[INFO] crate msg-transmitter 0.3.2 is already in cache
[INFO] extracting crate msg-transmitter 0.3.2 into work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/msg-transmitter/0.3.2
[INFO] extracting crate msg-transmitter 0.3.2 into work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/msg-transmitter/0.3.2
[INFO] validating manifest of msg-transmitter-0.3.2 on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of msg-transmitter-0.3.2 on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing msg-transmitter-0.3.2
[INFO] removed 0 missing examples
[INFO] finished frobbing msg-transmitter-0.3.2
[INFO] frobbed toml for msg-transmitter-0.3.2 written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/msg-transmitter/0.3.2/Cargo.toml
[INFO] started frobbing msg-transmitter-0.3.2
[INFO] removed 0 missing examples
[INFO] finished frobbing msg-transmitter-0.3.2
[INFO] frobbed toml for msg-transmitter-0.3.2 written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/msg-transmitter/0.3.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking msg-transmitter-0.3.2 against master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039 for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-6/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/msg-transmitter/0.3.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ff66c6aa7658b01b29c90804915d61d39d1795ca2bc9ff703497513799d18662
[INFO] running `"docker" "start" "-a" "ff66c6aa7658b01b29c90804915d61d39d1795ca2bc9ff703497513799d18662"`
[INFO] [stderr]     Checking msg-transmitter v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `futures::sync::mpsc`
[INFO] [stderr]   --> examples/master_and_slave.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     use futures::sync::mpsc;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]   --> examples/master_and_slave.rs:70:21
[INFO] [stderr]    |
[INFO] [stderr] 70 |     use std::sync::{Arc, Mutex};
[INFO] [stderr]    |                     ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `now`
[INFO] [stderr]   --> examples/master_and_slave.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let now = time::Instant::now();
[INFO] [stderr]    |             ^^^ help: consider using `_now` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `"docker" "inspect" "ff66c6aa7658b01b29c90804915d61d39d1795ca2bc9ff703497513799d18662"`
[INFO] running `"docker" "rm" "-f" "ff66c6aa7658b01b29c90804915d61d39d1795ca2bc9ff703497513799d18662"`
[INFO] [stdout] ff66c6aa7658b01b29c90804915d61d39d1795ca2bc9ff703497513799d18662