[INFO] fetching crate cargo-minimal-versions 0.1.21...
[INFO] checking cargo-minimal-versions-0.1.21 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cargo-minimal-versions 0.1.21 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cargo-minimal-versions 0.1.21 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 cargo-minimal-versions 0.1.21
[INFO] finished tweaking crates.io crate cargo-minimal-versions 0.1.21
[INFO] tweaked toml for crates.io crate cargo-minimal-versions 0.1.21 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-minimal-versions 0.1.21 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]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.20.5
[INFO] [stderr]   Downloaded serde_derive v1.0.190
[INFO] [stderr]   Downloaded serde v1.0.190
[INFO] [stderr]   Downloaded termcolor v1.3.0
[INFO] [stderr]   Downloaded hashbrown v0.14.2
[INFO] [stderr]   Downloaded indexmap v2.0.2
[INFO] [stderr]   Downloaded semver v1.0.20
[INFO] [stderr]   Downloaded syn v2.0.38
[INFO] [stderr]   Downloaded winnow v0.5.17
[INFO] [stderr]   Downloaded ctrlc v3.4.1
[INFO] [stderr]   Downloaded errno v0.3.5
[INFO] [stderr]   Downloaded rustix v0.38.21
[INFO] [stderr]   Downloaded libc v0.2.149
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.10
[INFO] [stderr]   Downloaded lexopt v0.3.0
[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] 2d56cd42ea7bf9d72b5058a9f17540b24be821bb6ebd8fd3f53ab3d7ece3e201
[INFO] running `Command { std: "docker" "start" "-a" "2d56cd42ea7bf9d72b5058a9f17540b24be821bb6ebd8fd3f53ab3d7ece3e201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d56cd42ea7bf9d72b5058a9f17540b24be821bb6ebd8fd3f53ab3d7ece3e201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d56cd42ea7bf9d72b5058a9f17540b24be821bb6ebd8fd3f53ab3d7ece3e201", kill_on_drop: false }`
[INFO] [stdout] 2d56cd42ea7bf9d72b5058a9f17540b24be821bb6ebd8fd3f53ab3d7ece3e201
[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] 2b1df8276b54bcb70427bb4a3f6284380ea489cd638fed298ce2b24bfa2b7820
[INFO] running `Command { std: "docker" "start" "-a" "2b1df8276b54bcb70427bb4a3f6284380ea489cd638fed298ce2b24bfa2b7820", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking winnow v0.5.17
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking indexmap v2.0.2
[INFO] [stderr]     Checking lexopt v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking toml_edit v0.20.5
[INFO] [stderr]     Checking ctrlc v3.4.1
[INFO] [stderr]     Checking cargo-minimal-versions v0.1.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `into_object` is never used
[INFO] [stdout]    --> src/metadata.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn into_object(value: Value) -> Option<Object> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_object` is never used
[INFO] [stdout]    --> src/metadata.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | trait ObjectExt {
[INFO] [stdout]     |       --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 138 |     fn remove_object(&mut self, key: &'static str) -> ParseResult<Object>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_object` is never used
[INFO] [stdout]    --> src/metadata.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn into_object(value: Value) -> Option<Object> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_object` is never used
[INFO] [stdout]    --> src/metadata.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | trait ObjectExt {
[INFO] [stdout]     |       --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 138 |     fn remove_object(&mut self, key: &'static str) -> ParseResult<Object>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "2b1df8276b54bcb70427bb4a3f6284380ea489cd638fed298ce2b24bfa2b7820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b1df8276b54bcb70427bb4a3f6284380ea489cd638fed298ce2b24bfa2b7820", kill_on_drop: false }`
[INFO] [stdout] 2b1df8276b54bcb70427bb4a3f6284380ea489cd638fed298ce2b24bfa2b7820
[INFO] checking cargo-minimal-versions-0.1.21 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cargo-minimal-versions 0.1.21 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cargo-minimal-versions 0.1.21 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 cargo-minimal-versions 0.1.21
[INFO] finished tweaking crates.io crate cargo-minimal-versions 0.1.21
[INFO] tweaked toml for crates.io crate cargo-minimal-versions 0.1.21 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-minimal-versions 0.1.21 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] 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18d00b0b6b886e03e61e3db3e99cf9eebeb23d3547e57a310fd190dcf59377ca
[INFO] running `Command { std: "docker" "start" "-a" "18d00b0b6b886e03e61e3db3e99cf9eebeb23d3547e57a310fd190dcf59377ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18d00b0b6b886e03e61e3db3e99cf9eebeb23d3547e57a310fd190dcf59377ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d00b0b6b886e03e61e3db3e99cf9eebeb23d3547e57a310fd190dcf59377ca", kill_on_drop: false }`
[INFO] [stdout] 18d00b0b6b886e03e61e3db3e99cf9eebeb23d3547e57a310fd190dcf59377ca
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2357a5dd2f2cffbe05d6557e2c96cad8bd3053fedf0961750507da4a9b2cf083
[INFO] running `Command { std: "docker" "start" "-a" "2357a5dd2f2cffbe05d6557e2c96cad8bd3053fedf0961750507da4a9b2cf083", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking winnow v0.5.17
[INFO] [stderr]     Checking lexopt v0.3.0
[INFO] [stderr]     Checking indexmap v2.0.2
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking toml_edit v0.20.5
[INFO] [stderr]     Checking ctrlc v3.4.1
[INFO] [stderr]     Checking cargo-minimal-versions v0.1.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `into_object` is never used
[INFO] [stdout]    --> src/metadata.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn into_object(value: Value) -> Option<Object> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_object` is never used
[INFO] [stdout]    --> src/metadata.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | trait ObjectExt {
[INFO] [stdout]     |       --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 138 |     fn remove_object(&mut self, key: &'static str) -> ParseResult<Object>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_object` is never used
[INFO] [stdout]    --> src/metadata.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn into_object(value: Value) -> Option<Object> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_object` is never used
[INFO] [stdout]    --> src/metadata.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | trait ObjectExt {
[INFO] [stdout]     |       --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 138 |     fn remove_object(&mut self, key: &'static str) -> ParseResult<Object>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "2357a5dd2f2cffbe05d6557e2c96cad8bd3053fedf0961750507da4a9b2cf083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2357a5dd2f2cffbe05d6557e2c96cad8bd3053fedf0961750507da4a9b2cf083", kill_on_drop: false }`
[INFO] [stdout] 2357a5dd2f2cffbe05d6557e2c96cad8bd3053fedf0961750507da4a9b2cf083