[INFO] cloning repository https://github.com/tifrel/banter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tifrel/banter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftifrel%2Fbanter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftifrel%2Fbanter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84994492991db052f8788c8ce698839affc2dd0d
[INFO] checking tifrel/banter against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftifrel%2Fbanter" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tifrel/banter on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tifrel/banter
[INFO] finished tweaking git repo https://github.com/tifrel/banter
[INFO] tweaked toml for git repo https://github.com/tifrel/banter written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tifrel/banter 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix v0.12.0
[INFO] [stderr]   Downloaded actix-rt v2.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f5c648c8cdb06d02ee02fd3e23df6aa5d44754dd8f669f9c41e225ffabf12ce
[INFO] running `Command { std: "docker" "start" "-a" "5f5c648c8cdb06d02ee02fd3e23df6aa5d44754dd8f669f9c41e225ffabf12ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f5c648c8cdb06d02ee02fd3e23df6aa5d44754dd8f669f9c41e225ffabf12ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5c648c8cdb06d02ee02fd3e23df6aa5d44754dd8f669f9c41e225ffabf12ce", kill_on_drop: false }`
[INFO] [stdout] 5f5c648c8cdb06d02ee02fd3e23df6aa5d44754dd8f669f9c41e225ffabf12ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4a86c1b5a44546a3281d6471c0085ff3626d533425f9312c290d928f7bb32a7
[INFO] running `Command { std: "docker" "start" "-a" "b4a86c1b5a44546a3281d6471c0085ff3626d533425f9312c290d928f7bb32a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]    Compiling actix-macros v0.2.3
[INFO] [stderr]    Compiling actix_derive v0.6.0
[INFO] [stderr]     Checking actix-rt v2.4.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking actix v0.12.0
[INFO] [stderr]     Checking banter_p2p v0.1.0 (/opt/rustwide/workdir/p2p)
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/error.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::Into, fmt};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]  --> p2p/src/id.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     convert::{AsRef, From, Into},
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `AsRef` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> p2p/src/id.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     convert::{AsRef, From, Into},
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/id.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 |     convert::{AsRef, From, Into},
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/message.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::{Into, TryFrom};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/peerlist.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::{Into, TryFrom},
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/error.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::Into, fmt};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]  --> p2p/src/id.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     convert::{AsRef, From, Into},
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `AsRef` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> p2p/src/id.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     convert::{AsRef, From, Into},
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/id.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 |     convert::{AsRef, From, Into},
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/message.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::{Into, TryFrom};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> p2p/src/peerlist.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     convert::{Into, TryFrom},
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `task` is never read
[INFO] [stdout]   --> p2p/src/peerlist.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Peerlist {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 21 |     task: tokio::task::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Peerlist` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `task` is never read
[INFO] [stdout]   --> p2p/src/peerlist.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Peerlist {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 21 |     task: tokio::task::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Peerlist` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking banter v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stderr]     Checking banter-peer-explorer v0.1.0 (/opt/rustwide/workdir/peer-explorer)
[INFO] [stderr]     Checking banter-node v0.1.0 (/opt/rustwide/workdir/node)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "b4a86c1b5a44546a3281d6471c0085ff3626d533425f9312c290d928f7bb32a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a86c1b5a44546a3281d6471c0085ff3626d533425f9312c290d928f7bb32a7", kill_on_drop: false }`
[INFO] [stdout] b4a86c1b5a44546a3281d6471c0085ff3626d533425f9312c290d928f7bb32a7