[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#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdowney%2Fb2sum-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtdowney/b2sum-rs on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", 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-11/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" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.30
[INFO] [stderr]   Downloaded blake2b_simd v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecba2786ffe08ae21f349ab77cbf9802b107aa47d3982bcf1c31d8bf251628de
[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" "ecba2786ffe08ae21f349ab77cbf9802b107aa47d3982bcf1c31d8bf251628de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecba2786ffe08ae21f349ab77cbf9802b107aa47d3982bcf1c31d8bf251628de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecba2786ffe08ae21f349ab77cbf9802b107aa47d3982bcf1c31d8bf251628de", kill_on_drop: false }`
[INFO] [stdout] ecba2786ffe08ae21f349ab77cbf9802b107aa47d3982bcf1c31d8bf251628de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d94a2de75d7c7c7968c28e3605be6d1fe36697aeb3540c4468a07866eebf138
[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" "7d94a2de75d7c7c7968c28e3605be6d1fe36697aeb3540c4468a07866eebf138", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking blake2b_simd v0.5.2
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]    Compiling serde_derive 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: 2 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.17s
[INFO] running `Command { std: "docker" "inspect" "7d94a2de75d7c7c7968c28e3605be6d1fe36697aeb3540c4468a07866eebf138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d94a2de75d7c7c7968c28e3605be6d1fe36697aeb3540c4468a07866eebf138", kill_on_drop: false }`
[INFO] [stdout] 7d94a2de75d7c7c7968c28e3605be6d1fe36697aeb3540c4468a07866eebf138