[INFO] fetching crate rs_box 0.0.28...
[INFO] building rs_box-0.0.28 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rs_box 0.0.28 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rs_box 0.0.28
[INFO] finished tweaking crates.io crate rs_box 0.0.28
[INFO] tweaked toml for crates.io crate rs_box 0.0.28 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs_box 0.0.28 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rs_box 0.0.28 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a60656bdc84de12c225d75d903a134c444c68cbdd0c95aa5991a9b7054cc7b09
[INFO] running `Command { std: "docker" "start" "-a" "a60656bdc84de12c225d75d903a134c444c68cbdd0c95aa5991a9b7054cc7b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a60656bdc84de12c225d75d903a134c444c68cbdd0c95aa5991a9b7054cc7b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60656bdc84de12c225d75d903a134c444c68cbdd0c95aa5991a9b7054cc7b09", kill_on_drop: false }`
[INFO] [stdout] a60656bdc84de12c225d75d903a134c444c68cbdd0c95aa5991a9b7054cc7b09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c64aedd1312937146a3c397cc26989370d6b0972986acdeca34ba8507748a9a
[INFO] running `Command { std: "docker" "start" "-a" "0c64aedd1312937146a3c397cc26989370d6b0972986acdeca34ba8507748a9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling winnow v0.7.7
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling pathdiff v0.2.3
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling toml v0.8.20
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling rs_box v0.0.28 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/block_chain/coin_flags.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/block_chain/hash_rate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block_chain::hash_rate`
[INFO] [stdout]  --> src/block_chain/hash_rate_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::block_chain::hash_rate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/block_chain/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod hash_rate_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rs_box_log::*`
[INFO] [stdout]   --> src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use rs_box_log::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `toml::Value`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use toml::Value;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/block_chain/hash_rate.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |         HashRateUnitFormat::Hs | _ => (base_hash_rate, HashRateUnitFormat::Hs, HashRateUnitFormat::Hs.to_string()),
[INFO] [stdout]    |                                  ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/block_chain/hash_rate.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |         HashRateUnitFormat::YHs => (base_hash_rate / y, HashRateUnitFormat::YHs, HashRateUnitFormat::YHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 66 |         HashRateUnitFormat::ZHs => (base_hash_rate / z, HashRateUnitFormat::ZHs, HashRateUnitFormat::ZHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 67 |         HashRateUnitFormat::EHs => (base_hash_rate / e, HashRateUnitFormat::EHs, HashRateUnitFormat::EHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 68 |         HashRateUnitFormat::PHs => (base_hash_rate / p, HashRateUnitFormat::PHs, HashRateUnitFormat::PHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |         HashRateUnitFormat::Hs | _ => (base_hash_rate, HashRateUnitFormat::Hs, HashRateUnitFormat::Hs.to_string()),
[INFO] [stdout]    |                                  ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.71s
[INFO] running `Command { std: "docker" "inspect" "0c64aedd1312937146a3c397cc26989370d6b0972986acdeca34ba8507748a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c64aedd1312937146a3c397cc26989370d6b0972986acdeca34ba8507748a9a", kill_on_drop: false }`
[INFO] [stdout] 0c64aedd1312937146a3c397cc26989370d6b0972986acdeca34ba8507748a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57b83bc0a8e26375fabbeb633a1f2de359436bc7212f20e327ee3732588ca986
[INFO] running `Command { std: "docker" "start" "-a" "57b83bc0a8e26375fabbeb633a1f2de359436bc7212f20e327ee3732588ca986", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs_box v0.0.28 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/block_chain/coin_flags.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/block_chain/hash_rate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::block_chain::hash_rate`
[INFO] [stdout]  --> src/block_chain/hash_rate_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::block_chain::hash_rate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/block_chain/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod hash_rate_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rs_box_log::*`
[INFO] [stdout]   --> src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use rs_box_log::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `toml::Value`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use toml::Value;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/block_chain/hash_rate.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |         HashRateUnitFormat::Hs | _ => (base_hash_rate, HashRateUnitFormat::Hs, HashRateUnitFormat::Hs.to_string()),
[INFO] [stdout]    |                                  ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/block_chain/hash_rate.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |         HashRateUnitFormat::YHs => (base_hash_rate / y, HashRateUnitFormat::YHs, HashRateUnitFormat::YHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 66 |         HashRateUnitFormat::ZHs => (base_hash_rate / z, HashRateUnitFormat::ZHs, HashRateUnitFormat::ZHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 67 |         HashRateUnitFormat::EHs => (base_hash_rate / e, HashRateUnitFormat::EHs, HashRateUnitFormat::EHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 68 |         HashRateUnitFormat::PHs => (base_hash_rate / p, HashRateUnitFormat::PHs, HashRateUnitFormat::PHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |         HashRateUnitFormat::Hs | _ => (base_hash_rate, HashRateUnitFormat::Hs, HashRateUnitFormat::Hs.to_string()),
[INFO] [stdout]    |                                  ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/block_chain/coin_flags.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/block_chain/hash_rate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rs_box_log::*`
[INFO] [stdout]   --> src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub use rs_box_log::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `toml::Value`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use toml::Value;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/block_chain/hash_rate.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |         HashRateUnitFormat::Hs | _ => (base_hash_rate, HashRateUnitFormat::Hs, HashRateUnitFormat::Hs.to_string()),
[INFO] [stdout]    |                                  ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/block_chain/hash_rate.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |         HashRateUnitFormat::YHs => (base_hash_rate / y, HashRateUnitFormat::YHs, HashRateUnitFormat::YHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 66 |         HashRateUnitFormat::ZHs => (base_hash_rate / z, HashRateUnitFormat::ZHs, HashRateUnitFormat::ZHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 67 |         HashRateUnitFormat::EHs => (base_hash_rate / e, HashRateUnitFormat::EHs, HashRateUnitFormat::EHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] 68 |         HashRateUnitFormat::PHs => (base_hash_rate / p, HashRateUnitFormat::PHs, HashRateUnitFormat::PHs.to_string()),
[INFO] [stdout]    |         ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |         HashRateUnitFormat::Hs | _ => (base_hash_rate, HashRateUnitFormat::Hs, HashRateUnitFormat::Hs.to_string()),
[INFO] [stdout]    |                                  ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "57b83bc0a8e26375fabbeb633a1f2de359436bc7212f20e327ee3732588ca986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b83bc0a8e26375fabbeb633a1f2de359436bc7212f20e327ee3732588ca986", kill_on_drop: false }`
[INFO] [stdout] 57b83bc0a8e26375fabbeb633a1f2de359436bc7212f20e327ee3732588ca986