[INFO] fetching crate spore-disassembler 0.1.1...
[INFO] checking spore-disassembler-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate spore-disassembler 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate spore-disassembler 0.1.1 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 spore-disassembler 0.1.1
[INFO] finished tweaking crates.io crate spore-disassembler 0.1.1
[INFO] tweaked toml for crates.io crate spore-disassembler 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate spore-disassembler 0.1.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.7.1
[INFO] [stderr]   Downloaded dataview v0.1.2
[INFO] [stderr]   Downloaded no-std-compat v0.4.1
[INFO] [stderr]   Downloaded derive_pod v0.1.1
[INFO] [stderr]   Downloaded pelite-macros v0.1.1
[INFO] [stderr]   Downloaded pelite v0.9.0
[INFO] [stderr]   Downloaded libc v0.2.104
[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] 4ac01cd579c1274bdeca8973f00f95efb2c8c2181f51534ef4122d2563d7e9f6
[INFO] running `Command { std: "docker" "start" "-a" "4ac01cd579c1274bdeca8973f00f95efb2c8c2181f51534ef4122d2563d7e9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ac01cd579c1274bdeca8973f00f95efb2c8c2181f51534ef4122d2563d7e9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac01cd579c1274bdeca8973f00f95efb2c8c2181f51534ef4122d2563d7e9f6", kill_on_drop: false }`
[INFO] [stdout] 4ac01cd579c1274bdeca8973f00f95efb2c8c2181f51534ef4122d2563d7e9f6
[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] 733f319f53289c3829d2fe055874f90c8209bc458bd58b0a944ea058cc8dd897
[INFO] running `Command { std: "docker" "start" "-a" "733f319f53289c3829d2fe055874f90c8209bc458bd58b0a944ea058cc8dd897", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling derive_pod v0.1.1
[INFO] [stderr]    Compiling pelite-macros v0.1.1
[INFO] [stderr]     Checking no-std-compat v0.4.1
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking dataview v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking pelite v0.9.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking spore-disassembler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `value` and `offset` are never read
[INFO] [stdout]   --> src/natural_index.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct NaturalIndex
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 9  | {
[INFO] [stdout] 10 |     pub value: u64,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub offset: i64,
[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: field `value` is never read
[INFO] [stdout]   --> src/natural_index.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct NaturalIndex
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 9  | {
[INFO] [stdout] 10 |     pub value: u64,
[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 5.28s
[INFO] running `Command { std: "docker" "inspect" "733f319f53289c3829d2fe055874f90c8209bc458bd58b0a944ea058cc8dd897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "733f319f53289c3829d2fe055874f90c8209bc458bd58b0a944ea058cc8dd897", kill_on_drop: false }`
[INFO] [stdout] 733f319f53289c3829d2fe055874f90c8209bc458bd58b0a944ea058cc8dd897
[INFO] checking spore-disassembler-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate spore-disassembler 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate spore-disassembler 0.1.1 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 spore-disassembler 0.1.1
[INFO] finished tweaking crates.io crate spore-disassembler 0.1.1
[INFO] tweaked toml for crates.io crate spore-disassembler 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate spore-disassembler 0.1.1 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" "+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] 2b47beb32506e3229e1d2ceb221fcfe97b72d1164b3483ee1a6ff6a97a6863b1
[INFO] running `Command { std: "docker" "start" "-a" "2b47beb32506e3229e1d2ceb221fcfe97b72d1164b3483ee1a6ff6a97a6863b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b47beb32506e3229e1d2ceb221fcfe97b72d1164b3483ee1a6ff6a97a6863b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b47beb32506e3229e1d2ceb221fcfe97b72d1164b3483ee1a6ff6a97a6863b1", kill_on_drop: false }`
[INFO] [stdout] 2b47beb32506e3229e1d2ceb221fcfe97b72d1164b3483ee1a6ff6a97a6863b1
[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] 6df01962238464e75731a42fff753c29303d85becda41828e19bae5bcbe1b2b0
[INFO] running `Command { std: "docker" "start" "-a" "6df01962238464e75731a42fff753c29303d85becda41828e19bae5bcbe1b2b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling derive_pod v0.1.1
[INFO] [stderr]     Checking no-std-compat v0.4.1
[INFO] [stderr]    Compiling pelite-macros v0.1.1
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking dataview v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking pelite v0.9.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking spore-disassembler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `value` and `offset` are never read
[INFO] [stdout]   --> src/natural_index.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct NaturalIndex
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 9  | {
[INFO] [stdout] 10 |     pub value: u64,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub offset: i64,
[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: field `value` is never read
[INFO] [stdout]   --> src/natural_index.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct NaturalIndex
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 9  | {
[INFO] [stdout] 10 |     pub value: u64,
[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 5.49s
[INFO] running `Command { std: "docker" "inspect" "6df01962238464e75731a42fff753c29303d85becda41828e19bae5bcbe1b2b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df01962238464e75731a42fff753c29303d85becda41828e19bae5bcbe1b2b0", kill_on_drop: false }`
[INFO] [stdout] 6df01962238464e75731a42fff753c29303d85becda41828e19bae5bcbe1b2b0