checking tertestrial/server against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftertestrial%2Fserver" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tertestrial/server 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] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/tertestrial/server
[INFO] finished tweaking git repo https://github.com/tertestrial/server
[INFO] tweaked toml for git repo https://github.com/tertestrial/server written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tertestrial/server 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 shellwords v1.1.0
[INFO] [stderr]   Downloaded ctrlc v3.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 666e859c2ad5884ff2d2d034a45d8dc607980ea6e22981875cbde26fa4f9ef5f
[INFO] running `Command { std: "docker" "start" "-a" "666e859c2ad5884ff2d2d034a45d8dc607980ea6e22981875cbde26fa4f9ef5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "666e859c2ad5884ff2d2d034a45d8dc607980ea6e22981875cbde26fa4f9ef5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "666e859c2ad5884ff2d2d034a45d8dc607980ea6e22981875cbde26fa4f9ef5f", kill_on_drop: false }`
[INFO] [stdout] 666e859c2ad5884ff2d2d034a45d8dc607980ea6e22981875cbde26fa4f9ef5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d5e3de4d6989d68dd21a3e5ca3914325fab2900d406c6b6c1d0e1f206b444edc
[INFO] running `Command { std: "docker" "start" "-a" "d5e3de4d6989d68dd21a3e5ca3914325fab2900d406c6b6c1d0e1f206b444edc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking shellwords v1.1.0
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking tertestrial v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/config.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/config.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[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 22.57s
[INFO] running `Command { std: "docker" "inspect" "d5e3de4d6989d68dd21a3e5ca3914325fab2900d406c6b6c1d0e1f206b444edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e3de4d6989d68dd21a3e5ca3914325fab2900d406c6b6c1d0e1f206b444edc", kill_on_drop: false }`
[INFO] [stdout] d5e3de4d6989d68dd21a3e5ca3914325fab2900d406c6b6c1d0e1f206b444edc