[INFO] fetching crate fold-dif 0.1.0...
[INFO] checking fold-dif-0.1.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate fold-dif 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate fold-dif 0.1.0 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 fold-dif 0.1.0
[INFO] finished tweaking crates.io crate fold-dif 0.1.0
[INFO] tweaked toml for crates.io crate fold-dif 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate fold-dif 0.1.0 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded file-size v1.0.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.59
[INFO] [stderr]   Downloaded thiserror v1.0.59
[INFO] [stderr]   Downloaded proc-macro2 v1.0.81
[INFO] [stderr]   Downloaded syn v2.0.60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3ca173a8dbf240a045943730cd58e1b6958e97ee6b555c6c8bca5296c216b407
[INFO] running `Command { std: "docker" "start" "-a" "3ca173a8dbf240a045943730cd58e1b6958e97ee6b555c6c8bca5296c216b407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ca173a8dbf240a045943730cd58e1b6958e97ee6b555c6c8bca5296c216b407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca173a8dbf240a045943730cd58e1b6958e97ee6b555c6c8bca5296c216b407", kill_on_drop: false }`
[INFO] [stdout] 3ca173a8dbf240a045943730cd58e1b6958e97ee6b555c6c8bca5296c216b407
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cc4ca7be8bae75bf59778ee9461a2807aa77f40e2731be07af6d16605107438f
[INFO] running `Command { std: "docker" "start" "-a" "cc4ca7be8bae75bf59778ee9461a2807aa77f40e2731be07af6d16605107438f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]    Compiling thiserror v1.0.59
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking file-size v1.0.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]     Checking fold-dif v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `Command { std: "docker" "inspect" "cc4ca7be8bae75bf59778ee9461a2807aa77f40e2731be07af6d16605107438f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc4ca7be8bae75bf59778ee9461a2807aa77f40e2731be07af6d16605107438f", kill_on_drop: false }`
[INFO] [stdout] cc4ca7be8bae75bf59778ee9461a2807aa77f40e2731be07af6d16605107438f
[INFO] checking fold-dif-0.1.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate fold-dif 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate fold-dif 0.1.0 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 fold-dif 0.1.0
[INFO] finished tweaking crates.io crate fold-dif 0.1.0
[INFO] tweaked toml for crates.io crate fold-dif 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate fold-dif 0.1.0 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5c788e2cc743b982ebda4f08e5e928da7811e22abb1cfe3cd8bd8e986eafba5b
[INFO] running `Command { std: "docker" "start" "-a" "5c788e2cc743b982ebda4f08e5e928da7811e22abb1cfe3cd8bd8e986eafba5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c788e2cc743b982ebda4f08e5e928da7811e22abb1cfe3cd8bd8e986eafba5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c788e2cc743b982ebda4f08e5e928da7811e22abb1cfe3cd8bd8e986eafba5b", kill_on_drop: false }`
[INFO] [stdout] 5c788e2cc743b982ebda4f08e5e928da7811e22abb1cfe3cd8bd8e986eafba5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 58f771c8cd0cf7e34147ac24688ba1ef218f6b137d16be8ff3022b1468ec92b7
[INFO] running `Command { std: "docker" "start" "-a" "58f771c8cd0cf7e34147ac24688ba1ef218f6b137d16be8ff3022b1468ec92b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]    Compiling thiserror v1.0.59
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking file-size v1.0.3
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]     Checking fold-dif v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "58f771c8cd0cf7e34147ac24688ba1ef218f6b137d16be8ff3022b1468ec92b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58f771c8cd0cf7e34147ac24688ba1ef218f6b137d16be8ff3022b1468ec92b7", kill_on_drop: false }`
[INFO] [stdout] 58f771c8cd0cf7e34147ac24688ba1ef218f6b137d16be8ff3022b1468ec92b7