[INFO] fetching crate roots 0.0.6...
[INFO] checking roots-0.0.6 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate roots 0.0.6 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate roots 0.0.6 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate roots 0.0.6
[INFO] finished tweaking crates.io crate roots 0.0.6
[INFO] tweaked toml for crates.io crate roots 0.0.6 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f7fe6edd57c9696dedc6321b6f55205af67b0cd1fbbdcbf282f165bb343b4e2
[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" "6f7fe6edd57c9696dedc6321b6f55205af67b0cd1fbbdcbf282f165bb343b4e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f7fe6edd57c9696dedc6321b6f55205af67b0cd1fbbdcbf282f165bb343b4e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f7fe6edd57c9696dedc6321b6f55205af67b0cd1fbbdcbf282f165bb343b4e2", kill_on_drop: false }`
[INFO] [stdout] 6f7fe6edd57c9696dedc6321b6f55205af67b0cd1fbbdcbf282f165bb343b4e2
[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=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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f1f8f7b6a306e235e5bf2dfb152fd88f956f3f978321a53cc4591775a68bf16
[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" "3f1f8f7b6a306e235e5bf2dfb152fd88f956f3f978321a53cc4591775a68bf16", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking roots v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/numerical/inverse_quadratic.rs:209:40
[INFO] [stdout]     |
[INFO] [stdout] 209 |         assert_eq!(result.unwrap_err().description(), "Initial values do not bracket zero");
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[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/numerical/regula_falsi.rs:160:40
[INFO] [stdout]     |
[INFO] [stdout] 160 |         assert_eq!(result.unwrap_err().description(), "Initial values do not bracket zero");
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.87s
[INFO] running `Command { std: "docker" "inspect" "3f1f8f7b6a306e235e5bf2dfb152fd88f956f3f978321a53cc4591775a68bf16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1f8f7b6a306e235e5bf2dfb152fd88f956f3f978321a53cc4591775a68bf16", kill_on_drop: false }`
[INFO] [stdout] 3f1f8f7b6a306e235e5bf2dfb152fd88f956f3f978321a53cc4591775a68bf16