[INFO] updating cached repository https://github.com/instagibbs/backoutmasterkey
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52f5bbfd2e4243f7f0b3fb5e4612db7fc7d618f0
[INFO] checking instagibbs/backoutmasterkey against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Finstagibbs%2Fbackoutmasterkey" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/instagibbs/backoutmasterkey on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/instagibbs/backoutmasterkey
[INFO] finished tweaking git repo https://github.com/instagibbs/backoutmasterkey
[INFO] tweaked toml for git repo https://github.com/instagibbs/backoutmasterkey written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/instagibbs/backoutmasterkey already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 04ee9f92039820e2995872bfe13216a820f866a076b1b565acc2110d3a4b3417
[INFO] running `"docker" "start" "-a" "04ee9f92039820e2995872bfe13216a820f866a076b1b565acc2110d3a4b3417"`
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]    Compiling secp256k1 v0.6.3
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]    Compiling hex-literal-impl v0.1.0
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking hex-literal v0.1.0
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking num-rational v0.1.41
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking serde v0.6.15
[INFO] [stderr]     Checking strason v0.3.4
[INFO] [stderr]     Checking serde_json v0.6.1
[INFO] [stderr]     Checking jsonrpc v0.8.0
[INFO] [stderr]     Checking bitcoin v0.10.6
[INFO] [stderr]     Checking backoutmasterkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/main.rs:41:76
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let child_key = bitcoin::util::address::Privkey::from_base58check(v[2].trim_right()).unwrap();
[INFO] [stderr]    |                                                                            ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     child_tweak.mul_assign(&ctx, &minusone_key);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     child_secret.add_assign(&ctx, &child_tweak);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/main.rs:41:76
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let child_key = bitcoin::util::address::Privkey::from_base58check(v[2].trim_right()).unwrap();
[INFO] [stderr]    |                                                                            ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     child_tweak.mul_assign(&ctx, &minusone_key);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     child_secret.add_assign(&ctx, &child_tweak);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.16s
[INFO] running `"docker" "inspect" "04ee9f92039820e2995872bfe13216a820f866a076b1b565acc2110d3a4b3417"`
[INFO] running `"docker" "rm" "-f" "04ee9f92039820e2995872bfe13216a820f866a076b1b565acc2110d3a4b3417"`
[INFO] [stdout] 04ee9f92039820e2995872bfe13216a820f866a076b1b565acc2110d3a4b3417