[INFO] fetching crate atomic_cell 0.2.0...
[INFO] checking atomic_cell-0.2.0 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate atomic_cell 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate atomic_cell 0.2.0 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atomic_cell 0.2.0
[INFO] finished tweaking crates.io crate atomic_cell 0.2.0
[INFO] tweaked toml for crates.io crate atomic_cell 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typewit_proc_macros v1.8.1
[INFO] [stderr]   Downloaded const_panic v0.2.8
[INFO] [stderr]   Downloaded typewit v1.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94304f3e0c1d4c5e44680e3cd0bfb0b6072c36d4b0bb144f29ed27fe7acfd31c
[INFO] running `Command { std: "docker" "start" "-a" "94304f3e0c1d4c5e44680e3cd0bfb0b6072c36d4b0bb144f29ed27fe7acfd31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94304f3e0c1d4c5e44680e3cd0bfb0b6072c36d4b0bb144f29ed27fe7acfd31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94304f3e0c1d4c5e44680e3cd0bfb0b6072c36d4b0bb144f29ed27fe7acfd31c", kill_on_drop: false }`
[INFO] [stdout] 94304f3e0c1d4c5e44680e3cd0bfb0b6072c36d4b0bb144f29ed27fe7acfd31c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce74e5a723f9c94a2b57d1cf0be67e0cf2db3a42574d5c054fe55de6d872628c
[INFO] running `Command { std: "docker" "start" "-a" "ce74e5a723f9c94a2b57d1cf0be67e0cf2db3a42574d5c054fe55de6d872628c", kill_on_drop: false }`
[INFO] [stderr]    Compiling typewit_proc_macros v1.8.1
[INFO] [stderr]     Checking typewit v1.9.0
[INFO] [stderr]     Checking const_panic v0.2.8
[INFO] [stderr]     Checking atomic_cell v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/atomic_cell.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     struct UsizeWrap(usize);
[INFO] [stdout]   |            --------- ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     struct UsizeWrap(());
[INFO] [stdout]   |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/atomic_cell.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct U8Wrap(bool);
[INFO] [stdout]   |            ------ ^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct U8Wrap(());
[INFO] [stdout]   |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/atomic_cell.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct I16Wrap(i16);
[INFO] [stdout]    |            ------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct I16Wrap(());
[INFO] [stdout]    |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/atomic_cell.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct U64Align8(u64);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct U64Align8(());
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "ce74e5a723f9c94a2b57d1cf0be67e0cf2db3a42574d5c054fe55de6d872628c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce74e5a723f9c94a2b57d1cf0be67e0cf2db3a42574d5c054fe55de6d872628c", kill_on_drop: false }`
[INFO] [stdout] ce74e5a723f9c94a2b57d1cf0be67e0cf2db3a42574d5c054fe55de6d872628c
[INFO] checking atomic_cell-0.2.0 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate atomic_cell 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate atomic_cell 0.2.0 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atomic_cell 0.2.0
[INFO] finished tweaking crates.io crate atomic_cell 0.2.0
[INFO] tweaked toml for crates.io crate atomic_cell 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbb014139ecd386b39115258eb6ca8b012a67dc6e54e38c1dfbbb270c19cb9f1
[INFO] running `Command { std: "docker" "start" "-a" "cbb014139ecd386b39115258eb6ca8b012a67dc6e54e38c1dfbbb270c19cb9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb014139ecd386b39115258eb6ca8b012a67dc6e54e38c1dfbbb270c19cb9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb014139ecd386b39115258eb6ca8b012a67dc6e54e38c1dfbbb270c19cb9f1", kill_on_drop: false }`
[INFO] [stdout] cbb014139ecd386b39115258eb6ca8b012a67dc6e54e38c1dfbbb270c19cb9f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88d2f64a9d639b36f0bec467307cc93d367a035221d22c4f08250c588617ab76
[INFO] running `Command { std: "docker" "start" "-a" "88d2f64a9d639b36f0bec467307cc93d367a035221d22c4f08250c588617ab76", kill_on_drop: false }`
[INFO] [stderr]    Compiling typewit_proc_macros v1.8.1
[INFO] [stderr]     Checking typewit v1.9.0
[INFO] [stderr]     Checking const_panic v0.2.8
[INFO] [stderr]     Checking atomic_cell v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/atomic_cell.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     struct UsizeWrap(usize);
[INFO] [stdout]   |            --------- ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     struct UsizeWrap(());
[INFO] [stdout]   |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/atomic_cell.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct U8Wrap(bool);
[INFO] [stdout]   |            ------ ^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct U8Wrap(());
[INFO] [stdout]   |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/atomic_cell.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct I16Wrap(i16);
[INFO] [stdout]    |            ------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct I16Wrap(());
[INFO] [stdout]    |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/atomic_cell.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct U64Align8(u64);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct U64Align8(());
[INFO] [stdout]    |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "88d2f64a9d639b36f0bec467307cc93d367a035221d22c4f08250c588617ab76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d2f64a9d639b36f0bec467307cc93d367a035221d22c4f08250c588617ab76", kill_on_drop: false }`
[INFO] [stdout] 88d2f64a9d639b36f0bec467307cc93d367a035221d22c4f08250c588617ab76
