[INFO] cloning repository https://github.com/tanay-pingalkar/tof
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tanay-pingalkar/tof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanay-pingalkar%2Ftof", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanay-pingalkar%2Ftof'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c00de68a96e6437e95ad032a50c2092e17931621
[INFO] checking tanay-pingalkar/tof against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftanay-pingalkar%2Ftof" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tanay-pingalkar/tof on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tanay-pingalkar/tof
[INFO] finished tweaking git repo https://github.com/tanay-pingalkar/tof
[INFO] tweaked toml for git repo https://github.com/tanay-pingalkar/tof written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/tanay-pingalkar/tof already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7abfe5f5eed659a607c8e09317536da913c294df2fb6f7404be47ad4eeabb1e9
[INFO] running `Command { std: "docker" "start" "-a" "7abfe5f5eed659a607c8e09317536da913c294df2fb6f7404be47ad4eeabb1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7abfe5f5eed659a607c8e09317536da913c294df2fb6f7404be47ad4eeabb1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7abfe5f5eed659a607c8e09317536da913c294df2fb6f7404be47ad4eeabb1e9", kill_on_drop: false }`
[INFO] [stdout] 7abfe5f5eed659a607c8e09317536da913c294df2fb6f7404be47ad4eeabb1e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4294283c45154c4f14ee1c53dcd92c784ccb54e2025e8e06e2e8b199076f7ecb
[INFO] running `Command { std: "docker" "start" "-a" "4294283c45154c4f14ee1c53dcd92c784ccb54e2025e8e06e2e8b199076f7ecb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking tof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sub_lex`
[INFO] [stdout]    --> src/lexer.rs:150:35
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matcher(&mut self, mut sub_lex: &mut Vec<LEX>) {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_lex`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer.rs:150:31
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matcher(&mut self, mut sub_lex: &mut Vec<LEX>) {
[INFO] [stdout]     |                               ----^^^^^^^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_lex`
[INFO] [stdout]    --> src/lexer.rs:150:35
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matcher(&mut self, mut sub_lex: &mut Vec<LEX>) {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_lex`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MATCH`
[INFO] [stdout]  --> src/lexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     MATCH,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer.rs:150:31
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matcher(&mut self, mut sub_lex: &mut Vec<LEX>) {
[INFO] [stdout]     |                               ----^^^^^^^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MATCH`
[INFO] [stdout]  --> src/lexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     MATCH,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.00s
[INFO] running `Command { std: "docker" "inspect" "4294283c45154c4f14ee1c53dcd92c784ccb54e2025e8e06e2e8b199076f7ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4294283c45154c4f14ee1c53dcd92c784ccb54e2025e8e06e2e8b199076f7ecb", kill_on_drop: false }`
[INFO] [stdout] 4294283c45154c4f14ee1c53dcd92c784ccb54e2025e8e06e2e8b199076f7ecb