[INFO] fetching crate quicklist 0.0.1...
[INFO] checking quicklist-0.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate quicklist 0.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate quicklist 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 quicklist 0.0.1
[INFO] finished tweaking crates.io crate quicklist 0.0.1
[INFO] tweaked toml for crates.io crate quicklist 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate quicklist 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 simple-error v0.2.3
[INFO] [stderr]   Downloaded subprocess v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 178f7451e0587f1f266d99450ec099b67447fb64891e53059a1abe4dd6757085
[INFO] running `Command { std: "docker" "start" "-a" "178f7451e0587f1f266d99450ec099b67447fb64891e53059a1abe4dd6757085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "178f7451e0587f1f266d99450ec099b67447fb64891e53059a1abe4dd6757085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178f7451e0587f1f266d99450ec099b67447fb64891e53059a1abe4dd6757085", kill_on_drop: false }`
[INFO] [stdout] 178f7451e0587f1f266d99450ec099b67447fb64891e53059a1abe4dd6757085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cec4d200f30ab7fbf65df5e14c165be9b25cfc07d5ae614052c1829cdd969337
[INFO] running `Command { std: "docker" "start" "-a" "cec4d200f30ab7fbf65df5e14c165be9b25cfc07d5ae614052c1829cdd969337", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking subprocess v0.2.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking quicklist v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]  --> src/list/mod.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{BufReader, BufRead};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 9 | use std::io::prelude::*;
[INFO] [stdout]   |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]  --> src/list/mod.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{BufReader, BufRead};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 9 | use std::io::prelude::*;
[INFO] [stdout]   |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `get`, `get_today`, and `get_date` are never used
[INFO] [stdout]   --> src/list/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl List {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 32 |     pub fn get(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get_today(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn get_date(name: &str, date: NaiveDate) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `get`, `get_today`, and `get_date` are never used
[INFO] [stdout]   --> src/list/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl List {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 32 |     pub fn get(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get_today(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn get_date(name: &str, date: NaiveDate) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "cec4d200f30ab7fbf65df5e14c165be9b25cfc07d5ae614052c1829cdd969337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec4d200f30ab7fbf65df5e14c165be9b25cfc07d5ae614052c1829cdd969337", kill_on_drop: false }`
[INFO] [stdout] cec4d200f30ab7fbf65df5e14c165be9b25cfc07d5ae614052c1829cdd969337
[INFO] checking quicklist-0.0.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate quicklist 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate quicklist 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 quicklist 0.0.1
[INFO] finished tweaking crates.io crate quicklist 0.0.1
[INFO] tweaked toml for crates.io crate quicklist 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate quicklist 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e1fa32bb4ea042bf2d82b29aaabe72c14cacf3d23e1ab69bf921bf8b2657feb3
[INFO] running `Command { std: "docker" "start" "-a" "e1fa32bb4ea042bf2d82b29aaabe72c14cacf3d23e1ab69bf921bf8b2657feb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1fa32bb4ea042bf2d82b29aaabe72c14cacf3d23e1ab69bf921bf8b2657feb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fa32bb4ea042bf2d82b29aaabe72c14cacf3d23e1ab69bf921bf8b2657feb3", kill_on_drop: false }`
[INFO] [stdout] e1fa32bb4ea042bf2d82b29aaabe72c14cacf3d23e1ab69bf921bf8b2657feb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0dcf5e850f864b721e01f9461b074fb706306346c9dce14f3c585f7d70990ee5
[INFO] running `Command { std: "docker" "start" "-a" "0dcf5e850f864b721e01f9461b074fb706306346c9dce14f3c585f7d70990ee5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking subprocess v0.2.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking quicklist v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]  --> src/list/mod.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{BufReader, BufRead};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 9 | use std::io::prelude::*;
[INFO] [stdout]   |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BufRead` is imported redundantly
[INFO] [stdout]  --> src/list/mod.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{BufReader, BufRead};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 9 | use std::io::prelude::*;
[INFO] [stdout]   |     ------------------- the item `BufRead` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `get`, `get_today`, and `get_date` are never used
[INFO] [stdout]   --> src/list/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl List {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 32 |     pub fn get(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get_today(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn get_date(name: &str, date: NaiveDate) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `get`, `get_today`, and `get_date` are never used
[INFO] [stdout]   --> src/list/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl List {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 32 |     pub fn get(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get_today(name: &str) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn get_date(name: &str, date: NaiveDate) -> Result<List, Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "0dcf5e850f864b721e01f9461b074fb706306346c9dce14f3c585f7d70990ee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dcf5e850f864b721e01f9461b074fb706306346c9dce14f3c585f7d70990ee5", kill_on_drop: false }`
[INFO] [stdout] 0dcf5e850f864b721e01f9461b074fb706306346c9dce14f3c585f7d70990ee5