[INFO] fetching crate lc3dbg 1.2.2...
[INFO] checking lc3dbg-1.2.2 against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] extracting crate lc3dbg 1.2.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate lc3dbg 1.2.2 on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lc3dbg 1.2.2
[INFO] finished tweaking crates.io crate lc3dbg 1.2.2
[INFO] tweaked toml for crates.io crate lc3dbg 1.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate lc3dbg 1.2.2 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0056e6a54cb350ad7e626dd6c3177cbdb8e01c46bf84b37068eb9386df27b4dd
[INFO] running `Command { std: "docker" "start" "-a" "0056e6a54cb350ad7e626dd6c3177cbdb8e01c46bf84b37068eb9386df27b4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0056e6a54cb350ad7e626dd6c3177cbdb8e01c46bf84b37068eb9386df27b4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0056e6a54cb350ad7e626dd6c3177cbdb8e01c46bf84b37068eb9386df27b4dd", kill_on_drop: false }`
[INFO] [stdout] 0056e6a54cb350ad7e626dd6c3177cbdb8e01c46bf84b37068eb9386df27b4dd
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa5d4913e21dfd8ad95b5d3c35ded5a1d2b30ff98cec33cf0ed6d530b39e2f15
[INFO] running `Command { std: "docker" "start" "-a" "fa5d4913e21dfd8ad95b5d3c35ded5a1d2b30ff98cec33cf0ed6d530b39e2f15", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking lc3-rs v0.4.1
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking lc3dbg v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/symbol.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let splits = instruction.clone().split(" ").collect::<Vec<_>>();
[INFO] [stdout]    |                             ^^^^^^^^ unnecessary method call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/symbol.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let splits = instruction.clone().split(" ").collect::<Vec<_>>();
[INFO] [stdout]    |                             ^^^^^^^^ unnecessary method call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lc3dbg` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lc3dbg` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fa5d4913e21dfd8ad95b5d3c35ded5a1d2b30ff98cec33cf0ed6d530b39e2f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa5d4913e21dfd8ad95b5d3c35ded5a1d2b30ff98cec33cf0ed6d530b39e2f15", kill_on_drop: false }`
[INFO] [stdout] fa5d4913e21dfd8ad95b5d3c35ded5a1d2b30ff98cec33cf0ed6d530b39e2f15