[INFO] cloning repository https://github.com/kessl/simulacra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kessl/simulacra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkessl%2Fsimulacra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkessl%2Fsimulacra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39aee31f54eaa49ee3b6b467a6c10405b2d7001a
[INFO] checking kessl/simulacra against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkessl%2Fsimulacra" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kessl/simulacra 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/kessl/simulacra
[INFO] finished tweaking git repo https://github.com/kessl/simulacra
[INFO] tweaked toml for git repo https://github.com/kessl/simulacra written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kessl/simulacra 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e8c8b89c4cee5d0df7d7c6e425f74b16279587ef4d44722bd5e341758ea08e4a
[INFO] running `Command { std: "docker" "start" "-a" "e8c8b89c4cee5d0df7d7c6e425f74b16279587ef4d44722bd5e341758ea08e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8c8b89c4cee5d0df7d7c6e425f74b16279587ef4d44722bd5e341758ea08e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c8b89c4cee5d0df7d7c6e425f74b16279587ef4d44722bd5e341758ea08e4a", kill_on_drop: false }`
[INFO] [stdout] e8c8b89c4cee5d0df7d7c6e425f74b16279587ef4d44722bd5e341758ea08e4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2fccfbcdf073c3228f9d69f458f182d266ecb221257c1f3440f357f24f9540f6
[INFO] running `Command { std: "docker" "start" "-a" "2fccfbcdf073c3228f9d69f458f182d266ecb221257c1f3440f357f24f9540f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.81
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling bumpalo v3.10.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling wasm-bindgen v0.2.81
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.81
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.81
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.81
[INFO] [stderr]     Checking js-sys v0.3.58
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking web-sys v0.3.58
[INFO] [stderr]     Checking simulacra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tick` is never read
[INFO] [stdout]  --> src/universe.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Universe {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |   tick: usize,
[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 `tick` is never read
[INFO] [stdout]  --> src/universe.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Universe {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |   tick: usize,
[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 14.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.81
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "2fccfbcdf073c3228f9d69f458f182d266ecb221257c1f3440f357f24f9540f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fccfbcdf073c3228f9d69f458f182d266ecb221257c1f3440f357f24f9540f6", kill_on_drop: false }`
[INFO] [stdout] 2fccfbcdf073c3228f9d69f458f182d266ecb221257c1f3440f357f24f9540f6
[INFO] checking kessl/simulacra against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkessl%2Fsimulacra" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kessl/simulacra on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kessl/simulacra
[INFO] finished tweaking git repo https://github.com/kessl/simulacra
[INFO] tweaked toml for git repo https://github.com/kessl/simulacra written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kessl/simulacra 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0df5e367847721e554afdbbb00cce4b07a9dec3f7ef263238f8caecfae7b7a10
[INFO] running `Command { std: "docker" "start" "-a" "0df5e367847721e554afdbbb00cce4b07a9dec3f7ef263238f8caecfae7b7a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0df5e367847721e554afdbbb00cce4b07a9dec3f7ef263238f8caecfae7b7a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df5e367847721e554afdbbb00cce4b07a9dec3f7ef263238f8caecfae7b7a10", kill_on_drop: false }`
[INFO] [stdout] 0df5e367847721e554afdbbb00cce4b07a9dec3f7ef263238f8caecfae7b7a10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f8c67df861b3275bc0ac11d7461fc93d73cf00b98700890e26f21b3c99a92c2
[INFO] running `Command { std: "docker" "start" "-a" "6f8c67df861b3275bc0ac11d7461fc93d73cf00b98700890e26f21b3c99a92c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.81
[INFO] [stderr]    Compiling bumpalo v3.10.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling wasm-bindgen v0.2.81
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.81
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.81
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.81
[INFO] [stderr]     Checking js-sys v0.3.58
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking web-sys v0.3.58
[INFO] [stderr]     Checking simulacra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tick` is never read
[INFO] [stdout]  --> src/universe.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Universe {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |   tick: usize,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tick` is never read
[INFO] [stdout]  --> src/universe.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Universe {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 7 |   tick: usize,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.76s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.81
[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" "6f8c67df861b3275bc0ac11d7461fc93d73cf00b98700890e26f21b3c99a92c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8c67df861b3275bc0ac11d7461fc93d73cf00b98700890e26f21b3c99a92c2", kill_on_drop: false }`
[INFO] [stdout] 6f8c67df861b3275bc0ac11d7461fc93d73cf00b98700890e26f21b3c99a92c2