[INFO] fetching crate ddx 0.1.0...
[INFO] testing ddx-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ddx 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ddx 0.1.0
[INFO] finished tweaking crates.io crate ddx 0.1.0
[INFO] tweaked toml for crates.io crate ddx 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ddx 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ddx 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab7f8364aa6474b6259051bf1ebe268ccfbcf6b813963bea328b1baca758fa62
[INFO] running `Command { std: "docker" "start" "-a" "ab7f8364aa6474b6259051bf1ebe268ccfbcf6b813963bea328b1baca758fa62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab7f8364aa6474b6259051bf1ebe268ccfbcf6b813963bea328b1baca758fa62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7f8364aa6474b6259051bf1ebe268ccfbcf6b813963bea328b1baca758fa62", kill_on_drop: false }`
[INFO] [stdout] ab7f8364aa6474b6259051bf1ebe268ccfbcf6b813963bea328b1baca758fa62
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b77056cefb227929720856fbc842d9c3c0b1768fa4cde127689d6fa01ed89359
[INFO] running `Command { std: "docker" "start" "-a" "b77056cefb227929720856fbc842d9c3c0b1768fa4cde127689d6fa01ed89359", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-complex v0.4.2
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling fraction v0.12.2
[INFO] [stderr]    Compiling ap_calc v0.1.0
[INFO] [stderr]    Compiling ddx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut bank = new_bank('f', given_string);
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.43s
[INFO] running `Command { std: "docker" "inspect" "b77056cefb227929720856fbc842d9c3c0b1768fa4cde127689d6fa01ed89359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77056cefb227929720856fbc842d9c3c0b1768fa4cde127689d6fa01ed89359", kill_on_drop: false }`
[INFO] [stdout] b77056cefb227929720856fbc842d9c3c0b1768fa4cde127689d6fa01ed89359
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d0ccc9b98a0c7b85af8fe3676dfbf45c79d95cbddba2c8aecd2c84e54010d86
[INFO] running `Command { std: "docker" "start" "-a" "4d0ccc9b98a0c7b85af8fe3676dfbf45c79d95cbddba2c8aecd2c84e54010d86", kill_on_drop: false }`
[INFO] [stderr]    Compiling ddx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut bank = new_bank('f', given_string);
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "4d0ccc9b98a0c7b85af8fe3676dfbf45c79d95cbddba2c8aecd2c84e54010d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0ccc9b98a0c7b85af8fe3676dfbf45c79d95cbddba2c8aecd2c84e54010d86", kill_on_drop: false }`
[INFO] [stdout] 4d0ccc9b98a0c7b85af8fe3676dfbf45c79d95cbddba2c8aecd2c84e54010d86
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eba80e03d0f845456be99cc78f6ed589858c8b3aea83f651f45e16c8fd43e6ae
[INFO] running `Command { std: "docker" "start" "-a" "eba80e03d0f845456be99cc78f6ed589858c8b3aea83f651f45e16c8fd43e6ae", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut bank = new_bank('f', given_string);
[INFO] [stderr]   |         ----^^^^
[INFO] [stdout] 
[INFO] [stderr]   |         |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: `ddx` (bin "ddx" test) generated 1 warning (run `cargo fix --bin "ddx" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ddx-e3508e39ff62cefd)
[INFO] running `Command { std: "docker" "inspect" "eba80e03d0f845456be99cc78f6ed589858c8b3aea83f651f45e16c8fd43e6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eba80e03d0f845456be99cc78f6ed589858c8b3aea83f651f45e16c8fd43e6ae", kill_on_drop: false }`
[INFO] [stdout] eba80e03d0f845456be99cc78f6ed589858c8b3aea83f651f45e16c8fd43e6ae