[INFO] fetching crate diss 0.2.10...
[INFO] checking diss-0.2.10 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate diss 0.2.10 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate diss 0.2.10 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 diss 0.2.10
[INFO] finished tweaking crates.io crate diss 0.2.10
[INFO] tweaked toml for crates.io crate diss 0.2.10 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate diss 0.2.10 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 whoami v1.2.3
[INFO] [stderr]   Downloaded bumpalo v3.11.1
[INFO] [stderr]   Downloaded errno v0.1.8
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded pty v0.2.2
[INFO] [stderr]   Downloaded os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded log-derive v0.4.1
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.35
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded nix v0.25.0
[INFO] [stderr]   Downloaded fern v0.6.1
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] [stderr]   Downloaded thiserror v1.0.35
[INFO] [stderr]   Downloaded termion v2.0.1
[INFO] [stderr]   Downloaded timeout-readwrite v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dcf349c22256fb1a60a78b94e9a6236b168e30147334132e78b1e853bd4ea4e5
[INFO] running `Command { std: "docker" "start" "-a" "dcf349c22256fb1a60a78b94e9a6236b168e30147334132e78b1e853bd4ea4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcf349c22256fb1a60a78b94e9a6236b168e30147334132e78b1e853bd4ea4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf349c22256fb1a60a78b94e9a6236b168e30147334132e78b1e853bd4ea4e5", kill_on_drop: false }`
[INFO] [stdout] dcf349c22256fb1a60a78b94e9a6236b168e30147334132e78b1e853bd4ea4e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 400ccfd4b3a236ebaeb4ab66356ec694bbbe263a388bc505928dd42880f834c5
[INFO] running `Command { std: "docker" "start" "-a" "400ccfd4b3a236ebaeb4ab66356ec694bbbe263a388bc505928dd42880f834c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking whoami v1.2.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking fern v0.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking nix v0.25.0
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking pty v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook v0.3.14
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking timeout-readwrite v0.3.2
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling log-derive v0.4.1
[INFO] [stderr]     Checking clap v3.2.22
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking diss v0.2.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NoConfigDir` is never constructed
[INFO] [stdout]    --> src/lib.rs:485:8
[INFO] [stdout]     |
[INFO] [stdout] 485 | struct NoConfigDir;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoConfigDir` is never constructed
[INFO] [stdout]    --> src/lib.rs:485:8
[INFO] [stdout]     |
[INFO] [stdout] 485 | struct NoConfigDir;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.94s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: daemonize v0.4.1
[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" "400ccfd4b3a236ebaeb4ab66356ec694bbbe263a388bc505928dd42880f834c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400ccfd4b3a236ebaeb4ab66356ec694bbbe263a388bc505928dd42880f834c5", kill_on_drop: false }`
[INFO] [stdout] 400ccfd4b3a236ebaeb4ab66356ec694bbbe263a388bc505928dd42880f834c5
[INFO] checking diss-0.2.10 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate diss 0.2.10 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate diss 0.2.10 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 diss 0.2.10
[INFO] finished tweaking crates.io crate diss 0.2.10
[INFO] tweaked toml for crates.io crate diss 0.2.10 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate diss 0.2.10 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 591bbfa866693cd4517cdf126d1435b423fa3f72a3d020cf8c89c5a53fb19659
[INFO] running `Command { std: "docker" "start" "-a" "591bbfa866693cd4517cdf126d1435b423fa3f72a3d020cf8c89c5a53fb19659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "591bbfa866693cd4517cdf126d1435b423fa3f72a3d020cf8c89c5a53fb19659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591bbfa866693cd4517cdf126d1435b423fa3f72a3d020cf8c89c5a53fb19659", kill_on_drop: false }`
[INFO] [stdout] 591bbfa866693cd4517cdf126d1435b423fa3f72a3d020cf8c89c5a53fb19659
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 331ed81553ca3adcdaf72ba209b0d549fcec7a5bb848fb97a4f15815ca43f6cc
[INFO] running `Command { std: "docker" "start" "-a" "331ed81553ca3adcdaf72ba209b0d549fcec7a5bb848fb97a4f15815ca43f6cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking whoami v1.2.3
[INFO] [stderr]     Checking fern v0.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking nix v0.25.0
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking pty v0.2.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking signal-hook v0.3.14
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking timeout-readwrite v0.3.2
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling log-derive v0.4.1
[INFO] [stderr]     Checking clap v3.2.22
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking diss v0.2.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NoConfigDir` is never constructed
[INFO] [stdout]    --> src/lib.rs:485:8
[INFO] [stdout]     |
[INFO] [stdout] 485 | struct NoConfigDir;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoConfigDir` is never constructed
[INFO] [stdout]    --> src/lib.rs:485:8
[INFO] [stdout]     |
[INFO] [stdout] 485 | struct NoConfigDir;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: daemonize v0.4.1
[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" "331ed81553ca3adcdaf72ba209b0d549fcec7a5bb848fb97a4f15815ca43f6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "331ed81553ca3adcdaf72ba209b0d549fcec7a5bb848fb97a4f15815ca43f6cc", kill_on_drop: false }`
[INFO] [stdout] 331ed81553ca3adcdaf72ba209b0d549fcec7a5bb848fb97a4f15815ca43f6cc