[INFO] cloning repository https://github.com/ruckc/mcr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruckc/mcr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc0734752846b14b3828d56403c693cc03db35da
[INFO] checking ruckc/mcr against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruckc/mcr on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruckc/mcr
[INFO] finished tweaking git repo https://github.com/ruckc/mcr
[INFO] tweaked toml for git repo https://github.com/ruckc/mcr written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ruckc/mcr 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.3.25
[INFO] [stderr]   Downloaded syslog v4.0.1
[INFO] [stderr]   Downloaded odds v0.2.26
[INFO] [stderr]   Downloaded hexdump v0.1.0
[INFO] [stderr]   Downloaded clokwerk v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac4a94b9de10a673f47298e3f08f0546711f2cebced7a876bc4af557427d35a4
[INFO] running `Command { std: "docker" "start" "-a" "ac4a94b9de10a673f47298e3f08f0546711f2cebced7a876bc4af557427d35a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac4a94b9de10a673f47298e3f08f0546711f2cebced7a876bc4af557427d35a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4a94b9de10a673f47298e3f08f0546711f2cebced7a876bc4af557427d35a4", kill_on_drop: false }`
[INFO] [stdout] ac4a94b9de10a673f47298e3f08f0546711f2cebced7a876bc4af557427d35a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5adc3786f713e5999606d123397e92f61791a17464baece373c08dc29b59f6d4
[INFO] running `Command { std: "docker" "start" "-a" "5adc3786f713e5999606d123397e92f61791a17464baece373c08dc29b59f6d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking hexdump v0.1.0
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking clokwerk v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking mcr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]   --> src/config.rs:18:80
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .about("Sets up multicast routing for pure IGMP (Layer 2) management.")
[INFO] [stdout]    |                                                                                ^ help: add `;` here
[INFO] [stdout] ...
[INFO] [stdout] 21 |     let config_ini = ini::Ini::load_from_file(configfile.expect("No configuration file specified")).unwrap()    ;
[INFO] [stdout]    |     --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]   --> src/config.rs:18:80
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .about("Sets up multicast routing for pure IGMP (Layer 2) management.")
[INFO] [stdout]    |                                                                                ^ help: add `;` here
[INFO] [stdout] ...
[INFO] [stdout] 21 |     let config_ini = ini::Ini::load_from_file(configfile.expect("No configuration file specified")).unwrap()    ;
[INFO] [stdout]    |     --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]   --> src/config.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use clap;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate clap;
[INFO] [stdout]    | ------------------ the item `clap` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ini` is imported redundantly
[INFO] [stdout]   --> src/config.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use ini;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern crate ini;
[INFO] [stdout]    | ----------------- the item `ini` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `clap` is imported redundantly
[INFO] [stdout]   --> src/config.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use clap;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate clap;
[INFO] [stdout]    | ------------------ the item `clap` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ini` is imported redundantly
[INFO] [stdout]   --> src/config.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use ini;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern crate ini;
[INFO] [stdout]    | ----------------- the item `ini` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/config.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let matches = clap::App::new("MultiCast Router")
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/config.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let matches = clap::App::new("MultiCast Router")
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[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/config.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut configfile: Option<String> = None;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut configfile: Option<String> = None;
[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: `config`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let config = crate::config::init();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vifs`
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut vifs = vif::init();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_vifs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let config = crate::config::init();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vifs`
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut vifs = vif::init();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_vifs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut vifs = vif::init();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut vifs = vif::init();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcr` (bin "mcr" test) due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mcr` (bin "mcr") due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5adc3786f713e5999606d123397e92f61791a17464baece373c08dc29b59f6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5adc3786f713e5999606d123397e92f61791a17464baece373c08dc29b59f6d4", kill_on_drop: false }`
[INFO] [stdout] 5adc3786f713e5999606d123397e92f61791a17464baece373c08dc29b59f6d4