[INFO] fetching crate mcfly 0.5.9...
[INFO] checking mcfly-0.5.9 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate mcfly 0.5.9 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mcfly 0.5.9 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mcfly 0.5.9
[INFO] finished tweaking crates.io crate mcfly 0.5.9
[INFO] tweaked toml for crates.io crate mcfly 0.5.9 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mcfly 0.5.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded relative-path v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaefb087dc1f76bf148800e12a7ea645f7cc4d867e5aa0c4f1ad4de38306c02c
[INFO] running `Command { std: "docker" "start" "-a" "eaefb087dc1f76bf148800e12a7ea645f7cc4d867e5aa0c4f1ad4de38306c02c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaefb087dc1f76bf148800e12a7ea645f7cc4d867e5aa0c4f1ad4de38306c02c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaefb087dc1f76bf148800e12a7ea645f7cc4d867e5aa0c4f1ad4de38306c02c", kill_on_drop: false }`
[INFO] [stdout] eaefb087dc1f76bf148800e12a7ea645f7cc4d867e5aa0c4f1ad4de38306c02c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df88d7305ae7386eb2bd23c34246c5983d393b97861e57c734c77b2aecb38742
[INFO] running `Command { std: "docker" "start" "-a" "df88d7305ae7386eb2bd23c34246c5983d393b97861e57c734c77b2aecb38742", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking relative-path v1.0.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.10.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rusqlite v0.15.0
[INFO] [stderr]     Checking mcfly v0.5.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `settings`
[INFO] [stdout]   --> src/training_sample_generator.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     settings: &'a Settings,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `history`
[INFO] [stdout]   --> src/training_sample_generator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     history: &'a History,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `settings`
[INFO] [stdout]   --> src/training_sample_generator.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     settings: &'a Settings,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `history`
[INFO] [stdout]   --> src/training_sample_generator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     history: &'a History,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[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 31.42s
[INFO] running `Command { std: "docker" "inspect" "df88d7305ae7386eb2bd23c34246c5983d393b97861e57c734c77b2aecb38742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df88d7305ae7386eb2bd23c34246c5983d393b97861e57c734c77b2aecb38742", kill_on_drop: false }`
[INFO] [stdout] df88d7305ae7386eb2bd23c34246c5983d393b97861e57c734c77b2aecb38742