[INFO] cloning repository https://github.com/jtdowney/b2sum-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtdowney/b2sum-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdowney%2Fb2sum-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdowney%2Fb2sum-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b713b245230a25c3730f67b2b5fb6ae2c4715af3
[INFO] checking jtdowney/b2sum-rs against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdowney%2Fb2sum-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtdowney/b2sum-rs on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtdowney/b2sum-rs
[INFO] finished tweaking git repo https://github.com/jtdowney/b2sum-rs
[INFO] tweaked toml for git repo https://github.com/jtdowney/b2sum-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jtdowney/b2sum-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2b_simd v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d54db58facdc8b0aab72e87d90c52fe427c41f2192ac81c9563370f83a19e622
[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" "d54db58facdc8b0aab72e87d90c52fe427c41f2192ac81c9563370f83a19e622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d54db58facdc8b0aab72e87d90c52fe427c41f2192ac81c9563370f83a19e622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54db58facdc8b0aab72e87d90c52fe427c41f2192ac81c9563370f83a19e622", kill_on_drop: false }`
[INFO] [stdout] d54db58facdc8b0aab72e87d90c52fe427c41f2192ac81c9563370f83a19e622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 460ae8e2529b3fb0c37004bc28c631c2a68560a1f39d31d670b56cecbe7437ae
[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" "460ae8e2529b3fb0c37004bc28c631c2a68560a1f39d31d670b56cecbe7437ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking blake2b_simd v0.5.2
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]     Checking regex v1.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking b2sum v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     error_chain! {
[INFO] [stdout] 7  | |         foreign_links {
[INFO] [stdout] 8  | |             Fmt(::std::fmt::Error);
[INFO] [stdout] 9  | |             Io(::std::io::Error);
[INFO] [stdout] 10 | |         }
[INFO] [stdout] 11 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     error_chain! {
[INFO] [stdout] 7  | |         foreign_links {
[INFO] [stdout] 8  | |             Fmt(::std::fmt::Error);
[INFO] [stdout] 9  | |             Io(::std::io::Error);
[INFO] [stdout] 10 | |         }
[INFO] [stdout] 11 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     error_chain! {
[INFO] [stdout] 7  | |         foreign_links {
[INFO] [stdout] 8  | |             Fmt(::std::fmt::Error);
[INFO] [stdout] 9  | |             Io(::std::io::Error);
[INFO] [stdout] 10 | |         }
[INFO] [stdout] 11 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | /     error_chain! {
[INFO] [stdout] 7  | |         foreign_links {
[INFO] [stdout] 8  | |             Fmt(::std::fmt::Error);
[INFO] [stdout] 9  | |             Io(::std::io::Error);
[INFO] [stdout] 10 | |         }
[INFO] [stdout] 11 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.82s
[INFO] running `Command { std: "docker" "inspect" "460ae8e2529b3fb0c37004bc28c631c2a68560a1f39d31d670b56cecbe7437ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460ae8e2529b3fb0c37004bc28c631c2a68560a1f39d31d670b56cecbe7437ae", kill_on_drop: false }`
[INFO] [stdout] 460ae8e2529b3fb0c37004bc28c631c2a68560a1f39d31d670b56cecbe7437ae