[INFO] fetching crate atomic_cell 0.2.0...
[INFO] checking atomic_cell-0.2.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate atomic_cell 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate atomic_cell 0.2.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_panic v0.2.9
[INFO] [stderr]   Downloaded typewit_proc_macros v1.8.1
[INFO] [stderr]   Downloaded typewit v1.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 656e143e1461ddd6f19c82d72e8072949832250e1afa5d1f3b404d800a382ec3
[INFO] running `Command { std: "docker" "start" "-a" "656e143e1461ddd6f19c82d72e8072949832250e1afa5d1f3b404d800a382ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "656e143e1461ddd6f19c82d72e8072949832250e1afa5d1f3b404d800a382ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "656e143e1461ddd6f19c82d72e8072949832250e1afa5d1f3b404d800a382ec3", kill_on_drop: false }`
[INFO] [stdout] 656e143e1461ddd6f19c82d72e8072949832250e1afa5d1f3b404d800a382ec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51ead834c0208e407600423c66a1cfa9d83fa2bda82da2be350807eff8deb4d8
[INFO] running `Command { std: "docker" "start" "-a" "51ead834c0208e407600423c66a1cfa9d83fa2bda82da2be350807eff8deb4d8", 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 v0.2.9
[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]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[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 removing this field
[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 removing this field
[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 removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "51ead834c0208e407600423c66a1cfa9d83fa2bda82da2be350807eff8deb4d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ead834c0208e407600423c66a1cfa9d83fa2bda82da2be350807eff8deb4d8", kill_on_drop: false }`
[INFO] [stdout] 51ead834c0208e407600423c66a1cfa9d83fa2bda82da2be350807eff8deb4d8
[INFO] checking atomic_cell-0.2.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate atomic_cell 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate atomic_cell 0.2.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dba845a59346f6f11bbda662174fbe623a252d8615c3ed8d9adba9651bb1c0f
[INFO] running `Command { std: "docker" "start" "-a" "4dba845a59346f6f11bbda662174fbe623a252d8615c3ed8d9adba9651bb1c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dba845a59346f6f11bbda662174fbe623a252d8615c3ed8d9adba9651bb1c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dba845a59346f6f11bbda662174fbe623a252d8615c3ed8d9adba9651bb1c0f", kill_on_drop: false }`
[INFO] [stdout] 4dba845a59346f6f11bbda662174fbe623a252d8615c3ed8d9adba9651bb1c0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1937289e1cc249ce09810c61b988ffb534b407f285e85c7a4019dce70c77a2c3
[INFO] running `Command { std: "docker" "start" "-a" "1937289e1cc249ce09810c61b988ffb534b407f285e85c7a4019dce70c77a2c3", 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 v0.2.9
[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]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[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 removing this field
[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 removing this field
[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 removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "1937289e1cc249ce09810c61b988ffb534b407f285e85c7a4019dce70c77a2c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1937289e1cc249ce09810c61b988ffb534b407f285e85c7a4019dce70c77a2c3", kill_on_drop: false }`
[INFO] [stdout] 1937289e1cc249ce09810c61b988ffb534b407f285e85c7a4019dce70c77a2c3