[INFO] fetching crate amigo 0.3.1...
[INFO] checking amigo-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate amigo 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate amigo 0.3.1 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 amigo 0.3.1
[INFO] finished tweaking crates.io crate amigo 0.3.1
[INFO] tweaked toml for crates.io crate amigo 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages
[INFO] [stderr]       Adding aho-corasick v0.6.10 (latest: v1.1.3)
[INFO] [stderr]       Adding regex v0.2.11 (latest: v1.10.4)
[INFO] [stderr]       Adding regex-syntax v0.5.6 (latest: v0.8.3)
[INFO] [stderr]       Adding thread_local v0.3.6 (latest: v1.1.8)
[INFO] [stderr]       Adding ucd-util v0.1.10 (latest: v0.2.1)
[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 utf8-ranges v1.0.5
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded ucd-util v0.1.10
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8427b69f064a2137713c120850fdb0afe66d6b09f5e5ae04377792c3e38b3eb6
[INFO] running `Command { std: "docker" "start" "-a" "8427b69f064a2137713c120850fdb0afe66d6b09f5e5ae04377792c3e38b3eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8427b69f064a2137713c120850fdb0afe66d6b09f5e5ae04377792c3e38b3eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8427b69f064a2137713c120850fdb0afe66d6b09f5e5ae04377792c3e38b3eb6", kill_on_drop: false }`
[INFO] [stdout] 8427b69f064a2137713c120850fdb0afe66d6b09f5e5ae04377792c3e38b3eb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1be283471a90a53ebf3c692d2c3ac3f735a79f8e8f260ac26b8f9213d9eb2307
[INFO] running `Command { std: "docker" "start" "-a" "1be283471a90a53ebf3c692d2c3ac3f735a79f8e8f260ac26b8f9213d9eb2307", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking amigo v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kind`, `val`, `line`, `col`, and `len` are never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Token {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 21 |     kind: TokenType,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 22 |     val: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 23 |     line: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     col: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     len: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 `kind`, `val`, `line`, `col`, and `len` are never read
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Token {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 21 |     kind: TokenType,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 22 |     val: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 23 |     line: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     col: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     len: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.83s
[INFO] running `Command { std: "docker" "inspect" "1be283471a90a53ebf3c692d2c3ac3f735a79f8e8f260ac26b8f9213d9eb2307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be283471a90a53ebf3c692d2c3ac3f735a79f8e8f260ac26b8f9213d9eb2307", kill_on_drop: false }`
[INFO] [stdout] 1be283471a90a53ebf3c692d2c3ac3f735a79f8e8f260ac26b8f9213d9eb2307