[INFO] fetching crate cargo-backup 0.4.1...
[INFO] checking cargo-backup-0.4.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate cargo-backup 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cargo-backup 0.4.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-backup 0.4.1
[INFO] finished tweaking crates.io crate cargo-backup 0.4.1
[INFO] tweaked toml for crates.io crate cargo-backup 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-backup 0.4.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.83
[INFO] [stderr]   Downloaded crypto-mac v0.11.1
[INFO] [stderr]   Downloaded futures-macro v0.3.23
[INFO] [stderr]   Downloaded futures-sink v0.3.23
[INFO] [stderr]   Downloaded clap_lex v0.3.0
[INFO] [stderr]   Downloaded block-modes v0.8.1
[INFO] [stderr]   Downloaded console v0.15.1
[INFO] [stderr]   Downloaded clap v4.0.9
[INFO] [stderr]   Downloaded hkdf v0.11.0
[INFO] [stderr]   Downloaded futures-util v0.3.23
[INFO] [stderr]   Downloaded zbus v1.9.3
[INFO] [stderr]   Downloaded zvariant v2.10.0
[INFO] [stderr]   Downloaded rustls v0.20.6
[INFO] [stderr]   Downloaded webpki-roots v0.22.4
[INFO] [stderr]   Downloaded ureq v2.5.0
[INFO] [stderr]   Downloaded dialoguer v0.10.2
[INFO] [stderr]   Downloaded async-io v1.8.0
[INFO] [stderr]   Downloaded futures-executor v0.3.23
[INFO] [stderr]   Downloaded futures v0.3.23
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded polling v2.2.0
[INFO] [stderr]   Downloaded keyring v1.2.0
[INFO] [stderr]   Downloaded owo-colors v3.4.0
[INFO] [stderr]   Downloaded serde v1.0.143
[INFO] [stderr]   Downloaded hmac v0.11.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.3
[INFO] [stderr]   Downloaded futures-channel v0.3.23
[INFO] [stderr]   Downloaded futures-core v0.3.23
[INFO] [stderr]   Downloaded futures-io v0.3.23
[INFO] [stderr]   Downloaded futures-task v0.3.23
[INFO] [stderr]   Downloaded scoped-tls v1.0.0
[INFO] [stderr]   Downloaded serde_repr v0.1.9
[INFO] [stderr]   Downloaded zbus_macros v1.9.3
[INFO] [stderr]   Downloaded secret-service v2.0.2
[INFO] [stderr]   Downloaded semver v1.0.13
[INFO] [stderr]   Downloaded thiserror-impl v1.0.32
[INFO] [stderr]   Downloaded serde_derive v1.0.143
[INFO] [stderr]   Downloaded once_cell v1.13.1
[INFO] [stderr]   Downloaded nb-connect v1.2.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.6.4
[INFO] [stderr]   Downloaded enumflags2 v0.6.4
[INFO] [stderr]   Downloaded proc-macro-crate v1.2.1
[INFO] [stderr]   Downloaded zvariant_derive v2.10.0
[INFO] [stderr]   Downloaded thiserror v1.0.32
[INFO] [stderr]   Downloaded shellexpand v2.1.2
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2948896b50e1191eeb18bb8b8e577d6eacbd350959cbe805bd18b7ed6e2ddf78
[INFO] running `Command { std: "docker" "start" "-a" "2948896b50e1191eeb18bb8b8e577d6eacbd350959cbe805bd18b7ed6e2ddf78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2948896b50e1191eeb18bb8b8e577d6eacbd350959cbe805bd18b7ed6e2ddf78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2948896b50e1191eeb18bb8b8e577d6eacbd350959cbe805bd18b7ed6e2ddf78", kill_on_drop: false }`
[INFO] [stdout] 2948896b50e1191eeb18bb8b8e577d6eacbd350959cbe805bd18b7ed6e2ddf78
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 934a3d02a02e5e57ce138de0db952d0e115f7439c2df4b2a8515716d5cf8e2bc
[INFO] running `Command { std: "docker" "start" "-a" "934a3d02a02e5e57ce138de0db952d0e115f7439c2df4b2a8515716d5cf8e2bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling futures-core v0.3.23
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-task v0.3.23
[INFO] [stderr]     Checking futures-io v0.3.23
[INFO] [stderr]    Compiling futures-channel v0.3.23
[INFO] [stderr]    Compiling futures-util v0.3.23
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking futures-sink v0.3.23
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling async-io v1.8.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking cpufeatures v0.2.3
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking zeroize v1.5.7
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking hkdf v0.11.0
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v4.0.9
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking shellexpand v2.1.2
[INFO] [stderr]     Checking nb-connect v1.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking dialoguer v0.10.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling futures-macro v0.3.23
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]    Compiling zbus_macros v1.9.3
[INFO] [stderr]    Compiling serde_repr v0.1.9
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.4
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling proc-macro-crate v1.2.1
[INFO] [stderr]    Compiling zvariant_derive v2.10.0
[INFO] [stderr]     Checking futures-executor v0.3.23
[INFO] [stderr]     Checking futures v0.3.23
[INFO] [stderr]     Checking enumflags2 v0.6.4
[INFO] [stderr]     Checking zvariant v2.10.0
[INFO] [stderr]     Checking ureq v2.5.0
[INFO] [stderr]     Checking zbus v1.9.3
[INFO] [stderr]     Checking secret-service v2.0.2
[INFO] [stderr]     Checking keyring v1.2.0
[INFO] [stderr]     Checking cargo-backup v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.45s
[INFO] running `Command { std: "docker" "inspect" "934a3d02a02e5e57ce138de0db952d0e115f7439c2df4b2a8515716d5cf8e2bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "934a3d02a02e5e57ce138de0db952d0e115f7439c2df4b2a8515716d5cf8e2bc", kill_on_drop: false }`
[INFO] [stdout] 934a3d02a02e5e57ce138de0db952d0e115f7439c2df4b2a8515716d5cf8e2bc