[INFO] fetching crate dotplot 0.1.0...
[INFO] checking dotplot-0.1.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate dotplot 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dotplot 0.1.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dotplot 0.1.0
[INFO] finished tweaking crates.io crate dotplot 0.1.0
[INFO] tweaked toml for crates.io crate dotplot 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-2/source/src/dotplot.rs` was erroneously implicitly accepted for binary `dotplot`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded docopt v0.6.86
[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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df24721df3431bb2e4db1032a0f5818ef9fa8656840aef63b940ce0375a0e13c
[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" "df24721df3431bb2e4db1032a0f5818ef9fa8656840aef63b940ce0375a0e13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df24721df3431bb2e4db1032a0f5818ef9fa8656840aef63b940ce0375a0e13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df24721df3431bb2e4db1032a0f5818ef9fa8656840aef63b940ce0375a0e13c", kill_on_drop: false }`
[INFO] [stdout] df24721df3431bb2e4db1032a0f5818ef9fa8656840aef63b940ce0375a0e13c
[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" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] 5b9b08b020dbe9d9d4eef8cd2b22c5f0d59b928fcc9ecc708fe9046fa0b55d79
[INFO] running `Command { std: "docker" "start" "-a" "5b9b08b020dbe9d9d4eef8cd2b22c5f0d59b928fcc9ecc708fe9046fa0b55d79", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/dotplot.rs` was erroneously implicitly accepted for binary `dotplot`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking dotplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/dotplot.rs:59:31
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Err(reason) => panic!(reason.to_string()),
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Err(reason) => panic!("{}", reason.to_string()),
[INFO] [stdout]    |                               +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Err(reason) => std::panic::panic_any(reason.to_string()),
[INFO] [stdout]    |                        ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/dotplot.rs:59:31
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Err(reason) => panic!(reason.to_string()),
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Err(reason) => panic!("{}", reason.to_string()),
[INFO] [stdout]    |                               +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Err(reason) => std::panic::panic_any(reason.to_string()),
[INFO] [stdout]    |                        ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.17s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b9b08b020dbe9d9d4eef8cd2b22c5f0d59b928fcc9ecc708fe9046fa0b55d79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9b08b020dbe9d9d4eef8cd2b22c5f0d59b928fcc9ecc708fe9046fa0b55d79", kill_on_drop: false }`
[INFO] [stdout] 5b9b08b020dbe9d9d4eef8cd2b22c5f0d59b928fcc9ecc708fe9046fa0b55d79