[INFO] fetching crate rss2tg 0.2.3...
[INFO] checking rss2tg-0.2.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate rss2tg 0.2.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rss2tg 0.2.3 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rss2tg 0.2.3
[INFO] finished tweaking crates.io crate rss2tg 0.2.3
[INFO] tweaked toml for crates.io crate rss2tg 0.2.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c657ddf330d05a260d993f982360e9c5c564e2b1b0fc84fdb8def9d20fa81398
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c657ddf330d05a260d993f982360e9c5c564e2b1b0fc84fdb8def9d20fa81398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c657ddf330d05a260d993f982360e9c5c564e2b1b0fc84fdb8def9d20fa81398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c657ddf330d05a260d993f982360e9c5c564e2b1b0fc84fdb8def9d20fa81398", kill_on_drop: false }`
[INFO] [stdout] c657ddf330d05a260d993f982360e9c5c564e2b1b0fc84fdb8def9d20fa81398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b58f02c9861d7e80c6058293fb8f9900bd20599c037c468452c3ac7b54f27e69
[INFO] running `Command { std: "docker" "start" "-a" "b58f02c9861d7e80c6058293fb8f9900bd20599c037c468452c3ac7b54f27e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]    Compiling synstructure v0.12.4
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[INFO] [stderr]     Checking serde v1.0.116
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[INFO] [stderr]     Checking rss v1.9.0
[INFO] [stderr]     Checking rss2tg v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> src/rss2tg/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use std::cmp::Ordering;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TryRecvError`, `self`
[INFO] [stdout]   --> src/rss2tg/lib.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 | use std::sync::mpsc::{self, TryRecvError};
[INFO] [stdout]    |                       ^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/config.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/config.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn new(args: &[String]) -> Result<Config, Box<error::Error>> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/lib.rs:46:46
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/lib.rs:65:60
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn main_loop(subscription: Subscription) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> src/rss2tg/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use std::cmp::Ordering;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TryRecvError`, `self`
[INFO] [stdout]   --> src/rss2tg/lib.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 | use std::sync::mpsc::{self, TryRecvError};
[INFO] [stdout]    |                       ^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/config.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/config.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn new(args: &[String]) -> Result<Config, Box<error::Error>> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/lib.rs:46:46
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run(config: Config) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rss2tg/lib.rs:65:60
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn main_loop(subscription: Subscription) -> Result<(), Box<error::Error>> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 43s
[INFO] running `Command { std: "docker" "inspect" "b58f02c9861d7e80c6058293fb8f9900bd20599c037c468452c3ac7b54f27e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b58f02c9861d7e80c6058293fb8f9900bd20599c037c468452c3ac7b54f27e69", kill_on_drop: false }`
[INFO] [stdout] b58f02c9861d7e80c6058293fb8f9900bd20599c037c468452c3ac7b54f27e69