[INFO] fetching crate numrepr 0.1.0...
[INFO] testing numrepr-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate numrepr 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate numrepr 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate numrepr 0.1.0
[INFO] finished tweaking crates.io crate numrepr 0.1.0
[INFO] tweaked toml for crates.io crate numrepr 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] ebb25e692117607df48f8f7702a4bcd08bfdbb848887287b38f9bdcca902719d
[INFO] running `Command { std: "docker" "start" "-a" "ebb25e692117607df48f8f7702a4bcd08bfdbb848887287b38f9bdcca902719d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebb25e692117607df48f8f7702a4bcd08bfdbb848887287b38f9bdcca902719d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb25e692117607df48f8f7702a4bcd08bfdbb848887287b38f9bdcca902719d", kill_on_drop: false }`
[INFO] [stdout] ebb25e692117607df48f8f7702a4bcd08bfdbb848887287b38f9bdcca902719d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--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] a0230f58e7f40dc59772824ad7178149c9372f26ac41baf33813fbb840c6e413
[INFO] running `Command { std: "docker" "start" "-a" "a0230f58e7f40dc59772824ad7178149c9372f26ac41baf33813fbb840c6e413", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling numrepr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/main.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 |         s.trim_left_matches(self.prefix())
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.83s
[INFO] running `Command { std: "docker" "inspect" "a0230f58e7f40dc59772824ad7178149c9372f26ac41baf33813fbb840c6e413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0230f58e7f40dc59772824ad7178149c9372f26ac41baf33813fbb840c6e413", kill_on_drop: false }`
[INFO] [stdout] a0230f58e7f40dc59772824ad7178149c9372f26ac41baf33813fbb840c6e413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bf5eeaa0a48abd1b171ba5b5fa253089d3b7c10e71a15163ebc40c5ea217c12
[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" "6bf5eeaa0a48abd1b171ba5b5fa253089d3b7c10e71a15163ebc40c5ea217c12", kill_on_drop: false }`
[INFO] [stderr]    Compiling numrepr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/main.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 |         s.trim_left_matches(self.prefix())
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "6bf5eeaa0a48abd1b171ba5b5fa253089d3b7c10e71a15163ebc40c5ea217c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf5eeaa0a48abd1b171ba5b5fa253089d3b7c10e71a15163ebc40c5ea217c12", kill_on_drop: false }`
[INFO] [stdout] 6bf5eeaa0a48abd1b171ba5b5fa253089d3b7c10e71a15163ebc40c5ea217c12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6501df6345c69d55885602c2f327a5511b5f4687e5a0c6722506730b92419aa8
[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" "6501df6345c69d55885602c2f327a5511b5f4687e5a0c6722506730b92419aa8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout] running 7 tests
[INFO] [stderr]    --> src/main.rs:117:11
[INFO] [stdout] test test::numeral_trim_prefix ... ok
[INFO] [stderr]     |
[INFO] [stderr] 117 |         s.trim_left_matches(self.prefix())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/numrepr-5747ed26225f1ae2
[INFO] [stdout] test test::numeral_prefix ... ok
[INFO] [stdout] test test::numeral_parse_to_decimal ... ok
[INFO] [stdout] test test::format_num_test ... ok
[INFO] [stdout] test test::_prepare_input ... ok
[INFO] [stdout] test test::_parse_input ... ok
[INFO] [stdout] test test::numeral_determine ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6501df6345c69d55885602c2f327a5511b5f4687e5a0c6722506730b92419aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6501df6345c69d55885602c2f327a5511b5f4687e5a0c6722506730b92419aa8", kill_on_drop: false }`
[INFO] [stdout] 6501df6345c69d55885602c2f327a5511b5f4687e5a0c6722506730b92419aa8