[INFO] fetching crate sirlog 0.0.1...
[INFO] checking sirlog-0.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate sirlog 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate sirlog 0.0.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sirlog 0.0.1
[INFO] finished tweaking crates.io crate sirlog 0.0.1
[INFO] tweaked toml for crates.io crate sirlog 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate sirlog 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded strum v0.20.0
[INFO] [stderr]   Downloaded futures-sink v0.3.13
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.72
[INFO] [stderr]   Downloaded futures-task v0.3.13
[INFO] [stderr]   Downloaded strum_macros v0.20.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.72
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.72
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.72
[INFO] [stderr]   Downloaded async-trait v0.1.48
[INFO] [stderr]   Downloaded js-sys v0.3.49
[INFO] [stderr]   Downloaded libc v0.2.90
[INFO] [stderr]   Downloaded tokio v1.3.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.72
[INFO] [stderr]   Downloaded getrandom v0.2.2
[INFO] [stderr]   Downloaded nanorand v0.5.2
[INFO] [stderr]   Downloaded pin-project-internal v1.0.5
[INFO] [stderr]   Downloaded pin-project v1.0.5
[INFO] [stderr]   Downloaded spinning_top v0.2.2
[INFO] [stderr]   Downloaded flume v0.10.2
[INFO] [stderr]   Downloaded futures-executor v0.3.13
[INFO] [stderr]   Downloaded futures-util v0.3.13
[INFO] [stderr]   Downloaded futures-channel v0.3.13
[INFO] [stderr]   Downloaded futures-macro v0.3.13
[INFO] [stderr]   Downloaded futures v0.3.13
[INFO] [stderr]   Downloaded futures-core v0.3.13
[INFO] [stderr]   Downloaded futures-io v0.3.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e227d8b99cfa1ce0e7046340d4d601cd12351ec082a56337072d119c6e43b5a2
[INFO] running `Command { std: "docker" "start" "-a" "e227d8b99cfa1ce0e7046340d4d601cd12351ec082a56337072d119c6e43b5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e227d8b99cfa1ce0e7046340d4d601cd12351ec082a56337072d119c6e43b5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e227d8b99cfa1ce0e7046340d4d601cd12351ec082a56337072d119c6e43b5a2", kill_on_drop: false }`
[INFO] [stdout] e227d8b99cfa1ce0e7046340d4d601cd12351ec082a56337072d119c6e43b5a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b134bf07fc88242eb9dd924e61f8dd5bd6cbb57ab2cd14a489448419ca7ca3f
[INFO] running `Command { std: "docker" "start" "-a" "7b134bf07fc88242eb9dd924e61f8dd5bd6cbb57ab2cd14a489448419ca7ca3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling tokio v1.3.0
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking spinning_top v0.2.2
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nanorand v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking flume v0.10.2
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking sirlog v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Configuration` is imported redundantly
[INFO] [stdout]    --> src/log.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |     use super::*;
[INFO] [stdout]     |         -------- the item `Configuration` is already imported here
[INFO] [stdout] 166 |     use crate::{Configuration, Manager};
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.33s
[INFO] running `Command { std: "docker" "inspect" "7b134bf07fc88242eb9dd924e61f8dd5bd6cbb57ab2cd14a489448419ca7ca3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b134bf07fc88242eb9dd924e61f8dd5bd6cbb57ab2cd14a489448419ca7ca3f", kill_on_drop: false }`
[INFO] [stdout] 7b134bf07fc88242eb9dd924e61f8dd5bd6cbb57ab2cd14a489448419ca7ca3f
[INFO] checking sirlog-0.0.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate sirlog 0.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate sirlog 0.0.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sirlog 0.0.1
[INFO] finished tweaking crates.io crate sirlog 0.0.1
[INFO] tweaked toml for crates.io crate sirlog 0.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate sirlog 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 386d0bc9b7fc6650780ec63166c0655ea9c14a73c47a96e9387b67aa219f26d6
[INFO] running `Command { std: "docker" "start" "-a" "386d0bc9b7fc6650780ec63166c0655ea9c14a73c47a96e9387b67aa219f26d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "386d0bc9b7fc6650780ec63166c0655ea9c14a73c47a96e9387b67aa219f26d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386d0bc9b7fc6650780ec63166c0655ea9c14a73c47a96e9387b67aa219f26d6", kill_on_drop: false }`
[INFO] [stdout] 386d0bc9b7fc6650780ec63166c0655ea9c14a73c47a96e9387b67aa219f26d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2be74d4838691a61bbc560e83356bf956781cc7d072b9a0a8b7f0577737b24c
[INFO] running `Command { std: "docker" "start" "-a" "e2be74d4838691a61bbc560e83356bf956781cc7d072b9a0a8b7f0577737b24c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling tokio v1.3.0
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking spinning_top v0.2.2
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nanorand v0.5.2
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking flume v0.10.2
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking sirlog v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Configuration` is imported redundantly
[INFO] [stdout]    --> src/log.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |     use super::*;
[INFO] [stdout]     |         -------- the item `Configuration` is already imported here
[INFO] [stdout] 166 |     use crate::{Configuration, Manager};
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.31s
[INFO] running `Command { std: "docker" "inspect" "e2be74d4838691a61bbc560e83356bf956781cc7d072b9a0a8b7f0577737b24c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2be74d4838691a61bbc560e83356bf956781cc7d072b9a0a8b7f0577737b24c", kill_on_drop: false }`
[INFO] [stdout] e2be74d4838691a61bbc560e83356bf956781cc7d072b9a0a8b7f0577737b24c