[INFO] fetching crate ffmusicsync 1.1.0...
[INFO] checking ffmusicsync-1.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate ffmusicsync 1.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ffmusicsync 1.1.0 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 crates.io crate ffmusicsync 1.1.0
[INFO] finished tweaking crates.io crate ffmusicsync 1.1.0
[INFO] tweaked toml for crates.io crate ffmusicsync 1.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ffmusicsync 1.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.2.3
[INFO] [stderr]   Downloaded serde_with_macros v1.5.2
[INFO] [stderr]   Downloaded ogg_pager v0.3.2
[INFO] [stderr]   Downloaded json_comments v0.2.1
[INFO] [stderr]   Downloaded paste v1.0.7
[INFO] [stderr]   Downloaded zeroize v1.5.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.38
[INFO] [stderr]   Downloaded os_str_bytes v6.0.1
[INFO] [stderr]   Downloaded serde_with v1.14.0
[INFO] [stderr]   Downloaded lofty v0.6.3
[INFO] [stderr]   Downloaded syn v1.0.94
[INFO] [stderr]   Downloaded libc v0.2.125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] bf8d8cc4398700068525a9df9350a71b3a8069d78c1b50d635bdb42a495daa8b
[INFO] running `Command { std: "docker" "start" "-a" "bf8d8cc4398700068525a9df9350a71b3a8069d78c1b50d635bdb42a495daa8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf8d8cc4398700068525a9df9350a71b3a8069d78c1b50d635bdb42a495daa8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8d8cc4398700068525a9df9350a71b3a8069d78c1b50d635bdb42a495daa8b", kill_on_drop: false }`
[INFO] [stdout] bf8d8cc4398700068525a9df9350a71b3a8069d78c1b50d635bdb42a495daa8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3908daa12270b644e081cb85ee74926bd78263a22f7d8da6402f32b6b1241df0
[INFO] running `Command { std: "docker" "start" "-a" "3908daa12270b644e081cb85ee74926bd78263a22f7d8da6402f32b6b1241df0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking os_str_bytes v6.0.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking ogg_pager v0.3.2
[INFO] [stderr]     Checking zeroize v1.5.5
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking json_comments v0.2.1
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking lofty v0.6.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dialoguer v0.10.1
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking ffmusicsync v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.48s
[INFO] running `Command { std: "docker" "inspect" "3908daa12270b644e081cb85ee74926bd78263a22f7d8da6402f32b6b1241df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3908daa12270b644e081cb85ee74926bd78263a22f7d8da6402f32b6b1241df0", kill_on_drop: false }`
[INFO] [stdout] 3908daa12270b644e081cb85ee74926bd78263a22f7d8da6402f32b6b1241df0
[INFO] checking ffmusicsync-1.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate ffmusicsync 1.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ffmusicsync 1.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffmusicsync 1.1.0
[INFO] finished tweaking crates.io crate ffmusicsync 1.1.0
[INFO] tweaked toml for crates.io crate ffmusicsync 1.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate ffmusicsync 1.1.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dd85d1317eee9b27dc426c22b462e0ab30c9fe716a87886a42a25105b9ed6e0
[INFO] running `Command { std: "docker" "start" "-a" "5dd85d1317eee9b27dc426c22b462e0ab30c9fe716a87886a42a25105b9ed6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dd85d1317eee9b27dc426c22b462e0ab30c9fe716a87886a42a25105b9ed6e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dd85d1317eee9b27dc426c22b462e0ab30c9fe716a87886a42a25105b9ed6e0", kill_on_drop: false }`
[INFO] [stdout] 5dd85d1317eee9b27dc426c22b462e0ab30c9fe716a87886a42a25105b9ed6e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad28795e2fb390f8ba196f3fe4ccc538ccab1d32a3a3f7b6577f8d4068174cba
[INFO] running `Command { std: "docker" "start" "-a" "ad28795e2fb390f8ba196f3fe4ccc538ccab1d32a3a3f7b6577f8d4068174cba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking os_str_bytes v6.0.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking ogg_pager v0.3.2
[INFO] [stderr]     Checking zeroize v1.5.5
[INFO] [stderr]     Checking json_comments v0.2.1
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking lofty v0.6.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dialoguer v0.10.1
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking ffmusicsync v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.25s
[INFO] running `Command { std: "docker" "inspect" "ad28795e2fb390f8ba196f3fe4ccc538ccab1d32a3a3f7b6577f8d4068174cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad28795e2fb390f8ba196f3fe4ccc538ccab1d32a3a3f7b6577f8d4068174cba", kill_on_drop: false }`
[INFO] [stdout] ad28795e2fb390f8ba196f3fe4ccc538ccab1d32a3a3f7b6577f8d4068174cba