[INFO] fetching crate ferrite-session 0.2.0...
[INFO] checking ferrite-session-0.2.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate ferrite-session 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ferrite-session 0.2.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ferrite-session 0.2.0
[INFO] finished tweaking crates.io crate ferrite-session 0.2.0
[INFO] tweaked toml for crates.io crate ferrite-session 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d61bb687ef6784ea6594aaa455b0c90f87e82b7fd03a4fee47c6d0da296eede
[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" "4d61bb687ef6784ea6594aaa455b0c90f87e82b7fd03a4fee47c6d0da296eede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d61bb687ef6784ea6594aaa455b0c90f87e82b7fd03a4fee47c6d0da296eede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d61bb687ef6784ea6594aaa455b0c90f87e82b7fd03a4fee47c6d0da296eede", kill_on_drop: false }`
[INFO] [stdout] 4d61bb687ef6784ea6594aaa455b0c90f87e82b7fd03a4fee47c6d0da296eede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd8e8e561d78550dce491120f1d5789f04bd2b356cd8fc6044bda1aa604d3715
[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" "cd8e8e561d78550dce491120f1d5789f04bd2b356cd8fc6044bda1aa604d3715", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking ipc-channel v0.15.0
[INFO] [stderr]     Checking ferrite-session v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/internal/functional/row/utils.rs:39:3
[INFO] [stdout]    |
[INFO] [stdout] 39 |   match row1.get_sum() {}
[INFO] [stdout]    |   ^^^^^^--------------^^^
[INFO] [stdout]    |   |     |
[INFO] [stdout]    |   |     any code following this expression is unreachable
[INFO] [stdout]    |   unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `row::structs::Bottom`, which is uninhabited
[INFO] [stdout]   --> src/internal/functional/row/utils.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |   match row1.get_sum() {}
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/internal/functional/row/utils.rs:39:3
[INFO] [stdout]    |
[INFO] [stdout] 39 |   match row1.get_sum() {}
[INFO] [stdout]    |   ^^^^^^--------------^^^
[INFO] [stdout]    |   |     |
[INFO] [stdout]    |   |     any code following this expression is unreachable
[INFO] [stdout]    |   unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `row::structs::Bottom`, which is uninhabited
[INFO] [stdout]   --> src/internal/functional/row/utils.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |   match row1.get_sum() {}
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.49s
[INFO] running `Command { std: "docker" "inspect" "cd8e8e561d78550dce491120f1d5789f04bd2b356cd8fc6044bda1aa604d3715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8e8e561d78550dce491120f1d5789f04bd2b356cd8fc6044bda1aa604d3715", kill_on_drop: false }`
[INFO] [stdout] cd8e8e561d78550dce491120f1d5789f04bd2b356cd8fc6044bda1aa604d3715