[INFO] cloning repository https://github.com/Ouvill/zero-width-encoder-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ouvill/zero-width-encoder-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOuvill%2Fzero-width-encoder-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOuvill%2Fzero-width-encoder-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ba9a0ba267995af2b763e3dc4437e5c290ef327
[INFO] checking Ouvill/zero-width-encoder-wasm against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOuvill%2Fzero-width-encoder-wasm" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ouvill/zero-width-encoder-wasm 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/Ouvill/zero-width-encoder-wasm
[INFO] finished tweaking git repo https://github.com/Ouvill/zero-width-encoder-wasm
[INFO] tweaked toml for git repo https://github.com/Ouvill/zero-width-encoder-wasm written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ouvill/zero-width-encoder-wasm 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] 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] 4a403a63dddf93b50f0144b2f2ce355e6b115cce6d3772844ee63f79abfa99d8
[INFO] running `Command { std: "docker" "start" "-a" "4a403a63dddf93b50f0144b2f2ce355e6b115cce6d3772844ee63f79abfa99d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a403a63dddf93b50f0144b2f2ce355e6b115cce6d3772844ee63f79abfa99d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a403a63dddf93b50f0144b2f2ce355e6b115cce6d3772844ee63f79abfa99d8", kill_on_drop: false }`
[INFO] [stdout] 4a403a63dddf93b50f0144b2f2ce355e6b115cce6d3772844ee63f79abfa99d8
[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] 717dede9e5fb6608b94f1a8cd7a87abac6b4edc22613ed083d6e41a767738e4f
[INFO] running `Command { std: "docker" "start" "-a" "717dede9e5fb6608b94f1a8cd7a87abac6b4edc22613ed083d6e41a767738e4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.79
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.79
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.29
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.79
[INFO] [stderr]     Checking js-sys v0.3.56
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.29
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.29
[INFO] [stderr]     Checking zero-width-encoder-wasm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `wasm_bindgen` is imported redundantly
[INFO] [stdout]  --> src/decoder/mod.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{encode_table, wasm_bindgen};
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate wasm_bindgen;
[INFO] [stdout]   | -------------------------- the item `wasm_bindgen` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wasm_bindgen` is imported redundantly
[INFO] [stdout]  --> src/encoder/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::wasm_bindgen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate wasm_bindgen;
[INFO] [stdout]   | -------------------------- the item `wasm_bindgen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `js_sys` is imported redundantly
[INFO] [stdout]  --> src/steganography/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use js_sys;
[INFO] [stdout]   |     ^^^^^^ the item `js_sys` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wasm_bindgen` is imported redundantly
[INFO] [stdout]  --> src/decoder/mod.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{encode_table, wasm_bindgen};
[INFO] [stdout]   |                           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate wasm_bindgen;
[INFO] [stdout]   | -------------------------- the item `wasm_bindgen` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wasm_bindgen` is imported redundantly
[INFO] [stdout]  --> src/encoder/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::wasm_bindgen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate wasm_bindgen;
[INFO] [stdout]   | -------------------------- the item `wasm_bindgen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 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 9.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.79
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "717dede9e5fb6608b94f1a8cd7a87abac6b4edc22613ed083d6e41a767738e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "717dede9e5fb6608b94f1a8cd7a87abac6b4edc22613ed083d6e41a767738e4f", kill_on_drop: false }`
[INFO] [stdout] 717dede9e5fb6608b94f1a8cd7a87abac6b4edc22613ed083d6e41a767738e4f