[INFO] fetching crate lc3asm 0.1.2...
[INFO] checking lc3asm-0.1.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate lc3asm 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate lc3asm 0.1.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lc3asm 0.1.2
[INFO] finished tweaking crates.io crate lc3asm 0.1.2
[INFO] tweaked toml for crates.io crate lc3asm 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate lc3asm 0.1.2 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded block-padding v0.1.4
[INFO] [stderr]   Downloaded pest_meta v2.1.1
[INFO] [stderr]   Downloaded unescape v0.1.0
[INFO] [stderr]   Downloaded failure_derive v0.1.5
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded pretty-bytes v0.2.2
[INFO] [stderr]   Downloaded arraydeque v0.4.5
[INFO] [stderr]   Downloaded scopeguard v1.0.0
[INFO] [stderr]   Downloaded lc3dbg v1.2.2
[INFO] [stderr]   Downloaded encode_unicode v0.3.5
[INFO] [stderr]   Downloaded pest v2.1.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded cc v1.0.40
[INFO] [stderr]   Downloaded backtrace v0.3.34
[INFO] [stderr]   Downloaded ucd-trie v0.1.2
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded console v0.7.7
[INFO] [stderr]   Downloaded regex-syntax v0.6.11
[INFO] [stderr]   Downloaded synstructure v0.10.2
[INFO] [stderr]   Downloaded lc3-rs v0.4.3
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded maplit v1.0.1
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.31
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded getopts v0.2.19
[INFO] [stderr]   Downloaded typenum v1.10.0
[INFO] [stderr]   Downloaded generic-array v0.12.3
[INFO] [stderr]   Downloaded pest_generator v2.1.0
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded bitstream-io v0.8.4
[INFO] [stderr]   Downloaded clicolors-control v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5bedece56b2a3368bcc3cb1d5be88cb8cfc55202702a0633b417dfab382134d
[INFO] running `Command { std: "docker" "start" "-a" "c5bedece56b2a3368bcc3cb1d5be88cb8cfc55202702a0633b417dfab382134d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5bedece56b2a3368bcc3cb1d5be88cb8cfc55202702a0633b417dfab382134d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5bedece56b2a3368bcc3cb1d5be88cb8cfc55202702a0633b417dfab382134d", kill_on_drop: false }`
[INFO] [stdout] c5bedece56b2a3368bcc3cb1d5be88cb8cfc55202702a0633b417dfab382134d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fec135329917d6bb7d9a8dfd1d0d01a8a3b953a9784a67768ead829dde647c2a
[INFO] running `Command { std: "docker" "start" "-a" "fec135329917d6bb7d9a8dfd1d0d01a8a3b953a9784a67768ead829dde647c2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking lc3-rs v0.4.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking pest v2.1.1
[INFO] [stderr]     Checking bitstream-io v0.8.4
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking lc3dbg v1.2.2
[INFO] [stderr]     Checking lc3asm v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/symbol_table.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let (symbols, size, entry) = crate::first_pass(&parsed)?;
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     unreachable!(pair);
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `unreachable!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     unreachable!("{}", pair);
[INFO] [stdout]    |                                  +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     unreachable!(pair);
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `unreachable!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     unreachable!("{}", pair);
[INFO] [stdout]    |                                  +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.07s
[INFO] running `Command { std: "docker" "inspect" "fec135329917d6bb7d9a8dfd1d0d01a8a3b953a9784a67768ead829dde647c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fec135329917d6bb7d9a8dfd1d0d01a8a3b953a9784a67768ead829dde647c2a", kill_on_drop: false }`
[INFO] [stdout] fec135329917d6bb7d9a8dfd1d0d01a8a3b953a9784a67768ead829dde647c2a