[INFO] cloning repository https://github.com/wdv4758h/uuid-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wdv4758h/uuid-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdv4758h%2Fuuid-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdv4758h%2Fuuid-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b3a78ca2534f0afd448df24ea5cf52b02f9bea4
[INFO] checking wdv4758h/uuid-wasm against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdv4758h%2Fuuid-wasm" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wdv4758h/uuid-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/wdv4758h/uuid-wasm
[INFO] finished tweaking git repo https://github.com/wdv4758h/uuid-wasm
[INFO] tweaked toml for git repo https://github.com/wdv4758h/uuid-wasm written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wdv4758h/uuid-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.42
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.42
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.42
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.42
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.42
[INFO] [stderr]   Downloaded wee_alloc v0.4.4
[INFO] [stderr]   Downloaded bumpalo v2.4.1
[INFO] [stderr]   Downloaded libc v0.2.51
[INFO] [stderr]   Downloaded syn v0.15.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 764031b50b24ddbd8682091cb6adf8b89ecafe8ab60da19f69859a6810268a3e
[INFO] running `Command { std: "docker" "start" "-a" "764031b50b24ddbd8682091cb6adf8b89ecafe8ab60da19f69859a6810268a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "764031b50b24ddbd8682091cb6adf8b89ecafe8ab60da19f69859a6810268a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764031b50b24ddbd8682091cb6adf8b89ecafe8ab60da19f69859a6810268a3e", kill_on_drop: false }`
[INFO] [stdout] 764031b50b24ddbd8682091cb6adf8b89ecafe8ab60da19f69859a6810268a3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d789d8385061883259a4932975a0225d3b9f60ff597cd48c50b69fdb024702b7
[INFO] running `Command { std: "docker" "start" "-a" "d789d8385061883259a4932975a0225d3b9f60ff597cd48c50b69fdb024702b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.42
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling bumpalo v2.4.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.42
[INFO] [stderr]    Compiling wee_alloc v0.4.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.42
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.42
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.42
[INFO] [stderr]     Checking uuid-wasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `wee_alloc` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wee_alloc;
[INFO] [stdout]   |     ^^^^^^^^^ the item `wee_alloc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wee_alloc` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wee_alloc;
[INFO] [stdout]   |     ^^^^^^^^^ the item `wee_alloc` is already defined by prelude
[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 14.21s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.42
[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" "d789d8385061883259a4932975a0225d3b9f60ff597cd48c50b69fdb024702b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d789d8385061883259a4932975a0225d3b9f60ff597cd48c50b69fdb024702b7", kill_on_drop: false }`
[INFO] [stdout] d789d8385061883259a4932975a0225d3b9f60ff597cd48c50b69fdb024702b7
[INFO] checking wdv4758h/uuid-wasm against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdv4758h%2Fuuid-wasm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wdv4758h/uuid-wasm 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/wdv4758h/uuid-wasm
[INFO] finished tweaking git repo https://github.com/wdv4758h/uuid-wasm
[INFO] tweaked toml for git repo https://github.com/wdv4758h/uuid-wasm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wdv4758h/uuid-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b43aef016624583292626b59e38f9db665cc721c4586f38b6d4e14eca91dd050
[INFO] running `Command { std: "docker" "start" "-a" "b43aef016624583292626b59e38f9db665cc721c4586f38b6d4e14eca91dd050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b43aef016624583292626b59e38f9db665cc721c4586f38b6d4e14eca91dd050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b43aef016624583292626b59e38f9db665cc721c4586f38b6d4e14eca91dd050", kill_on_drop: false }`
[INFO] [stdout] b43aef016624583292626b59e38f9db665cc721c4586f38b6d4e14eca91dd050
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 073ae11e050875f12afe9cd57a2025f34050169227d6741aeefcfa4ff9045e65
[INFO] running `Command { std: "docker" "start" "-a" "073ae11e050875f12afe9cd57a2025f34050169227d6741aeefcfa4ff9045e65", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.42
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling bumpalo v2.4.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]    Compiling wee_alloc v0.4.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.42
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.42
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.42
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.42
[INFO] [stderr]     Checking uuid-wasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `wee_alloc` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wee_alloc;
[INFO] [stdout]   |     ^^^^^^^^^ the item `wee_alloc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wee_alloc` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wee_alloc;
[INFO] [stdout]   |     ^^^^^^^^^ the item `wee_alloc` is already defined by prelude
[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 13.57s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.42
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "073ae11e050875f12afe9cd57a2025f34050169227d6741aeefcfa4ff9045e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073ae11e050875f12afe9cd57a2025f34050169227d6741aeefcfa4ff9045e65", kill_on_drop: false }`
[INFO] [stdout] 073ae11e050875f12afe9cd57a2025f34050169227d6741aeefcfa4ff9045e65