[INFO] crate term_fb 0.0.1 is already in cache
[INFO] testing term_fb-0.0.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate term_fb 0.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate term_fb 0.0.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate term_fb 0.0.1
[INFO] finished tweaking crates.io crate term_fb 0.0.1
[INFO] tweaked toml for crates.io crate term_fb 0.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b0f6a9674bf1776d184b5c2c91dd028dd28895a6a21d84d26e2313b1a910434
[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" "4b0f6a9674bf1776d184b5c2c91dd028dd28895a6a21d84d26e2313b1a910434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b0f6a9674bf1776d184b5c2c91dd028dd28895a6a21d84d26e2313b1a910434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0f6a9674bf1776d184b5c2c91dd028dd28895a6a21d84d26e2313b1a910434", kill_on_drop: false }`
[INFO] [stdout] 4b0f6a9674bf1776d184b5c2c91dd028dd28895a6a21d84d26e2313b1a910434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 04ccdc00d2c14366f9106853bbee2f95bc7342ca56bf17316e8fc025b202d0a2
[INFO] running `Command { std: "docker" "start" "-a" "04ccdc00d2c14366f9106853bbee2f95bc7342ca56bf17316e8fc025b202d0a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling spin_sleep v0.3.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling term_fb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_float)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(range_contains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `termios` is imported redundantly
[INFO] [stdout]    --> src/term.rs:111:19
[INFO] [stdout]     |
[INFO] [stdout] 111 |     use termios::{self, Termios};
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/buf.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/input_parser.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 ch @ ' ' ... '~' => InputKey::AsciiPrintable(ch),
[INFO] [stdout]    |                          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/input_parser.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 ch @ '\x00' ... '\x1f' => InputKey::AsciiControl(std::char::from_u32((ch as u32) + 0x40).expect("Always succeeds.")),
[INFO] [stdout]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_float_secs` found for struct `std::time::Duration` in the current scope
[INFO] [stdout]   --> src/sim_loop.rs:34:50
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 buf.blit_float(1.0/loop_duration.as_float_secs(), 1, fps_xy);
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^ method not found in `std::time::Duration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `term_fb`.
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04ccdc00d2c14366f9106853bbee2f95bc7342ca56bf17316e8fc025b202d0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ccdc00d2c14366f9106853bbee2f95bc7342ca56bf17316e8fc025b202d0a2", kill_on_drop: false }`
[INFO] [stdout] 04ccdc00d2c14366f9106853bbee2f95bc7342ca56bf17316e8fc025b202d0a2