[INFO] fetching crate aga8 0.4.0...
[INFO] checking aga8-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate aga8 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate aga8 0.4.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aga8 0.4.0
[INFO] finished tweaking crates.io crate aga8 0.4.0
[INFO] tweaked toml for crates.io crate aga8 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate aga8 0.4.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00ad75ca21a043afe2c30c872c8e10d6a651696cb174dc97dfe7d9f4fb1b6a1d
[INFO] running `Command { std: "docker" "start" "-a" "00ad75ca21a043afe2c30c872c8e10d6a651696cb174dc97dfe7d9f4fb1b6a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00ad75ca21a043afe2c30c872c8e10d6a651696cb174dc97dfe7d9f4fb1b6a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ad75ca21a043afe2c30c872c8e10d6a651696cb174dc97dfe7d9f4fb1b6a1d", kill_on_drop: false }`
[INFO] [stdout] 00ad75ca21a043afe2c30c872c8e10d6a651696cb174dc97dfe7d9f4fb1b6a1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 186b96e653d020d994b42a782eac864b5585ecb9ffe8efe4ffa288e295808dd8
[INFO] running `Command { std: "docker" "start" "-a" "186b96e653d020d994b42a782eac864b5585ecb9ffe8efe4ffa288e295808dd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
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[INFO] [stderr]    Compiling serde_derive v1.0.183
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[INFO] [stderr]    Compiling rustix v0.38.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
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[INFO] [stderr]    Compiling syn v1.0.109
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[INFO] [stderr]    Compiling linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
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[INFO] [stderr]    Compiling rayon-core v1.11.0
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[INFO] [stderr]    Compiling tempfile v3.7.1
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[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling winres v0.1.12
[INFO] [stderr]    Compiling aga8 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `COMP_FULL` is never used
[INFO] [stdout]  --> examples/iteration_test.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const COMP_FULL: Composition = Composition {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.96s
[INFO] running `Command { std: "docker" "inspect" "186b96e653d020d994b42a782eac864b5585ecb9ffe8efe4ffa288e295808dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "186b96e653d020d994b42a782eac864b5585ecb9ffe8efe4ffa288e295808dd8", kill_on_drop: false }`
[INFO] [stdout] 186b96e653d020d994b42a782eac864b5585ecb9ffe8efe4ffa288e295808dd8