[INFO] cloning repository https://github.com/ultraspicy/mp4_snark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ultraspicy/mp4_snark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultraspicy%2Fmp4_snark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultraspicy%2Fmp4_snark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ec984119402acdabb239c24986258c1c51cc4a1
[INFO] checking ultraspicy/mp4_snark against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultraspicy%2Fmp4_snark" "/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/ultraspicy/mp4_snark 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/ultraspicy/mp4_snark
[INFO] finished tweaking git repo https://github.com/ultraspicy/mp4_snark
[INFO] tweaked toml for git repo https://github.com/ultraspicy/mp4_snark written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ultraspicy/mp4_snark 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 ffmpeg-next v6.1.0
[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] 86f766b3b50adf048433d818b2f53561bfb5a65cbe0b767fef863fea7b2d5fbd
[INFO] running `Command { std: "docker" "start" "-a" "86f766b3b50adf048433d818b2f53561bfb5a65cbe0b767fef863fea7b2d5fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86f766b3b50adf048433d818b2f53561bfb5a65cbe0b767fef863fea7b2d5fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f766b3b50adf048433d818b2f53561bfb5a65cbe0b767fef863fea7b2d5fbd", kill_on_drop: false }`
[INFO] [stdout] 86f766b3b50adf048433d818b2f53561bfb5a65cbe0b767fef863fea7b2d5fbd
[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] 024bf54b6d1b1971b018ee8cf39d5371278b6dfcd5fbed7532a54f4cd32bc18a
[INFO] running `Command { std: "docker" "start" "-a" "024bf54b6d1b1971b018ee8cf39d5371278b6dfcd5fbed7532a54f4cd32bc18a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.73
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bindgen v0.64.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling clang-sys v1.7.0
[INFO] [stderr]    Compiling libloading v0.8.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling ffmpeg-next v6.1.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]    Compiling quote v1.0.34
[INFO] [stderr]    Compiling bindgen v0.69.1
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking syn v2.0.44
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling ffmpeg-sys-next v6.1.0
[INFO] [stderr]     Checking mp4_snark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input_path`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let input_path = "input.mp4";
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     Err(error) => panic!("create file failed"),
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_path`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let input_path = "input.mp4";
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     Err(error) => panic!("create file failed"),
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.21s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "024bf54b6d1b1971b018ee8cf39d5371278b6dfcd5fbed7532a54f4cd32bc18a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024bf54b6d1b1971b018ee8cf39d5371278b6dfcd5fbed7532a54f4cd32bc18a", kill_on_drop: false }`
[INFO] [stdout] 024bf54b6d1b1971b018ee8cf39d5371278b6dfcd5fbed7532a54f4cd32bc18a
[INFO] checking ultraspicy/mp4_snark against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fultraspicy%2Fmp4_snark" "/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/ultraspicy/mp4_snark 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/ultraspicy/mp4_snark
[INFO] finished tweaking git repo https://github.com/ultraspicy/mp4_snark
[INFO] tweaked toml for git repo https://github.com/ultraspicy/mp4_snark written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ultraspicy/mp4_snark 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] d711f8d1482ebe10e5ef44286a606ceb97bfa06bffce10688473f5391d927e9b
[INFO] running `Command { std: "docker" "start" "-a" "d711f8d1482ebe10e5ef44286a606ceb97bfa06bffce10688473f5391d927e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d711f8d1482ebe10e5ef44286a606ceb97bfa06bffce10688473f5391d927e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d711f8d1482ebe10e5ef44286a606ceb97bfa06bffce10688473f5391d927e9b", kill_on_drop: false }`
[INFO] [stdout] d711f8d1482ebe10e5ef44286a606ceb97bfa06bffce10688473f5391d927e9b
[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] bb95a3116662008cb9c48092169c95f83c8f66ed53cc48d0039b435041dc0073
[INFO] running `Command { std: "docker" "start" "-a" "bb95a3116662008cb9c48092169c95f83c8f66ed53cc48d0039b435041dc0073", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.73
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling bindgen v0.64.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling clang-sys v1.7.0
[INFO] [stderr]    Compiling libloading v0.8.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.34
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]    Compiling bindgen v0.69.1
[INFO] [stderr]    Compiling ffmpeg-next v6.1.0
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking syn v2.0.44
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling ffmpeg-sys-next v6.1.0
[INFO] [stderr]     Checking mp4_snark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input_path`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let input_path = "input.mp4";
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_path`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let input_path = "input.mp4";
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     Err(error) => panic!("create file failed"),
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                     Err(error) => panic!("create file failed"),
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 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 37.55s
[INFO] running `Command { std: "docker" "inspect" "bb95a3116662008cb9c48092169c95f83c8f66ed53cc48d0039b435041dc0073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb95a3116662008cb9c48092169c95f83c8f66ed53cc48d0039b435041dc0073", kill_on_drop: false }`
[INFO] [stdout] bb95a3116662008cb9c48092169c95f83c8f66ed53cc48d0039b435041dc0073