[INFO] cloning repository https://github.com/ray33ee/Rust-B2B
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ray33ee/Rust-B2B" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fray33ee%2FRust-B2B", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fray33ee%2FRust-B2B'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec765b8cc19ca4a0ef2acb563dd64836f030f4e6
[INFO] building ray33ee/Rust-B2B against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fray33ee%2FRust-B2B" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ray33ee/Rust-B2B
[INFO] finished tweaking git repo https://github.com/ray33ee/Rust-B2B
[INFO] tweaked toml for git repo https://github.com/ray33ee/Rust-B2B written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ray33ee/Rust-B2B on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ray33ee/Rust-B2B 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fedcb4aad32891fd21ee026a3e8241e6a6b77dfc0b1e5ec0e7e9b4e2ba6f9287
[INFO] running `Command { std: "docker" "start" "-a" "fedcb4aad32891fd21ee026a3e8241e6a6b77dfc0b1e5ec0e7e9b4e2ba6f9287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fedcb4aad32891fd21ee026a3e8241e6a6b77dfc0b1e5ec0e7e9b4e2ba6f9287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fedcb4aad32891fd21ee026a3e8241e6a6b77dfc0b1e5ec0e7e9b4e2ba6f9287", kill_on_drop: false }`
[INFO] [stdout] fedcb4aad32891fd21ee026a3e8241e6a6b77dfc0b1e5ec0e7e9b4e2ba6f9287
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a9c63f6983c88e870c710af61f252c63a51cb5b73b9e9e0677e4b5d34243fe6
[INFO] running `Command { std: "docker" "start" "-a" "2a9c63f6983c88e870c710af61f252c63a51cb5b73b9e9e0677e4b5d34243fe6", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling blake-hash v0.4.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling rust_b2b v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     IOError(std::io::Error),
[INFO] [stdout]   |     ------- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 6 -     IOError(std::io::Error),
[INFO] [stdout] 6 +     IOError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 |     BincodeError(bincode::Error),
[INFO] [stdout]   |     ------------ ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 7 -     BincodeError(bincode::Error),
[INFO] [stdout] 7 +     BincodeError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `error` are never read
[INFO] [stdout]   --> src/error.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     error: Box<dyn std::error::Error>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.03s
[INFO] running `Command { std: "docker" "inspect" "2a9c63f6983c88e870c710af61f252c63a51cb5b73b9e9e0677e4b5d34243fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a9c63f6983c88e870c710af61f252c63a51cb5b73b9e9e0677e4b5d34243fe6", kill_on_drop: false }`
[INFO] [stdout] 2a9c63f6983c88e870c710af61f252c63a51cb5b73b9e9e0677e4b5d34243fe6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 240ab205e67f239e9469ae03be1439e56bdb3dd12d1c4097b19e93a01ff3c79f
[INFO] running `Command { std: "docker" "start" "-a" "240ab205e67f239e9469ae03be1439e56bdb3dd12d1c4097b19e93a01ff3c79f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_b2b v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     IOError(std::io::Error),
[INFO] [stdout]   |     ------- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 6 -     IOError(std::io::Error),
[INFO] [stdout] 6 +     IOError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 |     BincodeError(bincode::Error),
[INFO] [stdout]   |     ------------ ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 7 -     BincodeError(bincode::Error),
[INFO] [stdout] 7 +     BincodeError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `error` are never read
[INFO] [stdout]   --> src/error.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     error: Box<dyn std::error::Error>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "240ab205e67f239e9469ae03be1439e56bdb3dd12d1c4097b19e93a01ff3c79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240ab205e67f239e9469ae03be1439e56bdb3dd12d1c4097b19e93a01ff3c79f", kill_on_drop: false }`
[INFO] [stdout] 240ab205e67f239e9469ae03be1439e56bdb3dd12d1c4097b19e93a01ff3c79f